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• No login prompt displayed after updating Ubuntu 10.04, broken gdm

  - by cliff

  So here's what happens: I updated my system the other day, was prompted for a reboot for the update to complete but was in the middle of working so I delayed it until after I was done. I reboot and it's broken :(. It appears to boot normally, with the following exceptions: The purple Ubuntu load screen no longer displays (though it did for the first couple of times I tried to get in). I hear the login prompt sound, but no login prompt appears. Nor is it simply "invisible" - pressing enter, typing my password, and pressing enter again do nothing. Normally my Bluetooth mouse is functional at this point, but it is not. GRUB displays recovery options for my current kernel, and for an older one (2.6.32-24). Trying to boot into .32-24 gives me an error saying "udevadm can't do something while udev is not configured". So I try solutions listed here: http://superuser.com/questions/195786/ubuntu-update-went-wrong-pc-doesnt-boot-how-can-i-repair-it Nothing I tried seemed to work, and after further Googling my hunch is that it's a problem with gdm. Please correct me if I'm wrong, I don't know all that much about how Linux/Ubuntu systems work just yet. Things I'm able to do: Boot to a live CD Ctrl-Alt-F2 after that login sound plays brings me to a console login, which I can successfully do (it's how I tried the solutions above). This works only under the current kernel. A hack I'd be willing to explore is removing the login prompt from the console, but I'd prefer to "simply" fix what's wrong. Like that guy, I need to repair the system rather than reinstall. System: Dell Inspiron 1525 Core 2 Duo Proprietary Driver for Broadcom 43xx wireless Dual-boot with Windows 7 (which is how I'm posting this, unfortunately I only have this machine and any experimenting requires constant reboots into Windows/brokenbuntu) Last package installed was Moonlight, but it appeared to install properly. Kernel: 2.6.32-25 Edit: After working with Karl's suggestions, it seems that the problem is with gdm. Error exit status 245 when attempting to sudo apt-get install --reinstall gdm, also an error processing gdm when running sudo apt-get -f install. How do I reinstall or repair gdm so that I can get back into my machine?

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• Troubleshooting an NFS server hanging after authenticated mount request

  - by Christoph

  I need some advice on troubleshooting an NFS server problem on Scientific Linux (RHEL) 6.1. The log on the server shows that an authenticated mount request was made: Jan 13 16:30:02 ??? rpc.mountd[3996]: authenticated mount request from ????:784 for /shared-storage/cm/shared (/shared-storage/cm/shared) But after that, it does not continue. On the client, it is also hanging. The interesting thing now is that I have two NFS servers, which should be identical, and the one is working perfectly, but the other exhibits the above mentioned behaviour. The problem is also not completely persistent, i. e. sometimes the mount request succeeds. I assume that the problem must be related to the server rather than to the client, because it is working perfectly on the other server. My question is where I should search the problem. I have already re-created the exports using exportfs -r, I have restarted the NFS server, I have compared the rpcinfo outputs of both server - no success. The problem even survives a reboot. Any other ideas are appreciated. As answer to Tim's question: I have sporadically the following in dmesg, but do not know whether it is related e1000e 0000:0c:00.0: eth4: Detected Hardware Unit Hang: TDH <24> TDT <25> next_to_use <25> next_to_clean <24> buffer_info[next_to_clean]: time_stamp <1c3d12940> next_to_watch <24> jiffies <1c3d12940> next_to_watch.status <0> MAC Status <80383> PHY Status <792d> PHY 1000BASE-T Status <7800> PHY Extended Status <3000> PCI Status <10> Further edit: The problem above does not occur on the machine that is working, so it probably is related. Again an edit: The error is not on the (software) device that is used for NFS, but on another one. The NFS mount also does not trigger the message.

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• Could I centralize batch files more efficiently?

  - by PeanutsMonkey

  I am new to the world of batch scripting so please forgive what may appear as basic questions. I am learning as I get assigned different jobs and I am a huge proponent of automation where possible. I have several batch files that perform several tasks. Each of these files had their paths hard-coded e.g. c:\temp. d:\data, etc in the batch file. Initially I moved these to a text file I could call from a batch file e.g. for /f "tokens=1,2 delims==" %%R in (config.txt) do ( if %%R==bdata set bdata=%%S if %%R==cdata set cdata=%%S ) The config.txt file contains these values bdata=c:\temp cdata=d:\data I realized that each time I would need to create a new variable, I would need to update the config.txt file as well the config.bat files. I decided I would move all the values to just the config.bat file as follows set bdata=c:\temp set cdata=d:\data I then updated each of the existing batch files to call the variables rather than the hard-coded paths. I also added the following lines of code to each batch file except config.bat. The only additional line added to the config.bat file is @echo off. @echo off setlocal enableextensions enabledelayedexpansion call config.bat I then have another batch file that centralizes calling all the batch files in sequence. The name of this batch file is start.bat. The reason I am using start /wait is because there have been instances of where the delete.bat runs before compress.bat has had an opportunity to finish. start /wait compress.bat start /wait validate.bat start /wait delete.bat Questions Is this the best way to centralize values and if not, what is a better way? Do I need to specify setlocal enableextensions enabledelayedexpansion in all the existing batch files? Do all the batch files have to have @echo off or is it sufficient for just the config.bat file? Is start /wait the best way to call multiple files? Can I pass values from one batch file to another using the said command? All the batch files have different functions e.g. move, delete, etc however use %%a or %%b. Is this okay? For example The validate.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == "" move /Y "%bdata%\%%~xa" "%bdata%\%done%" and the delete.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == ".txt" del "%%a"

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• Sent items listed by sender's name (my name!) not recipient in Outlook for Mac 2011

  - by user568458

  Outlook 2011 on a Mac (OSX7 Lion), on a (mostly PC) office network using Microsoft Exchange server. In Outlook 2011, in the network "Sent Items" folder, all emails are listed showing the sender's name (my name), not the recipients' names. That means every single email is headed with my own name, like this: My Name 08/09/2012 Some subject line [flag] My Name 08/09/2012 Re: Another subject line [flag] My Name 07/09/2012 Re: different subject line [flag] My Name 07/09/2012 different subject line [flag] ...and so on. There's no clue at all as to who these emails were to, until I open each and every one. I guess it's reassuring to be told that every email that I sent was sent by me... and if I was ever to forget my own name while browsing my sent emails folder, it'd be super useful... But it's not very helpful for navigating sent emails. Is this normal for Office for Mac 2011? How can I fix this, so that the list shows the recipients' names instead of endlessly reminding me of my own name? Things I've found while researching this: This can also happen in Outlook for Windows. On Windows, it's easily fixed by resetting the field. That method doesn't work on Mac because the fields can't be selected separately. It seems this can also happen in Apple Mail too, and a lot of people seem stumped by this. I can't find anything on this specific to Outlook 2011 or Outlook for Mac in general. A simple guide on how to fix this would be the best answer, but I'd also welcome any knowledgable thoughts from Microsoft Exchange Server people on whether this sounds like an Outlook settings issue which I can fix on my machine, or some issue relating to how the Mac gets data from the server and network. The fact that Apple Mail users have encountered the same issue with no apparent fix makes me think the problem might be in the network rather than the mail client - but that's way beyond my limited knowledge of these things. I don't know whether the local ("On my computer") Sent Items folder has the same problem, as it's configured so that no emails except drafts are ever stored in these local folders. Drafts saved locally are listed by recipient as expected.

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• Is my Cisco switch port bad?

  - by ewwhite

  I've been chasing a packet-loss and network stability issue for a handful of end-users on an internal network for the past few days... These issues surfaced last week, however the location was struck by lightning six weeks ago. I was seeing 5-10% packet loss between a stack of four Cisco 2960's and several PC's and phones on the other side of a 77-meter run. The PC's were run inline with the phones over a trunked link (switchport configuration pastebin). We were seeing dropped calls and interruptions in client-server applications and Microsoft Exchange connectivity. I tried the usual troubleshooting steps remotely, having a local technician do the following during breaks in user and production activity: change cables between the wall jack and device. change patch cables between the patch panel and switch port(s). try different switch ports within the 2960 stack. change end-user devices with known-good equipment (new phones, different PC's). clear switch port interface counters and monitor incrementing errors closely. (Pastebin output of sh int) Pored over the device logs and Observium RRD graphs. No link up/down issues from the switch side. change power strips on the end-user side. test cable runs from the Cisco 2960 using test cable-diagnostics tdr int Gi4/0/9 (clean)* test cable runs with a Tripp-Lite cable tester. (clean) run diagnostics on the switch stack members. (clean) In the end, it took three changes of switch ports to find a stable solution. The only logical conclusion is that a few Cisco 2960 switch ports are bad or flaky... Not dead, but not consistent in behavior either. I'm not used to seeing individual ports die in this manner. What else can I test or check to determine if these devices are bad? Is it common for single ports to have problems, rather than a contiguous bank of ports? BTW - show cable-diagnostics tdr int Gi4/0/14 is very cool... Interface Speed Local pair Pair length Remote pair Pair status --------- ----- ---------- ------------------ ----------- -------------------- Gi4/0/14 1000M Pair A 79 +/- 0 meters Pair B Normal Pair B 75 +/- 0 meters Pair A Normal Pair C 77 +/- 0 meters Pair D Normal Pair D 79 +/- 0 meters Pair C Normal

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• How to upgrade a 1.4.3 TortoiseSVN-created repository to 1.6.x?

  - by SiegeX

  A few years ago, TortoiseSVN 1.4.3 was deployed to our software development team and we are now looking at upgrading the client to the latest 1.6.x version. I had hoped this upgrade would be transparent with the additional features and modifications being client-side. For the most part, this was true except for a very important feature -- merging. When I try to merge a feature branch back into truck I get a show-stopping "Merge tracking not supported error." Here are some facts worth noting: When the repo was first created (before I was on board), it was created via the TortoiseSVN client itself. We do not have a 'svn server daemon' per se, rather the repository folders/database resides on a share folder that is accessible from our workstation machines via file:///. This was actually an eye opener for me, I had always thought there was some SVN server daemon we were talking to. We do not have any access to the underlying machine hosting the SVN share other than the ability to read/write to the share itself. I don't even know what OS the machine is running on. This share server was chosen because its drives are backed up nightly by our IT group. In all honesty, we really don't need the merge tracking feature although it would be nice to have. For the time being it would be sufficient to be able to use a 1.6.x TortoiseSVN client on the 1.4.3 repository and have it merge (sans tracking) without error. So now the question becomes, how does one upgrade a client-created 1.4.3 repo to a 1.6.x compatible version without access to the underlying machine the repo resides on? I was hoping the TortoiseSVN client itself had the ability to do this but that does not appear to be the case. Will I be forced to copy the entire repo over to my local drive, run some svn commands to upgrade the repo locally then copy the repo back to the share point? If so, will doing this break any compatibility with the the 1.4.3 clients in case we cant upgrade them all at the same time? Thanks for the help.

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• How to upgrade a 1.4.3 TortoiseSVN-created repository to 1.6.x?

  - by SiegeX

  A few years ago, TortoiseSVN 1.4.3 was deployed to our software development team and we are now looking at upgrading the client to the latest 1.6.x version. I had hoped this upgrade would be transparent with the additional features and modifications being client-side. For the most part, this was true except for a very important feature -- merging. When I try to merge a feature branch back into truck I get a show-stopping "Merge tracking not supported error." Here are some facts worth noting: When the repo was first created (before I was on board), it was created via the TortoiseSVN client itself. We do not have a 'svn server daemon' per se, rather the repository folders/database resides on a share folder that is accessible from our workstation machines via file:///. This was actually an eye opener for me, I had always thought there was some SVN server daemon we were talking to. We do not have any access to the underlying machine hosting the SVN share other than the ability to read/write to the share itself. I don't even know what OS the machine is running on. This share server was chosen because its drives are backed up nightly by our IT group. In all honesty, we really don't need the merge tracking feature although it would be nice to have. For the time being it would be sufficient to be able to use a 1.6.x TortoiseSVN client on the 1.4.3 repository and have it merge (sans tracking) without error. So now the question becomes, how does one upgrade a client-created 1.4.3 repo to a 1.6.x compatible version without access to the underlying machine the repo resides on? I was hoping the TortoiseSVN client itself had the ability to do this but that does not appear to be the case. Will I be forced to copy the entire repo over to my local drive, run some svn commands to upgrade the repo locally then copy the repo back to the share point? If so, will doing this break any compatibility with the the 1.4.3 clients in case we cant upgrade them all at the same time? Thanks for the help.

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• How to enable caching on Apache / Ubuntu Linux?

  - by Jim Mischel

  I have a large (several megabytes) XML file that's updated rather frequently (every 10 minutes or less) and gets a lot of traffic. I'd like to implement some caching to reduce bandwidth and server load. Looking at the Apache documents, I see a dizzying array of configuration options that involve various combinations of mod_expires, mod_headers, and mod_cache (and variants). I end up running in circles and the results aren't what I expect. I'm comfortable editing the various configuration files if I have some idea what I'm supposed to change. But at the moment I'm poking around in the dark and that's never a comfortable feeling. So, perhaps if I describe what I want, somebody here can take me by the hand and say, "This is what you need to do." Periodically, this file, call it "stuff.xml" is updated and a new version copied to the directory. The external url would be, for example, http://example.com/stuff.xml. Understand, this part works. Whenever I request the file, I get the expected result. But the file is big and I want to save bandwidth, so first I'd like to implement conditional GET semantics with the If-Modified-Since header. How do I do this? I've enabled mod_headers and mod_expired and added the <FilesMatching> section in my httpd.conf as recommended in countless examples I've seen online, but that didn't change the behavior when made a conditional GET request. I always get a status 200 with the entire document. So how the heck do I implement this? That'll cut down on neeless transfers. I'd also like to limit the amount of data transferred. Seeing as this is XML, gzipping it should save me 50% or more. My next step would be to somehow gzip the file and, if it's not too difficult, store it in memory. That'll cut down on per-access data transfer, and also reduce disk transfers. So how do I implement this type of caching? Thanks in advance.

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• Intel RST accidentally selected wrong drive as system drive -- how to fix?

  - by Sean Killeen

  Question / TL;DR If Intel RST has marked a drive other than my RAID set as the system drive, how can I get it so that the RAID set is now seen as the system drive, and catch it up to my drive now? What Happened NOTE: Some perhaps unwise decisions are ahead. This is as best as I can recall the order of things. I had a 2x1TB RAID1 config. I bought the drives around the same time, and they started to die around the same time. I replaced 1st drive with a 2 TB drive before the other one's SMART errors got more serious. I waited for the RAID to replicate, then replaced the 2nd drive with a manufacturer's replacement. I got a second manufacturer's drive replacement and used it as a spare. so I now I had a 1TB/2TB drive in a RAID1 and another 1TB as a spare. The 1TB drive in the replacement set was bad from the manufacturer. Rather than mess with their refurbished stuff, I bought another 2 TB drive an upped the config to a 2x2TB RAID1 with the other, functioning manufacturer's drive as a spare. I made the mistake of trying to bring the other drive online to clean it out and the signatue clash killed my machine. When the machine rebooted, that drive was marked as the system drive. So, I have a 2x2TB RAID1 that is apparently offline, and 1 spare 1 TB refurbished drive that everything is being run from. Not a great idea. Options I'm considering Bring the 2x2TB drive back online, and then unplug the spare until I can format it in another system. This would involve some data loss, but the more I think about it, I actually think I haven't modified any data that isn't backed up or synced somewhere (go me!) Anything that isn't is likely trivial, enough that I'm willing to take the risk. One downside here is that if the 2 TB doesn't have data on it for some reason, I could be screwed trying to put the other drive back in, no? Try to somehow get the RAID1 updated with the data from the current system drive. Option 3?

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• Unecrypted Image of Truecrypt-Encrypted System Partition

  - by Dexter

  The general tenor around the internet seems to be that you can't create images of system partitions that have been encrypted (with truecrypt) other than with dd or similar sector-by-sector copy tools. These files however are very impractical given their size (and are obviously incompressible) which makes keeping multiple states/backups of your system partition rather expensive (..especially considering current hdd prices). The problem is that backup tools (like Acronis True Image, Clonezilla, etc.) won't give you the option to create an image of (mounted/opened) Truecrypt partitions, or that there is no recovery environment for restoring the backup, that would allow to run truecrypt before doing any actual restoring. After some trial and error however, I believe I have found a very simple way. Since Truecrypt (running in Linux) creates a virtual block device, that it uses for mounting the unencrypted partitions into the file system, partclone can be used for creating/restoring images. What I did: boot up a linux live disk mount/open the drive/device/partition in truecrypt unmount the filesystem mount point again, like so: umount /media/truecryptX ("X" being the partition number assigend by truecrypt) use partclone (this is what clonezilla would do too, except that clonezilla only offers you to back up real drive partitions, not virtual block devices): partclone.ntfs -c -s /dev/mapper/truecryptX -o nameOfBackupFile for restoring steps 1-3 remain the same, and step 4 is partclone.ntfs -r -s nameOfBackupFile -o /dev/mapper/truecryptX A backup and test-restore of the system (with this method) seems to have worked fine (and the changed settings were reverted to the backup-state). The backup file is ~40 GB (and compressible down to <8GB with 7zip/LZMA2 on the "fast" setting). I can't quite believe that I'm the only one that wants to create images of encrypted drives, but doesn't want to waste 100GB on the backup of one single system state. So my question now is, given how simple this was, and that no one seems to mention anywhere that this is possible - did I miss something? or did I do something wrong? Is there any situation that I didn't think of where this method will fail? Obviously, the backup file needs to be stored in some other encrypted place in order to still remain confidential, since it is unencrypted. Also, in order to do a full "bare metal" restore, one would have to actually first (re-)install Windows, encrypt it, and only then restore the backup file. The funny thing however is that you won't need to backup any partition tables, etc. since the reinstall will effectively take care of that. Is there anything else? This is imho still a lot better than having sector-by-sector images..

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• Outlook refuses to connect to Exchange

  - by wfaulk

  Outlook 2007 under Windows XP connecting to Exchange 2003 SP2: when started, it flips back and forth between "Connecting to Exchange Server" and "Disconnected" three or four times, then gives up and stays disconnected. I tried deleting the ost file (which was nearly 2GB), turning Cached mode on and off, recreating the account inside the Mail control panel, changing the account to use HTTP, and probably some other things. None of it seemed to make any difference, until … After fiddling with it for a while, I got this absurd error message dialog at startup, and it exits after I click OK: Cannot start Microsoft Office Outlook. Cannot open the Outlook window. The set of folders cannot be opened. Microsoft Exchange is not available. Either there are network problems or the Exchange server is down for maintenance. (I'm not sure if I can even trust that message. It's so long, it just feels like a random offset into Outlook's stack of error messages.) Either way, the Exchange server is available to everyone else, and is available via OWA from that computer. I ran Process Explorer against Outlook and it showed 5 or so ESTABLISHED connections to our Exchange server, plus listening on two UDP ports, and two CLOSE_WAIT connections to localhost. If I managed to look at Outlook's IP connections while it was doing its Connecting/Disconnected dance, it had a huge number of connections open to the Exchange server. It more than filled ProcExp's dialog box; I'm guessing at least 20, probably more. The only other odd thing is that our network admin at some point added a wildcard DNS record to the domain name that we use for email, and now Outlook will sometimes (always?) start by complaining about autodiscover.example.com's SSL certificate. There is a web server there, but it doesn't have any sort of email autodiscover anything on it. It doesn't make any difference if I click "OK" or "Cancel" (or whatever the buttons are). I also added a bogus entry for the hostname to Windows' hosts file, pointing it at 127.0.0.2, and it stopped complaining about the certificate. (The CLOSE_WAIT sockets above were from before I made this change, and went away after.) I don't think this is related, as the same problem should exist for everyone, but it might be. This is the second time this user has had this problem. The first time, I never found a solution other than reinstalling Outlook. Now that it's a pattern, I'd like to find a permanent solution, rather than assume it's a random glitch.

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• Pinning based on origin of a reprepro repository.

  - by Shtééf

  I'm on Ubuntu 10.04, and trying to set up a repository using reprepro. I'd also like the pin everything in that repository to be preferred over anything else, even if packages are older versions. (It will only contain a select set of packages.) However, I cannot seem to get the pinning to work, and believe it has something to do with the repository side of things, rather than the apt configuration on the client. I've taken the following steps to set up my repository Installed a web server (my personal choice here is Cherokee), Created the directory /var/www/apt/, Created the file conf/distributions, like so: Origin: Shteef Label: Shteef Suite: lucid Version: 10.04 Codename: lucid Architectures: i386 amd64 source Components: main Description: My personal repository Ran reprepro export from the /var/www/apt/ directory. Now on any other machine, I can add this (empty) repository over HTTP to my /etc/apt/sources.list, and run apt-get update without any errors: Ign http://archive.lan lucid Release.gpg Ign http://archive.lan/apt/ lucid/main Translation-en_US Get:1 http://archive.lan lucid Release [2,244B] Ign http://archive.lan lucid/main Packages Ign http://archive.lan lucid/main Sources Ign http://archive.lan lucid/main Packages Ign http://archive.lan lucid/main Sources Hit http://archive.lan lucid/main Packages Hit http://archive.lan lucid/main Sources In my case, now I want to use an old version of Asterisk, namely Asterisk 1.4. I rebuilt the asterisk-1:1.4.21.2~dfsg-3ubuntu2.1 package from Ubuntu 9.04 (with some small changes to fix dependencies) and uploaded it to my repository. At this point I can see the new package in aptitude, but it naturally prefers the newer Asterisk 1.6 currently in the Ubuntu 10.04 repositories. To try and fix that, I have created /etc/apt/preferences.d/personal like so: Package: * Pin: release o=Shteef Pin-Priority: 1000 But when I try to install the asterisk package, it will still prefer the 1.6 version over my own 1.4 version. This is what apt-cache policy asterisk shows: asterisk: Installed: (none) Candidate: 1:1.6.2.5-0ubuntu1 Version table: 1:1.6.2.5-0ubuntu1 0 500 http://nl.archive.ubuntu.com/ubuntu/ lucid/universe Packages 1:1.4.21.2~dfsg-3ubuntu2.1shteef1 0 500 http://archive.lan/apt/ lucid/main Packages Clearly, it is not picking up my pin. In fact, when I run just apt-cache policy, I get the following: Package files: 100 /var/lib/dpkg/status release a=now 500 http://archive.lan/apt/ lucid/main Packages origin archive.lan 500 http://security.ubuntu.com/ubuntu/ lucid-security/multiverse Packages release v=10.04,o=Ubuntu,a=lucid-security,n=lucid,l=Ubuntu,c=multiverse origin security.ubuntu.com [...] Unlike Ubuntu's repository, apt doesn't seem to pick up a release-line at all for my own repository. I'm suspecting this is the cause why I can't pin on release o=Shteef in my preferences file. But I can't find any noticable difference between my repository's Release files and Ubuntu's that would cause this. Is there a step I've missed or mistake I've made in setting up my repository?

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• I am unable to connect to my netbook from any machine on my network until the netbook has pinged it

  - by Samuel Husky

  I have a rather strange issue with my netbook on my local network. When trying to connect to it in any way from a remote system it does not appear to find it. However if I get the netbook to ping the machine trying to connect it mystically appears to work. Below is the ping test from my main PC to the netbook. C:\Users\Sam>ping 192.168.8.102 Pinging 192.168.8.102 with 32 bytes of data: Reply from 192.168.8.100: Destination host unreachable. Reply from 192.168.8.100: Destination host unreachable. Reply from 192.168.8.100: Destination host unreachable. Reply from 192.168.8.100: Destination host unreachable. Ping statistics for 192.168.8.102: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Now a ping from the netbook to my main PC sam@malamute ~ $ ping 192.168.8.100 PING 192.168.8.100 (192.168.8.100) 56(84) bytes of data. 64 bytes from 192.168.8.100: icmp_req=1 ttl=128 time=2.46 ms 64 bytes from 192.168.8.100: icmp_req=2 ttl=128 time=0.835 ms 64 bytes from 192.168.8.100: icmp_req=3 ttl=128 time=1.60 ms 64 bytes from 192.168.8.100: icmp_req=4 ttl=128 time=1.32 ms 64 bytes from 192.168.8.100: icmp_req=5 ttl=128 time=1.34 ms ^C --- 192.168.8.100 ping statistics --- 5 packets transmitted, 5 received, 0% packet loss, time 4004ms rtt min/avg/max/mdev = 0.835/1.514/2.460/0.536 ms And the same ping again from the main PC after the netbook has made a connection to it C:\Users\Sam>ping 192.168.8.102 Pinging 192.168.8.102 with 32 bytes of data: Reply from 192.168.8.102: bytes=32 time=1ms TTL=64 Reply from 192.168.8.102: bytes=32 time=1ms TTL=64 Reply from 192.168.8.102: bytes=32 time=1ms TTL=64 Reply from 192.168.8.102: bytes=32 time=1ms TTL=64 Ping statistics for 192.168.8.102: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss), Approximate round trip times in milli-seconds: Minimum = 1ms, Maximum = 1ms, Average = 1ms The netbook is running Gentoo and is currently connected via wireless. My main PC is running Windows 7 however I get the same result no matter what PC I use on this network. Please see this example from a CentOS machine on the same network [root@tiger ~]# ping 192.168.8.102 PING 192.168.8.102 (192.168.8.102) 56(84) bytes of data. From 192.168.8.200 icmp_seq=2 Destination Host Unreachable From 192.168.8.200 icmp_seq=3 Destination Host Unreachable From 192.168.8.200 icmp_seq=4 Destination Host Unreachable --- 192.168.8.102 ping statistics --- 6 packets transmitted, 0 received, +3 errors, 100% packet loss, time 5000ms , pipe 3 If you need any more information or require logs or config files please let me know and any assistance is greatly appreciated. Additional info: No responses on TCP dump from the netbook. Same result when booting into Ubuntu from a USB key. No issue when using a wired Ethernet connection.

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• When running a shell script, how can you protect it from overwriting or truncating files?

  - by Joseph Garvin

  If while an application is running one of the shared libraries it uses is written to or truncated, then the application will crash. Moving the file or removing it wholesale with 'rm' will not cause a crash, because the OS (Solaris in this case but I assume this is true on Linux and other *nix as well) is smart enough to not delete the inode associated with the file while any process has it open. I have a shell script that performs installation of shared libraries. Sometimes, it may be used to reinstall versions of shared libraries that were already installed, without an uninstall first. Because applications may be using the already installed shared libraries, it's important the the script is smart enough to rm the files or move them out of the way (e.g. to a 'deleted' folder that cron could empty at a time when we know no applications will be running) before installing the new ones so that they're not overwritten or truncated. Unfortunately, recently an application crashed just after an install. Coincidence? It's difficult to tell. The real solution here is to switch over to a more robust installation method than an old gigantic shell script, but it'd be nice to have some extra protection until the switch is made. Is there any way to wrap a shell script to protect it from overwriting or truncating files (and ideally failing loudly), but still allowing them to be moved or rm'd? Standard UNIX file permissions won't do the trick because you can't distinguish moving/removing from overwriting/truncating. Aliases could work but I'm not sure what entirety of commands need to be aliased. I imagine something like truss/strace except before each action it checks against a filter whether to actually do it. I don't need a perfect solution that would work even against an intentionally malicious script. Ideas I have so far: Alias cp to GNU cp (not the default since I'm on Solaris) and use the --remove-destination option. Alias install to GNU install and use the --backup option. It might be smart enough to move the existing file to the backup file name rather than making a copy, thus preserving the inode. "set noclobber" in ~/.bashrc so that I/O redirection won't overwrite files

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• iptables management tools for large scale environment

  - by womble

  The environment I'm operating in is a large-scale web hosting operation (several hundred servers under management, almost-all-public addressing, etc -- so anything that talks about managing ADSL links is unlikely to work well), and we're looking for something that will be comfortable managing both the core ruleset (around 12,000 entries in iptables at current count) plus the host-based rulesets we manage for customers. Our core router ruleset changes a few times a day, and the host-based rulesets would change maybe 50 times a month (across all the servers, so maybe one change per five servers per month). We're currently using filtergen (which is balls in general, and super-balls at our scale of operation), and I've used shorewall in the past at other jobs (which would be preferable to filtergen, but I figure there's got to be something out there that's better than that). The "musts" we've come up with for any replacement system are: Must generate a ruleset fairly quickly (a filtergen run on our ruleset takes 15-20 minutes; this is just insane) -- this is related to the next point: Must generate an iptables-restore style file and load that in one hit, not call iptables for every rule insert Must not take down the firewall for an extended period while the ruleset reloads (again, this is a consequence of the above point) Must support IPv6 (we aren't deploying anything new that isn't IPv6 compatible) Must be DFSG-free Must use plain-text configuration files (as we run everything through revision control, and using standard Unix text-manipulation tools are our SOP) Must support both RedHat and Debian (packaged preferred, but at the very least mustn't be overtly hostile to either distro's standards) Must support the ability to run arbitrary iptables commands to support features that aren't part of the system's "native language" Anything that doesn't meet all these criteria will not be considered. The following are our "nice to haves": Should support config file "fragments" (that is, you can drop a pile of files in a directory and say to the firewall "include everything in this directory in the ruleset"; we use configuration management extensively and would like to use this feature to provide service-specific rules automatically) Should support raw tables Should allow you to specify particular ICMP in both incoming packets and REJECT rules Should gracefully support hostnames that resolve to more than one IP address (we've been caught by this one a few times with filtergen; it's a rather royal pain in the butt) The more optional/weird iptables features that the tool supports (either natively or via existing or easily-writable plugins) the better. We use strange features of iptables now and then, and the more of those that "just work", the better for everyone.

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• Legacy VB6 application under Win7 SQL error

  - by Shial

  We have a rather unfortunate legacy application at work, written originally in VB6 it predates anybody in our IT department by at least 5 years. We have a contracted developer for ongoing maintenance and where he can he rewrites sections over into .NET code (Not sure about his techniques here, this is a side job for his regular work as an IBM engineer) the application works fine (such as it is) under windows XP. We have only a couple of Windows 7 machines mainly for testing and this application seems to run into a wall. Things like the background not loading and SQL errors. This is even running under administrator. Running an SQL trace from the ODBC control panel shows several interesting things. It makes a connection to the database successfully initially where it runs a query to determine if it is running the correct version. This query works fine. 558-1af0 ENTER SQLExecDirectW HSTMT 0x020D7548 WCHAR * 0x04C8F0F0 [ 115] "SELECT count(*) c FROM tblSoftwareVersion WHERE fldSoftwareVersion = '123456' AND fldSoftwareName = 'Application.VB'" SDWORD 115 BMS 558-1af0 EXIT SQLExecDirectW with return code 1 (SQL_SUCCESS_WITH_INFO) HSTMT 0x020D7548 WCHAR * 0x04C8F0F0 [ 115] "SELECT count(*) c FROM tblSoftwareVersion WHERE fldSoftwareVersion = '123456' AND fldSoftwareName = 'Application.VB'" SDWORD 115 It then seems to drop its connection and can't find the ODBC connection despite the fact its connecting to the same DB. From the trace it looks like it configures the connection then it starts firing off SQLFreeStmt to unbind and close out then when in the application and it tries to do its thing there is no connection. 558-1af0 ENTER SQLFreeStmt HSTMT 0x020D7548 UWORD 2 <SQL_UNBIND> BMS 558-1af0 EXIT SQLFreeStmt with return code 0 (SQL_SUCCESS) HSTMT 0x020D7548 UWORD 2 <SQL_UNBIND> Then this happens when I try to do something that pulls data 558-1af0 ENTER SQLDriverConnectW HDBC 0x020DDA00 HWND 0x00000000 WCHAR * 0x73EF8634 [ -3] "******\ 0" SWORD -3 WCHAR * 0x73EF8634 SWORD -3 SWORD * 0x00000000 UWORD 0 <SQL_DRIVER_NOPROMPT> BMS 558-1af0 EXIT SQLDriverConnectW with return code -1 (SQL_ERROR) HDBC 0x020DDA00 HWND 0x00000000 WCHAR * 0x73EF8634 [ -3] "******\ 0" SWORD -3 WCHAR * 0x73EF8634 SWORD -3 SWORD * 0x00000000 UWORD 0 <SQL_DRIVER_NOPROMPT> DIAG [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified (0) Nearly all of my searching on this issue comes up with programming issues where the connection string has a problem. The only thing that is different in this particular scenario though is Windows 7, I know the connection string is fine since it works on the XP machines. The VB components are supposed to be still functional under Win7. My computer is running 32 bit win7 and my VP is running Win7 64 bit and both have the same problem so that can be ruled out. I have already tried reinstalling the SQL Native Client and the VB runtime as well as the application in question. Hopefully I can find a solution and not have to resort to using the XP VM.

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• Asus M4A79XTD-EVO / AMD Phenom II X4 965 Crashes / BSOD / Hangs / Restarts

  - by Tiby

  I'll try to be as concise as possible because I have a lot to say about my problem, but I'd rather say it when asked or when I feel it's necessary, just to make this initial reading clearer. For about a year and a half I have periods when my system has all the problems in the title (I'll use the word 'crash' for either one). I'll list some patterns and what I tried to do and what were the results, but the list is not exclusive: usually it crashes when a CPU-intensive operation is in progress, like a game or video encoding or HD movie rendering, but also sometimes crashes when I'm doing nothing after a first crash the system is very unstable and sometimes it crashes even during POST, or doesn't boot at all Some months ago I went to a local service (one that you just put your computer on the table and sit there with a guy and trying to figure out the problem, very rare these days) and they used OCCT and it crashed every time he changed some part to test it out (PSU, RAM, video card, HDD). The last one was the CPU. They changed the CPU and it didn't crash any more. Then when they put my CPU back, it also didn't crash. We figured that the trouble was the thermal paste (probably some 2 years old) because it was the only thing changed while testing. Up until 2 weeks ago, I haven't had any more problems. 2 weeks ago the problems reappeared. I changed again the thermal paste, put some Arctic Silver 5, and for about a week everything worked perfect (tried some games, video encoding, no more crashes). But again it started crashing in the same fashion as the first time. But now, instead, I figured out a very odd behaviour: when I start some of the apps above, in most cases it crashes if I start OCCT and turn on the CPU test, and run any of the programs above, it doesn't crash, even if the CPU is on 100% load (and 65-70 degrees Celsius temperature) if I shut down OCCT and continue using the programs, it crashes in a very short period of time (even if the CPU is on 5-10% load and 40 degrees) There are so many patterns and temporary solutions that I figured out in this year and a half period of time, that I can't include them all because I don't know which one are more relevant, but I'll happily provide any details you ask. My system is: CPU: AMD Phenom II X4 965 (3400 MHz - 125W) MB: ASUS M4A79XTD - EVO RAM: Corsair Vengeance 8 GB (2 x 4GB) CL8 1600MHz Video: HIS Radeon HD5770 1GB PSU: Corsair 750W HDD: Western Digital 1TB OS: Win 7 Enterprise 64 BIT (also tried with Windows Server 2008 R2 Trial and Win XP)

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• Impact of the L3 cache on performance - worth a dual-processor system?

  - by Dan Nissenbaum

  I will be purchasing a new high-end system, and I would like to have a better sense of whether a dual-processor Xeon system (I am looking at the new, high-end Xeon E5-2687W) might, realistically, provide a noticeable performance improvement due to the doubling of the L3 cache (20 MB per CPU). (This is in addition to the occasional added advantage due to the doubling of cores and RAM.) My usage scenario is, roughly, that I have many background applications running at any time - 3 or 4 data compression/backup applications, a low-impact web server, one or two virtual machines at any given time (usually fairly idle), and perhaps 20 utility programs that utilize a noticeable (but small) portion of the CPU cores. In total, when I am not actively using the computer, about 25% of the total CPU power is utilized in my current i7-970 6-core (12 thread) system. When I am doing routine work, the CPU utilization often exceeds 50%, and occasionally hits 75%-80%. The Xeon E5-2687W is not only a second-generation i7 (so should improve performance for that reason), but also has 8 cores (16 threads), rather than 6 cores. For this reason, I expect to run into the 75% CPU range even less frequently. Nonetheless, the ability to double the cores and the RAM is a consideration. However, in the end, I believe this decision comes down to whether the doubling of the L3 cache will provide a noticeable improvement. There are many benchmarks, and a lot of discussion, regarding CPU power. However, I find very little discussion of L3 cache utilization, and how increases in the L3 cache (such as doubling it with dual processors) affect performance. For example: If there are only two processes running, but each benefits from a large L3 cache (such as might be the case for background processes that frequently scan the file system), perhaps the overall system performance might noticeably improve with dual CPU's - even if only a single core is active on each CPU - due to each process having double the effective L3 cache. I am hoping that someone has a sense of the benefits of increasing (or doubling) the L3 cache size. Note: the CPU I am considering (the Xeon E5-2687W) has 20 MB L3 cache, so a system with dual CPU's would have 40 MB L3 cache.

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• Operative systems on SD cards

  - by HisDudeness

  I was getting some wild ideas the last days, like putting some operative systems into SD cards rather than on my hard drive. I'll go further into details now and explain what lead me to consider this probably abominable decision. I am on a laptop (that means I have a native SD-card reader) which is currently running a cross-distro setup, with a bunch of Linux systems (placed in dedicated ext4 logical partitions into a huge extended one) regulated by an unique GRUB. Since today, my laptop haven't even seen any Windows system with binoculars. I was thinking about placing all the os part of my setup into a Secure Digital to save all my 500 Gb Hard Drive for documents, music, videos and so on, and being able to just remove the SD and boot my system into another computer too, as well as having the possibility of booting other systems into mine by just plugging in another SD, without having to keep it constantly placed in my PC. Also, in the remote case in the near future I just wanted to boot Windows 8 in it, I read it causes major boot incompatibility issues with other systems by needing a digital signature in order for them to start. By having it in a removable drive, I could just get rid of it when I'm needing him and switch its card with Linux one, and so not having any obstacles to their boot. Now, my questions are: I know unlikely traditional rotating disk drives, integrated circuits ones have a limited lifespan in terms of cluster rewriting. Is it an obstacle to that kind of usage? I mean, some Ultrabooks are using SSD now, is it the same issue, or there are some differences between Solid State Drives and Secure Digitals in that sense? Maybe having them to store system files which are in fixed positions (making the even-usage of cluster technology useless) constantly being re-read and updated and similar things just gets them soon unserviceable, do it? Second question: are all motherboards and BIOSes able to boot from SDs just like they are from USB pen drives (I mean, provided card reader is USB-connected, isn't it)? Or can't bootloaders like GRUB be installed on SDs working? If they can't, is it a solution installing GRUB to MBR and making boot option pointing to SD? Will it work? Are there any other problems to installing OSs on a Secure Digital?

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• "Error 1067: The process terminated unexpectedly" when trying to install MySQL on Win7 x64.

  - by Gravitas

  Hi, I've run into a brick wall trying to install MySQL v5.5 on my machine. My PC is Windows 7 x64, Enterprise edition. MySQL installs fine, but when I run the "MySQL Instance Configuration Wizard", it pauses forever on the step "Start Service" (I can let it run for 30 minutes with no response). If I go into services, I see that the "MySQL" service hasn't started, and if I try to start it, it says "Windows could not start MySQL Service on Local Computer. Error 1067: The process terminated unexpectedly." I've tried the following: Turning off firewall. Uninstalling all antivirus software. Installing / reinstalling 32-bit version of MySQL. Installing / reinstalling 64-bit version of MySQL. Uninstalling, deleting the contents of "C:\program files\MySQL" and "C:\program files (x86)\MySQL", reinstalling. Checking to see that there is no rogue services named MySQL???? (from a previous install). Checking that port 3306 is not used by an alternate program. Changing the default port that MySQL uses. Checking for "my.ini" and "my.ini.cnf" in "C:\windows" (nothing there but that can cause a problem). Running both MySQL installer, and configuration wizard, in "Adminstrator mode". Turning off UAC. Installing with defaults, not changing anything. Rebooting my machine (about 6 reboots so far). Opening up port 3306 in the firewall (both TCP and UDP, inbound and outbound). Swearing at the klutz of a programmer who designed MySQL so you can't even install it (as if that would help!) My machine is working 100% in every other way. InfiniDB (a MySQL compatible database) installs 100%, as does Visual Studio 2010, Microsoft SQL Server, etc, etc. Your advice on how to work around this? p.s. Here is the screen it got stuck on for 15 minutes until I killed the process: Update 2010-12-20 Tried MySQL v5.1, it didn't work either. Its amazing - if you type "mysqld /?", or "mysqld -help", it doesn't give you any help. And, if you try to restart the service manually, it doesn't display any error messages. Could it be any more unhelpful? Update 2010-12-21 Installed MySQL 6.0 alpha, and it worked. However, I'd rather not use an alpha release, given that the "stable" release is anything but :( Update 2010-12-21 Found http://dev.mysql.com/doc/refman/5.1/en/windows-troubleshooting.html, dealing with troubleshooting under Windows. Discovered that you can generate an error log if the service doesn't start - see here: http://dev.mysql.com/doc/refman/5.1/en/error-log.html

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• Kernel-mode Authentication: 401 errors when accessing site from remote machines

  - by CJM

  I have several Classic ASP sites that use Integrated Windows Authentication and Kerberos delegation. They work OK on the live servers (recently moved to a Server 2008/IIS7 servers), but do not work fully on my development PC or my development server. The IIS on both machines were configured through an IIS web deployment tool package which was exported from an old machine; the deployment didn't work perfectly, and I had to tinker a bit to get the sites working. When accessing the apps locally on either machine, they work fine; when accessing from another machine, the user is prompted by a username/password dialog, and regardless of what you enter, ultimately it results in a 401 (Unauthorised) error. I've tried comparing the configuration of these machines against similar live servers (that all work fine), and they seem generally comparable (given that none of the live servers are yet on IIS7.5 (Windows 7/Server 2008 R2). These applications run in a common application pool which uses a special domain user as it's identity - this user has similar permissions on the live and development machines. On IIS6 platforms, to enable kerberos delegation, I needed to set up some SPNs for this user, and they are still in place (even though I don't believe they are needed any longer for IIS7+ due to kernel-mode authentication), Furthermore, this account is enabled for Kerberos delegation in Active Directory, as is each machine I am dealing with. I'm considering the possibility that the deployment might have made changes/failed to make changes to the IIS configuration thus causing this problem. Perhaps a complete rebuild (minus another web deployment attempt) would solve the problem, but I'd rather fix (thus understand) the current problem. Any ideas so far? I've just had another attempt at fixing this issue, and I've made some progress, but I don't have a complete fix...yet. I've discovered that if I access the sites via IP address (than via NetBIOS name), I get the same dialog, except that it accepts my credentials and thus the application works - not quite a fix, but a useful step. More interestingly, I discovered that if I disable Kernel-mode authentication (in IIS Manager Website Authentication Advanced Settings), the applications work perfectly. My foggy understanding is that this is effectively working in the pre-IIS7 way. A reasonable short-term solution, but consider the following explicit advice from IIS on this issue: By default, IIS enables kernel-mode authentication, which may improve authentication performance and prevent authentication problems with application pools configured to use a custom identity. As a best practice, do not disable this setting if Kerberos authentication is used in your environment and the application pool is configured to use a custom identity. Clearly, this is not the way my applications should be working. So what is the issue?

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• SMB returns the entire file instead of header info

  - by billdlawson

  Starting a section of code checks for access to many data files (flat files so each table is a file) and when I do a packet capture, in our capture only the header info is sent by the server to the client. However I have one Customer who is using a SAN that gets the whole file instead of just the header info,and besides just being slower, this is causing file access issues. They have already turned off OPLOCKS at the server and at the workstations. This is not client server. The data files and the application reside on the server but the users run the application locally via a shortcut with a mapped drive or UNC. So when I simply select an option that prompts for a vehicle number, not tryng to select a record but rather simply verify the datafiles are accessible, that window opens in 1-2 seconds for me. When they do the same thing it takes 6-15 seconds after there several users are running the program. Maximum number of users is 15. The program has a lot of small modules, 800 .cob modules. So it is very chatty but these are datafiles. We have Wireshark captures that show he's pulling the whole file and we're just getting the header. Thier capture vs ours. We suspect the SAN. Has anyone ever heard of a SAN improperly interpreting runtime requests? So an SMB request. This is Acucobol-GT (now Microfocus). The application is written in COBOL. This is not a new program just a new problem. This is one customer of over a thousand who are otherwise running smoothly and we are totally stumped. All XP users, the server is Windows 2003 (with Virtual server) and I don't yet know the SAN info. Also we have many installations running virtual servers but only few on SANs or we just don't know it. This is not a network throught put issue, the load is less than 5% on the server and theer are no timeout or retransmits. PS If it wasn't for Wireshark I'd still be chasing my tail. An application trace file on thier installation just looks like they run slower. If you want the Wireshark trace file I can make it available. Thanks in advance - Please excuse my verbosity (word?) but I'm not sure what's relavent.

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• GPU not powering on

  - by Lerp

  So I got home from work yesterday and went to turn my computer on as per usual to be greeted by this: The screens remained black, so I rebooted; I go as far as GRUB before my screens went black again. I rebooted again, they didn't turn on. I rebooted again, I got as far as the windows login screen. This time I unplugged it, opened it up and cleaned it but to no luck. The GPU was still being tempermental. I repeated the process of turning off and on several times until one time it work as normal. I happily played games for the rest of the night (5-6 hours?) thinking everything was jolly good now. Well I get home from work today and it is doing the SAME thing. Sometimes everything displays normally for a few seconds to minutes then the screens go black; then sometimes the screens don't come on at all. Summary and additional points Screens sometimes turn on before shortly turning off, sometimes they don't; I cannot seem to determine any pattern between when they do or do not turn off. The build has been working fine for about 8 months now so I know it's not hardware incompatibility. If I plug a monitor into the on board graphics I can use the PC normally (just in low graphics mode) I have two monitors and it's a case of they both turn on or not. So I think I can rule out the monitors being dead. I have tried replacing the GPU I have tried replacing the RAM I have tried flashing the CMOS I have tried cleaning the inside The GPU is a Radeon HD 7870 My questions Is my GPU dead? It's not very old and I would rather have a method of being certain it's the GPU before I fork out some money I can't really afford. I do not have a second PC here to test it in. If my GPU is dead why does it sometimes work and sometimes not? Update Okay, it was working again.. at least I thought it was. I left it running for 10-20minutes with the screens black. Turned it off and straight back on and it worked for all of 10minutes. I was then updating the post in joy thinking I could play some games for the rest of the night when BAM it went black again. So yeah, I don't know :C

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• WSUS is not using Akamai CDN for syncronisation source

  - by Geekman

  I've just installed a WSUS onto our network, and I'm currently doing the initial sync. I've found that WSUS does not seem to be talking to an Akamai cache, but rather with MS directly. This is contrary to what I've always thought regarding Windows Update traffic. Tcpdump of our WSUS server doing initial sync... As you can see it's speaking with 65.55.194.221. For me to speak to this IP, I have to go over international transit links. Which is of course not ideal. 8:42:31.279757 IP 65.55.194.221.https > XXXX.XXXX.XXXX.XXXX.50888: Flags [.], seq 4379374:4380834, ack 289611, win 256, length 1460 18:42:31.279759 IP 65.55.194.221.https > XXXX.XXXX.XXXX.XXXX.50888: Flags [.], seq 4380834:4382294, ack 289611, win 256, length 1460 18:42:31.279762 IP 65.55.194.221.https > XXXX.XXXX.XXXX.XXXX.50888: Flags [.], seq 4382294:4383754, ack 289611, win 256, length 1460 18:42:31.279764 IP 65.55.194.221.https > XXXX.XXXX.XXXX.XXXX.50888: Flags [P.], seq 4383754:4384144, ack 289611, win 256, length 390 18:42:31.279793 IP XXXX.XXXX.XXXX.XXXX.50888 > 65.55.194.221.https: Flags [.], ack 4369154, win 23884, length 0 18:42:31.279888 IP XXXX.XXXX.XXXX.XXXX.50888 > 65.55.194.221.https: Flags [.], ack 4377914, win 23884, length 0 18:42:31.280015 IP XXXX.XXXX.XXXX.XXXX.50888 > 65.55.194.221.https: Flags [.], ack 4384144, win 23884, length 0 And yet, if I ping download.windowsupdate.com it seems to resolve to a local (national) Akamai node, just fine: root@some-node:~# ping download.windowsupdate.com PING a26.ms.akamai.net (210.9.88.48) 56(84) bytes of data. 64 bytes from a210-9-88-48.deploy.akamaitechnologies.com (210.9.88.48): icmp_req=1 ttl=59 time=1.02 ms 64 bytes from a210-9-88-48.deploy.akamaitechnologies.com (210.9.88.48): icmp_req=2 ttl=59 time=1.10 ms Why is this? And how can I change that (if possible)? I know that I can manually specify a WSUS source to sync with instead of pick the default MS Update like I currently have... But it seems like I shouldn't have to do this. NOTE: I've haven't confirmed if a WUA speaks with Akamai, just looking at WSUS as all WUAs will use our internal WSUS from now on. We'll be looking to join an IX shortly with the hopes of peering with an Akamai cache and have very fast access to Windows Updates. Before I let this drive my motivations for an IX at all I want to first confirm it's actually possible for WSUS to speak with an Akamai cache. I know this is somewhat networking related, but I feel like it has more to do with WSUS than anything, so someone who knows WSUS better than me will likely be able to figure this out.

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• How to create NTFS partition in Linux to install Windows 7 from USB?

  - by Michal Stefanow

  I messed up with my computer and need help. Generally: install Windows 7 from USB. Problem: "setup was unable to create a new system partition" When first attempt to install Windows 7 failed I tried Linux live USB, installed distro to HDD, and erased all the existing partitions. Current state (fdisk -l): [writing from other computer so no copy and paste] /dev/sda1 305GB Linux /dev/sda2 7GB Extended /dev/sda5 7GB Linux Swam / Solaris To create a new, NTFS partition: fdisk /dev/sda n (for new) p (for primary) 3 (for partintion number) "No free sectors available" All the HDD was formatted couple of minutes before so there is a lot of free space but how to resize a parition? I cannot find an option for resizing in man fdisk. Some people say I should use gparted but my distro doesn't not contain this package. And my distro doesn't support wireless drivers so I have serious problems with downloading stuff. I tried also using cfdisk but any command results in: "cfdisk bad primary partition 1 partition ends in the final partial cylinder" I tried also removing partition 1 and then creating a new one (so there is no "no free sectors"). I'm receiving a warning: "Re-reading the partition table failed with error 16: Device or resource busy. The kernel still uses the old table. The new table will be used at the next reboot." After restating: "grub rescue, no known filesystem" It may indicate that some changes have been made BUT when running Windows 7 installed some another error: "Windows cannot be installed to Disk 0 Partition 1" More detailed: "Windows cannot be installed to this hard disk space. Windows must be installed to a partition formatted as NTFS." So formatting drive using Windows 7 installer BUT this time yet another error: "Setup was unable to create a new system partition or locate an existing system partition. See the setup log files for more information" Apparently I cannot access logs (how?) and I am back to drawing board with my live USB (this time showing partition as HPFS/NTFS). Any suggestions how to install Windows 7? Should I reinstall Linux to HDD, erase existing partitions once again, and use Parted rather than gparted (parted is included in the distro). Or maybe should I create another bootable USB such as PartedMagic to painlessly create partitions? I just want to install Windows 7 from USB, my laptop is semi-operational and I am ready to receive some help regarding fdisk and creating NTFS partitions. UPDATE: I did as suggested (removed all the partitions) and tried to install in unallocated space. Tried to create a new partition and format it. Same error: "setup was unable to create a new system partition" Came to the conclusion it may have something to do with TrueCrypt I have recently installed. Right now trying to FIX MBR (as I haven't got possibility to create rescue disc without optical drive)

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