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• Performance experiences for running Windows 7 on a Thin-Client?

  - by Peter Bernier

  Has anyone else tried installing Windows 7 on thin-client hardware? I'd be very interested to hear about other people's experiences and what sort of hardware tweaks they had to do to get it to work. (Yes, I realize this is completely unsupported.. half the fun of playing with machines and beta/RC versions is trying out unsupported scenarios. :) ) I managed to get Windows 7 installed on a modified Wyse 9450 Thin-Client and while the performance isn't great, it is usable, particularly as an RDP workstation. Before installing 7, I added another 256Mb of ram (512 total), a 60G laptop hard-drive and a PCI videocard to the 9450 (this was in order to increase the supported screen resolution). I basically did this in order to see whether or not it was possible to get 7 installed on such minimal hardware, and see what the performance would be. For a 550Mhz processor, I was reasonably impressed. I've been using the machine for RDP for the last couple of days and it actually seems slightly snappier than the default Windows XP embedded install (although this is more likely the result of the extra hardware). I'll be running some more tests later on as I'm curious to see particularl whether the streaming video performance will improve. I'd love to hear about anyone's experiences getting 7 to work on extremely low-powered hardware. Particularly any sort of tweaks that you've discovered in order to increase performance..

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• How to choose the most optimal RAID settings on PE2950

  - by javano

  I have some Dell PowerEdge 2950's with 4x 15k, 150GB Cheetah SAS drives in them. They are going to be VM hosts, CentOS running ESXi with Windows Server 2k8 guests. Some guests will be hosting IIS servers, and others MSSQL servers. I am trying to set the RAID virtual disks settings and can't decide which is more optimal given this situation; Read Policy: Out of Read-Ahead, No-Read-Ahead and Adaptive Read-Ahead, the default is Read-Ahead. I will be making large sequential writes initially, writing out blank images for virtual machine hard drives (lets say 30GBs from /dev/zero for example) so Read-Ahead seems good at first. But within the virtual machines reads could be random from anywhere within their file systems as they are IIS and MSSQL servers, so perhaps No-Read-Ahead is a better idea? Now I think Adaptive Read-Ahead would be better then as a compromise but I don't know much about this option, how does it compare in performance to the others? Write Policy: write-back caching, write-through caching, the default is write-back caching. The default of write-back caching is safer than write-through caching but at a performance expense. My thinking here is that in the event of power loss for example, it seems more likely in my head (this is why I need some clarification!) that damage will occur to a guest VM with write-back caching enabled, so I should favour write-through? I have searched around and there is obviously no definitive answer, so I would like to find out what is best for my situation.

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• How to calculate RAM value on performance per dollar spent

  - by Stucko

  Hi, I'm trying to make decisions on buying a new PC. I have most specifications (processor/graphic card/hard disk) pin-downed except for RAM. I am wondering what is the best RAM configuration for the amount of money I'm spending. As the question of best is subjective, I'd like to know how would I calculate the value of RAM sticks sold. 1.(sample)The value of amount of memory: 1) CORSAIR PC1333 D3 2GB = costs $80 2) CORSAIR PC1333 D3 4GB = costs $190 would it be better to buy 2 of item 1) instead of 1 of item 2) ?? Although I would normally choose to have 1 of 2) as the difference is only (190-(80*2)) = 30 as I would save 1 DIMM slot, What I need is the value per amount: 1) 80/ 2 = $40 per 1GB 2) 190/ 4 = $47.5 per 1GB 2. The value of frequency: 1) CORSAIR PC1333 4GB = costs 190 2) CORSAIR PC1600C7 4GB = costs 325 Im not even sure of the denominator ... $ per 1 ghz speed? 3. The value of latency: 1) CORSAIR CMP1600C8 8-8-8-24 2GBx3 (triple channel) = costs 589 2) CORSAIR CMP1600C7D 7-7-7-20 2GBx3 (triple channel) = costs 880 Im not even sure of the denominator ... $ per 1 ghz speed? Just for your information i'd like to get the best out of the money im going to spend to put on a 6 DIMM slot i7core motherboard.

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• How to get nginx to pass HTTP_AUTHORIZATION header to Apache

  - by codeinthehole

  Am using Nginx as a reverse proxy to an Apache server that uses HTTP Auth. For some reason, I can't get the HTTP_AUTHORIZATION header through to Apache, it seems to get filtered out by Nginx. Hence, no requests can authenticate. Note that the Basic auth is dynamic so I don't want to hard-code it in my nginx config. My nginx config is: server { listen 80; server_name example.co.uk ; access_log /var/log/nginx/access.cdk-dev.tangentlabs.co.uk.log; gzip on; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_read_timeout 120; location / { proxy_pass http://localhost:81/; } location ~* \.(jpg|png|gif|jpeg|js|css|mp3|wav|swf|mov|doc|xls|ppt|docx|pptx|xlsx|swf)$ { if (!-f $request_filename) { break; proxy_pass http://localhost:81; } root /var/www/example; } } Anyone know why this is happening? Update - turns out the problem was something I had overlooked in my original question: mod_wsgi. The site in question here is a Django site, and it turns out that Apache does get the auth variables passed through, however mod_wsgi filters them out. The resolution is to use: WSGIPassAuthorization On See http://www.arnebrodowski.de/blog/508-Django,-mod_wsgi-and-HTTP-Authentication.html for more details

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• Program for remove exact duplicate files while caching search results

  - by John Thomas

  We need a Windows 7 program to remove/check the duplicates but our situation is somewhat different than the standard one for which there are enough programs. We have a fairly large static archive (collection) of photos spread on several disks. Let's call them Disk A..M. We have also some disks (let's call them Disk 1..9) which contain some duplicates which are to be found on disks A..M. We want to add to our collection new disks (N, O, P... aso.) which will contain the photos from disks 1..9 but, of course, we don't want to have any photos two (or more) times. Of course, theoretically, the task can be solved with a regular file duplicate remover but the time needed will be very big. Ideally, AFAIS now, the real solution would be a program which will scan the disks A..M, store the file sizes/hashes of the photos in an indexed database/file(s) and will check the new disks (1..9) against this database. However I have hard time to find such a program (if exists). Other things to note: we consider that the Disks A..M (the collection) doesn't have any duplicates on them the file names might be changed we aren't interested in approximated (fuzzy) comparison which can be found in some photo comparing programs. We hunt for exact duplicate files. we aren't afraid of command line. :-) we need to work on Win7/XP we prefer (of course) to be freeware TIA for any suggestions, John Th.

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• 100% iowait + drive faults in dmesg

  - by w00t

  Hi, I have a server on which resides a fairly visited web app. It has a raid1 of 2 HDDs, 64MB Buffer, 7200 RPM. Today it started throwing out errors like: kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen kernel: ata2.00: cmd b0/d0:01:00:4f:c2/00:00:00:00:00/00 tag 0 pio 512 in kernel: res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) kernel: ata2.00: status: { DRDY } kernel: ata2: hard resetting link kernel: ata2: SATA link up 3.0 Gbps (SStatus 123 SControl 300) kernel: ata2.00: max_sectors limited to 256 for NCQ kernel: ata2.00: max_sectors limited to 256 for NCQ kernel: ata2.00: configured for UDMA/133 kernel: sd 1:0:0:0: timing out command, waited 7s kernel: ata2: EH complete kernel: SCSI device sda: 976773168 512-byte hdwr sectors (500108 MB) kernel: sda: Write Protect is off kernel: SCSI device sda: drive cache: write back All day long it has been in load higher than 10-15. I am monitoring it with atop and it gives some bizarre readings: DSK | sda | busy 100% | read 2 | write 208 | KiB/r 16 | KiB/w 32 | MBr/s 0.00 | MBw/s 0.65 | avq 86.17 | avio 47.6 ms | DSK | sdb | busy 1% | read 10 | write 117 | KiB/r 17 | KiB/w 5 | MBr/s 0.02 | MBw/s 0.07 | avq 4.86 | avio 1.04 ms | I frankly don't understand why only sda is taking all the hit. I do have one process that is constantly writing with 1-2megs but what the hell.. 100% iowait?

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• DriveImage XML fails with a Windows Volume Shadow Service Error

  - by ssvarc

  I'm trying to image a SATA laptop hard drive, using DriveImageXML, that is attached to my computer via a USB adapter. I'm running Win7 Ultimate 64 bit. DriveXML is returning: Could not initialize Windows Volume Shadow Service (VSS). ERROR C:\Program Files (x86)\Runtime Software\Drivelmage XML\vss64.exe failed to start. ERROR TIMEOUT Make sure VSSVC.EXE is running in your task manager. Click Help for more information. VSSVC.EXE is running in Task Manager, as is VSS64.exe. Looking at the FAQ on the Runtime webpage this turned up: Please verify in Settings-Control Panel-Administrative Tools-Services that the following services are enabled: MS Software Shadow Copy Provider Volume Shadow Copy Also make sure you are able to stop and start these services. Possible reasons for VSS failures: For VSS to work, at least one volume in your computer must be NTFS. If you use only FAT drives, VSS will not function. The required NTFS volume does not need to be identical with the volume you want to image. You should make sure that VSSVC.EXE is running in your task manager. If the problems persist, registering "oleaut.dll" and "oleaut32.dll" using "regsvr32" might help. Both of those services are running and can be started and stopped without issue. Using "regsvr32" to register ""oleaut32.dll" returns successful, but "oleaut.dll" returns: The module "oleaut.dll" failed to load. Make sure the binary is stored at the specified path or debug it to check for problems with the binary or dependent .DLL files. The specified module could not be found. Some other information that might be relevant. Browsing to the drive is successful, but accessing certain folders returns an "access" error. Windows runs a permissions adder that adds the current user profile to the NFTS permissions. Could this be the cause of the issue? DriveImage XML is running as Administrator. Thoughts?

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• Finding a shared HDD attached to the network from my F-13 machine

  - by Ramy

  Sorry for the slew of n00bie questions, but here is one more. I recently partitioned my 1.5TB harddrive according to this question I then bought this to attach the harddrive to my network. The problem is, how do I navigate to the hard drive to move files over the network to the HDD. should this be moved to serverfault? update: the disk isn't even showing up when i call "fdisk -l" (as root). How can I mount it if I can't even find it? [root@Moonface ~]# /sbin/fdisk -l Disk /dev/sda: 160.0 GB, 160041885696 bytes 255 heads, 63 sectors/track, 19457 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00018598 Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 19458 155777024 8e Linux LVM Disk /dev/dm-0: 53.7 GB, 53687091200 bytes 255 heads, 63 sectors/track, 6527 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-0 doesn't contain a valid partition table Disk /dev/dm-1: 4764 MB, 4764729344 bytes 255 heads, 63 sectors/track, 579 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-1 doesn't contain a valid partition table Disk /dev/dm-2: 101.0 GB, 101032394752 bytes 255 heads, 63 sectors/track, 12283 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/dm-2 doesn't contain a valid partition table

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• Dual Monitor setup issues between laptop and external led monitor

  - by Julian

  I have two challenges. Monitor will not connect to laptop through HDMI Watching HD video content causes the laptop to sometimes turn off expecially when I'm streaming from tekzilla.com Setup. I got my new HP 2311x LED LCD monitor this week and I have it running as the main monitor extended by the 15 inch screen on my Dell Studio 1558. Right now I have to connect the external monitor through VGA. For the HDMI connection issue. I suspect that either the appropriate drivers are not installed because I don't see any hdmi device in the device manager. I've checked and I don't see any hdmi specific drivers listed online. For the shut down issue, I suspect the laptop might be overheating. Not sure why it would. It never did that while I watched movies on my laptop's default screen. My Laptop Configuration: 15" led lcd screen at 1366 x 768 intel i5 processor integrated graphics card 4 GB DDR3 RAM 500 GB hard drive I've tried everything from switching the source on my monitor to hdmi to start up combinations and nothing has worked. What could be the issue and how do I solve it?

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• Mac OS X Lion (10.7) Drive Encryption

  - by Skoota

  My iMac has two drives (a 256 GB solid-state drive, and regular 2 TB hard drive). The Mac OS X Lion system is installed on the solid-state drive and, like many other users, I have moved my user profile folder onto the secondary 2 TB drive. However, as you may be aware, FileVault 2 on Mac OS X Lion (10.7) only encrypts the system drive. This leaves my data drive (containing my user profile folder, with all of my data) unencrypted. I am aware that work arounds for this issue exist (such as https://github.com/jridgewell/Unlock) but I am not happy with the results since they involve decrypting the data drive on startup using a LaunchDaemon (before any users have logged into the computer) essentially meaning that any user who logs onto the computer will see the unencrypted drive. I would like a method which will only unencrypted the data when an authorised user logs into the computer. As such, is there a way to do one of the following? Encrypt the entire data drive and only decrypt the drive when an authorised user logs into the computer. This would be equivalent behaviour to the Lion FileVault 2 feature, but on a secondary drive rather than the system drive. Encrypt only the user profile folder on the data drive, and only decrypt the folder when the user logs into the computer. This would be equivalent to the behaviour of FileVault 1 on previous versions of Mac OS X? I am happy to pay for a commercial third-party product that provides the required feature(s), but I have not yet been able to find one. Thanks in advance for any assistance.

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• Degraded RAID-5 array with lvm2 lost superblock and partition table

  - by Fred Phillips

  I have a RAID-5 array of 4x1TB hard disks with one lvm2 partition on Ubuntu Linux 10.04 LTS. One of the disks has failed. I have re-assembled the array without this failed disk but now mdadm --examine claims the array has no superblock and fdisk says it has no partition table. What can I do to recover the data? # mdadm -D /dev/md0 /dev/md0: Version : 1.2 Creation Time : Sat Mar 5 14:43:49 2011 Raid Level : raid5 Array Size : 2930276352 (2794.53 GiB 3000.60 GB) Used Dev Size : 976758784 (931.51 GiB 1000.20 GB) Raid Devices : 4 Total Devices : 4 Persistence : Superblock is persistent Update Time : Sat Mar 5 15:06:49 2011 State : clean, degraded Active Devices : 3 Working Devices : 3 Failed Devices : 1 Spare Devices : 0 Layout : left-symmetric Chunk Size : 512K Name : boba:1 (local to host boba) UUID : 52eb4bc9:c3d8aab5:e0699505:e0e1aa05 Events : 18 Number Major Minor RaidDevice State 0 8 1 0 active sync /dev/sda1 1 8 65 1 active sync /dev/sde1 2 8 49 2 active sync /dev/sdd1 3 0 0 3 removed 4 8 17 - faulty spare /dev/sdb1 # mdadm --examine /dev/md0 mdadm: No md superblock detected on /dev/md0. # fdisk -l /dev/md0 Disk /dev/md0: 3000.6 GB, 3000602984448 bytes 2 heads, 4 sectors/track, 732569088 cylinders Units = cylinders of 8 * 512 = 4096 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 524288 bytes / 1572864 bytes Disk identifier: 0x00000000 Disk /dev/md0 doesn't contain a valid partition table # cat /proc/mdstat Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10] md0 : active raid5 sdb1[4](F) sda1[0] sdd1[2] sde1[1] 2930276352 blocks super 1.2 level 5, 512k chunk, algorithm 2 [4/3] [UUU_] unused devices: <none>

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• Hyper-v on 2012R2 startup gen1 vm causes the host to freeze up

  - by sputnik

  I've searched a lot to resolve the following issue, but nothing helped me. My problem is, that starting up a first-gen vm locks up the whole host. Only a hard reset helps. Second-gen vm starts and runs perfectly. The freezes happened on 3 different vms. FreeBSD, Ubuntu, Windows Server 2008R2, while Windows 8.1 on second gen config works perfectly. Im using this pc mainly as a workstation. No eventlog errors nor dumps are generated. My system: Windows Server 2012R2 FX-8350, non OC ASRock 870 Extreme R2 (Crappy board imho) 32GB DDR3 1866@1600 (My motherboard, against the "support" for 1866ram won't work with full speed) 120GB SSD 4.5TB Storage space device I dont think that its due to my system, because vmware workstation was running without problems. Did I forget to configure something? Any help is appreciated. P.S: Even deactivating C1E, C6, C&Q didnt work. P.P.S: With no virtual network adapter set, the system still locks up. Creating a first gen vm without any hdds and network and launching works. Attaching a boot dvd causes the host to freeze. The host freezes as the gen1 vm begins to boot, doesn't matter if from dvd or hdd

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• Is it possible to boot Windows 7 from when you're harddrive's partition with two OSes?

  - by Muhammad

  I have a PC with a hard drive that's partition into home directories for Windows 7 and Ubuntu. I primarily use Windows 7 and occasionally (once a week) use Ubuntu. When I boot up my computer, I usually get taken to a boot menu that includes about 5 different options: 3 are for Ubuntu's configurations, one's for swap, and the forth is for Windows 7. Then after I select Windows 7 or Ubuntu from this menu, I get taken to another menu that again asks me for Windows 7 or Ubuntu. This time, there's only 2 options, Windows 7 and Ubuntu. [Side note: out of experience I realized most boot menus are timed and so are these.] So if I ever turn my computer on without actually sitting in front of it for a few minutes, it boots into Ubuntu. I'm trying to figure out what I need to do so I can first get rid of the 2 boot menus. And if possible, I'm looking for help changing my boot options where I can load up Windows 7 (even with the boot menu wait of about 30 seconds). My harddrive's partition's laid out like this: Windows 7 (C partition) Multimedia (D partition, I just use this for backup/non-OS stuff) Ubuntu (home directory) Swap Is there any other information I need to provide?

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• Reliable applicance for routing IT emergency calls (SIP and ISDN)

  - by chiborg

  We have a fairly big IT installation and our IT staff needs to be reachable 24/7. At the moment we have the following setup for "emergency" calls to our IT staff on our main Asterisk box: An incoming emergency number (connected via SIP trunk and a BRI card in case the SIP trunk goes down). When the number is called during the office hours, all the SIP phones of the IT staff are called simultaneously. When the number is called out of office hours interface, a list of mobile phone numbers is called, one after another until someone picks up. The list can be changed by the IT staff via command line script. The setup works well, but the Asterisk is heavily used in a call center, has experienced some outages and misconfigurations, each of them bringing down the IT emergency number. So we'd like to put the IT emergency call functionality on a separate device. This does not need to be a big server, it even does not need to be Asterisk, it only has one purpose and should do it reliably. It should be very low-maintenance. Any suggestions for hard- and software?

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• Apache multiple vhost logs, stored locally and sent to remote logstash

  - by benbradley

  I'm investigating centralised logging and it seems there's so many different ways this can be done. I don't want to run logstash as a log "sender", preferring to keep the web servers as lean and simple possible. So that means either using syslog, syslog-ng or the one I'm testing now, rsyslog. But I would like to have separate vhost log files on the web server, in addition to these logs being sent to a remote log collector. I've tested rsyslog using the imfile module to watch the Apache log files, but this means I have to hard-code each vhost log file into my rsyslog.conf. Not ideal as people will invariably forget when they add/remove sites on the server. The reason I'm using rsyslog's imfile is that Apache doesn't appear to let you log to file and syslog. And I want to keep vhost-specific log files on the web server. So how can I do this? Is there a way of having rsyslog produce local log files and forward the logs to a remote collector? I am prepared to change my Apache config to log to a single access/error log for all vhosts, so long as there are vhost-specific log files produced somewhere on the web server machine. I just don't want to lose any logging info if the remote log collector can't be contacted for any reason. Any comments/suggestions? Cheers, B

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• Hardware issue: computer plays beep sounds at startup, and then turns off

  - by Darkkurama

  Turns out that after moving, my computer got damaged somehow. I installed my computer 2 days ago. I didn't check the state of the hardware parts and turned the pc on recklessly, not realizing that the cpu fan was dettached from the cpu. After this I reattached the fan. The computer worked kind of faulty after that, because at the time of startup, it would play a long beep (different from the normal beep) and won't display anything. I tried restarting after this incident and it got fixed (don't know how, but it did), and I was even able to play some videogames for some hours (more than 5). This morning I tried to get this issue sorted out by checking again the cpu and in general, the connections, and for my surprise, at the time of turning it on again, the computer wouldn't boot at all. I reapplied some thermal paste to the cpu and fan, but got no results (I did this because the old paste was very badly distributted along the surface of both cpu and fan). Now every time I turn it on, the computer acts randomly: sometimes at startup, it plays a long continous beep and then turns off. one time it played a long continous beep and got to the windows password input screen, but then it turned off More frequently, I turn it on and after some seconds, it turns off without any sound. You can check this video I recorded, which features how the computer behaves most of the time Another one I tried troubleshoting it myself by disconnecting my graphic card, rams, HDD and even the cpu and its fan with no result. Computer specs: Intel Core 2 Quad Q6600 processor, Nvidia xfx gtx 260 black edition, 4 GB ram, 500 GB hard drive, Windows 7 64 bit

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• CentOS Installation on a Cisco MCS 7800

  - by William

  I'm having some problems installing CentOS 5.5 Final (i386) onto my server, a Cisco MCS 7800. The problem comes very early into the installation. When the welcome screen comes up and gives you the option on how to boot into the DVD, I'll press enter to go into the graphical installer. The screen will then have a blinking cursor in the top left of the screen and will never go away (I thought that it just might need time but I let it sit for over 5 hours). I then booted into it again and tried using Linux Text thinking it was a problem with the graphical installer. That didn't work, same problem. Then I tried a DVD of RHEL 5 and got the same problem, both graphical and Linux text. At this point I think it's a hardware problem. The server has 2GB of ECC RAM, 1 Pentium 4 CPU @ 3.06GHZ and 2 WD Hard Drives (80GB) configured for RAID 0. (There is also an option in the BIOS for what OS type and that is set to Linux.) If anyone has any idea what is going on, it would be helpful. Edit Typing "text" doesn't change a thing. Still stuck at the blinking cursor. I looked it up and it's really the same thing as typing "linux text", which as stated in the first part of my question, I've already done.

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• Laptop Acer Travelmate 4050 takes over 10 Mins to POST

  - by Belliez

  Hi, I am a computer tech and have received a laptop for repair. I noticed when I turned it on the laptop would not do anything for a min or two (the fan would run up and stop, power led would shine and some cd rom activity then stop). It would sit there with a black screen. Suddenly after a random number of minutes (between 1-20mins!) the Acer BIOS screen would display and POST would happen before booting into Windows XP. It has frozen in XP at various times and pointed towards a CPU fault and over heating. The fan was on its last legs, sounded like a car engine, so I replaced this. Still same issues. I next replaced the CPU like for like. Same problems. Also applied new thermal paste between the cpu and heatsink, when running the fan kicks in occasionally (not as often as I thought it would) and I left it playing mp3, online radio and updating to service pack 3 and it wouldnt freeze. shutting down ok, cold start, not ok. Waits again before showing the BIOS screen. The hard disk was also making a screaming noise (SMART test and chkdsk passed) but I also replaced this. The laptop powers up with and without the battery so dont think its a battery issue. Running out of ideas and wondered if anyone had any advice. Thanks

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• Understanding NFS4 exports and pseudofilesystem

  - by Trevor Harrison

  I think I understand the way pre-NFS4 exports work, specifically the namespace of the exported point. (ie. export /mnt/blah on server, use mount server:/mnt/blah /my/mnt/point on client) However, I'm having a hard time wrapping my head around NFS4 exports. What I've been able to gather so far is that you export a 'root' by marking it with fsid=0, which you then import on the client side by referring to it as '/'. (ie. exportfs -o fsid=0 /mnt/blah on server, mount server:/ on client) However, after that, it gets a little weird. From my playing around, it seems I can't export anything else thats not under /mnt/blah. For example, exportfs /home/user1 fails when trying to mount from the client unless /mnt/blah/home/user1 exists on the server. If this is the case, what is the difference between exportfs /mnt/blah/subdir1 on server and mount server:/subdir1 on client and just skipping the exportfs and mounting whatever subdir of /mnt/blah you want? Why would you need to export anything other than the root? Its all in the same namespace anyway.

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• Cannot set video resolution above 640x480 after installing Windows XP SP2

  - by waanders

  I've installed Windows XP SP2 on a computer (there was not SP at all). Now the display settings are set back to 640x480 and 4 bits colors. And I can't change it, it's the only option in Settings tab of the Display dialog of Windows. The screen look awful now, how can I solve this problem? UPDATE: Seems to be a problem with the video driver (thanks @Karan and @Hennes). I did run Speccy (PC-Wizard freezes the computer) and this is a part of the log file: Summary Operating System Microsoft Windows XP Professional 32-bit SP3 CPU Intel Celeron Willamette 0.18um Technology RAM 512 MB DDR @ 133MHz (2.5-3-3-6) Motherboard COMPAQ 0838h (FC-478) Graphics Standard Monitor (640x480@1Hz) Hard Drives 19.0GB Maxtor 2B020H1 (PATA) Optical Drives No optical disk drives detected Audio No audio card detected ... Graphics Monitor Name Standard Monitor on Current Resolution 640x480 pixels Work Resolution 640x450 pixels State enabled, primary Monitor Width 640 Monitor Height 480 Monitor BPP 4 bits per pixel Monitor Frequency 1 Hz Device \\.\DISPLAY1 OpenGL Version 1.1.0 Vendor Microsoft Corporation Renderer GDI Generic GLU Version 1.2.2.0 Microsoft Corporation Values GL_MAX_LIGHTS 8 GL_MAX_TEXTURE_SIZE 1024 GL_MAX_TEXTURE_STACK_DEPTH 10 GL Extensions GL_WIN_swap_hint GL_EXT_bgra GL_EXT_paletted_texture GL_EXT_bgra

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• How to move my data from my old MacBook Pro to my new one?

  - by Tim Büthe

  I just purchased a new MacBook Pro and already got an 2008 model. I wonder how I move all my data over to the new one. My first idea was, to use my Time Machine backup and restore from it, which seems to be a good idea and should work just fine regarding to this link: http://blog.duncandavidson.com/2008/01/restoring-from-time-machine.html. But, since my current MacBook got older Software on it, like iLife '08 instead of iLife '09 I would have to upgrade this afterwards. Is this correct, or does Time Machine does some magic to exclude well known software? And is it possible to reinstall or upgrade iLife with the included installation DVDs? My second idea is, to just swap the hard drives instead of using the Time machine backup. If it is not too complicated to remove the hdd, this should be the fastest way. This also has the benefit, that the 2008er MacBook then contains a brand new installation and I don't have to remove all my stuff or reinstall Mac OS before I give it away. My question on that second idea would be: does snow leopard handle this stuff correctly? I reboot with the new hardware and all just works fine? So in a nutshell: What would you do: restore from backup or swap drives? And what about the new software?

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• Do I need to restart my server after editing fstab and mtab?

  - by jaypabs

  I'm just wondering if I need to restart my server after editing fstab and mtab. I changed something in this file manually due to problem with awstats report. I am using ISPConfig 3 with the help of the tutorial from howtoforge. But due to removing/deleting of some account, the configuration of fstab and mtab messed up. I also ask this question at howtoforge forum but until now no one has answered. If you'd like to read my question please visit it here. I tried very hard to fix the problem w/o luck. Update: Here's what happen to my fstab: Before the value was (I omitted the other): /var/log/ispconfig/httpd/mydomain.com /var/www/clients/client1/web1/log none bind,nobootwait 0 0 /var/log/ispconfig/httpd/example.com /var/www/clients/client1/web2/log none bind,nobootwait 0 0 So I changed it to the correct path: /var/log/ispconfig/httpd/mydomain.com /var/www/clients/client1/web2/log none bind,nobootwait 0 0 /var/log/ispconfig/httpd/example.com /var/www/clients/client1/web3/log none bind,nobootwait 0 0 I also found mtab to have the same value as above that's why I edited it manually. from: /var/log/ispconfig/httpd/mydomain.com /var/www/clients/client1/web1/log none rw,bind 0 0 /var/log/ispconfig/httpd/example.com /var/www/clients/client1/web2/log none rw,bind 0 0 to: /var/log/ispconfig/httpd/mydomain.com /var/www/clients/client1/web2/log none rw,bind 0 0 /var/log/ispconfig/httpd/example.com /var/www/clients/client1/web3/log none rw,bind 0 0 I edited those value because the correct path of mydomain.com and example.com should be under web2 and web3 folder respectively. As of now the log of example.com is pointed to: /var/www/clients/client1/web2/log when it should be: /var/www/clients/client1/web3/log So I am thinking that this is because of fstab and mtab. Please guide me how to point the log correctly to it's default directory. I explain the scenario one by one at this link. to dawud: Based on your example mount -o remount,noexec /var, should I run mount -o remount,noexec /var/log/ispconfig/httpd/example.com?

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• Can Vista Windows Explorer be repaired/fixed?

  - by gurun8

  I'm running Windows Vista Home Premium on a Sony Vaio laptop. I think somehow my Windows Explorer has become corrupted. I don't recall any certain inciting incident like installing an unreputable 3rd party app or hardware failure but just recently my system won't wake after it's been left idle longer that 20 minutes and goes to sleep. I've also had problems launch certain apps, like Adobe InDesign CS3, that just basically freeze the system but leave mouse movements functioning for a short time before freezing the entire system which requires a hard reboot to resolve the freeze. The system seems to run normally when used but I fear there's a looming possibility that this is a house of cards and will all come crashing down soon. My question is this, can Windows Explorer be repaired/fixed? Before reformatting the system and starting over, which is most likely what I'm going to be forced to do, I'd like explore (no pun intended) my options in fixing the problem with a patch or reinstall or something of that nature. Reformatting my system will eat up a day or two of my time and I just don't have the time to spare right now.

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• HP G61 Laptop wont boot- display stays off, caps and num lock indicators blink repeatedly

  - by Benguy12

  I had my HP G61 laptop running in sleep for a while. When I came back to it about a half-hour later, it was no longer in sleep mode - the power light and the Wi-Fi indicator light were on (I keep Wi-Fi off becuase I use a wired connection) - but nothing was showing on screen. In fact, the display wasn't even turned on. So I let it sit for about 10 minutes but nothing happened. I did a force shut down and rebooted. Instead of a normal boot, the display didnt turn on, the Wi-Fi indicator was off, and the Caps Lock and Num Lock lights just blinked repeatedly. On the external keyboard i use, none of the light indicators were blinking or even on. I tried force shut-down again 10 times, then unplugged all connections except for the power cable (my laptop battery dosent hold a charge for more than 2 minutes, so I always must have a wall connection) and tried to boot again but still nothing happened. I unplugged the battery and even then nothing happened. I also tried booting with the disk drive open, and then with it closed again. On the time it was closed, I was able to successfully boot into Windows, but recieved a "Windows did not shut-down sucessfully" notice. Does anybody know why this may have happened? My PC's specs: Windows 7 Home Premium, 64-bit 4GB of physical RAM, 8GB of vRAM (on a flash drive) AMD Vision x64 processor (don't know any other specs about it) ATI Radeon graphics card, 392 MB DVD-R/W lightscribe drive 2 External hard-disks (first one is 1.5TB, second one is 1TB) custom boot-screen and boot-annimation Standard BIOS apps running before sleep: firefox 10.4 itunes 10.6 adobe photoshop extended CS5.1 rockstar games social club (running in background) microsoft powerpoint 2010 professional edition google chrome I was NOT running Aero or any fancy themes - I was using the normal windows classic theme. I have a desktop icon manager application called Stardock Fences that was also running (it runs as a service/process).

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• Computer resetting semi-randomly

  - by Peter

  Hi, I'm having a problem with my desktop whereby it sometimes resets itself semi-randomly. For example, I'll switch it on, it'll boot an OS and shortly after getting to the desktop it will immediately reset with no warning. The time isn't consistent - sometimes it does it before reaching login. I'm pretty sure it's not an OS thing; have tried Ubuntu and a Windows install and both exhibit it. It also doesn't appear to be heat-related because sometimes it appears to be able to "get past" it and will then run stably even under load; if anything it seems to be worse from a cold start. My gut feeling is some kind of power issue but I'm clutching at straws a little. Any suggestions on how I could go about testing it or trying to narrow the problem down would be appreciated. The machine is four years old now so while I can replace components if needed, it's not worth enough that I'm comfortable buying new parts without being pretty confident that they'll fix the problem. Thanks in advance for any help :) Edit: Okay, the motherboard is a MSI K8N SLI; CPU is an Athlon64 X2 4200+. Has one video card, a GeForce 7800GT. 1GB RAM, not sure of brand; 3 hard drives, two SATA and one PATA. Flashed motherboard to latest BIOS some time ago. Edit the Second: I thought I'd narrowed it down to the PSU for a while, but then it recurred again. I ended up pulling everything out but CPU, RAM and motherboard and it still seems to be stuffed (if anything, it's gotten worse in the last couple of days). I assume it's one of those three components, but the machine is old enough that I don't really want to spend money replacing any of them. So thanks for everyone's suggestions; much appreciated!

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