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• How to setup email server in ubuntu 12.04LTS(debian 7 wheezy/sid) running on linode vps

  - by shihon

  I am working on email server, since i tried several times to create email server on ubuntu12.04LTS with postfix + dovecote + postfixadmin + courier + clamav + spamassassin. But everytime i install these packages i face new problems, like mails send to localhost users and found in users maildir. But I can't determine how to configure/setup for send an email to external smtp like gmail, yahoo. The most worst thing i can't determine how to use sasl, because i am not using SSL so it is not worthy for my domain. This is so complicated, i search everywhere on google: links are https://help.ubuntu.com/community/PostfixCompleteVirtualMailSystemHowto http://www.starbridge.org/spip/spip.php?article1&lang=fr http://knopix.wordpress.com/2008/01/16/postfixadmin-postgresql-courier-squirrelmail-on-debian-etch-howtotutorial/ http://flurdy.com/docs/postfix/ Is there any article for install email server on ubuntu 12.04LTS. Please help me to understand these things.

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• VIsual Studio SP1 Fatal Installation Error

  - by user39593

  I have visual studio 2008 professional installed. I want to install SP1. When I try and install SP1 the following happens. MSI (s) (20:E4) [15:40:00:165]: Product: Microsoft Visual Studio 2008 Professional Edition - ENU - Update 'KB945140' could not be installed. Error code 1603. Additional information is available in the log file C:\Users\bjbell\AppData\Local\Temp\Microsoft Visual Studio 2008 SP1_20100609_151708728-Microsoft Visual Studio 2008 Professional Edition - ENU-MSP0.txt. My machine is running Windows 7 Enterprise 64bit.

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• Can't boot after compiling 3.1 kernel, can only get to terminal

  - by olssy

  Long story short: I tried compiling kernel 3.1 on Ubuntu 11.10 at the same time I had an update waiting for a reboot. Computer would boot to a black screen and would hang there. Ended up installing 11.10 on top of old install with a Live CD. Now I had a purple screen on bootup but it would end up booting. Realized Grub was the problem and tried some stuff but nothing worked. I ended up trying to install propriety ATI video drivers and since that nothing has worked, no grub menu(purple screen) and when it boots into the kernel it ends up hanging, I can sometimes get a terminal up with alt-fx. I have tried removing the ati drivers with the ati script, purging my fglrx driver, reconfiguring my xconf.org and following any tutorial I can find about fixing a broken graphics driver, but to no avail. I've gotten to a point were it seems that the ati propriety drivers are correctly loaded but it still has no grub boot menu and won't boot into Ubuntu. I've chased down my logs and this line is from kern.log: unity-greeter[3269]: segfault at 0 ip b7245cbbsp bf9d3900 error 4 in libgio-2.0.so.0.3000.0[b71ad000+142000] That line leads me to believe I don'T have the correct libgio-2 librairy on my system but have no idea how to find out what package has the correct version... My xorg.conf has no errors and seems to imply the fglrxdrm module got loaded correctly. Would be a bit complicated pasting the whole file here but if it would help I'll post it. LAstly, running fglrxinfo give me: Error: Unable yo open display (null) Any help or link to another tutorial would be appreciated. Thanks.

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• Trying to get MYLDAPAdmin working on Scientific Linux

  - by techsjs2012

  I am trying to get MYLDAPAdmin working on Scientific Linux. I downloaded it and installed it but I am getting the following message. It looks like my PHP is not setup for LDAP. Can someone help me? Missing required extension Your install of PHP appears to be missing LDAP support. Please install LDAP support before using phpLDAPadmin. (Dont forget to restart your web server afterwards) After adding php-ldap.. I am now getting this error Unable to connect to LDAP server dvldap01.uftwf Error: Can't contact LDAP server (-1) for user error Failed to Authenticate to server Invalid Username or Password.

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• Files in /home deleted

  - by long-time user....2006

  In the most specific, unemotional terms: Reinstalled os, using 11.10(1 month after release to skip initial issues that usually crop up). Configured system to my specifications(just ways of organizing config files, etc). Log out Log back in after after an hour or so...to find my home directory obliterated and just a few skeleton files existing. think oh well, try again (this has happened before with an install for reasons I've never been able to pinpoint, usually around install time with some sort of update but its never been a major recurring issue) same thing happens I thought something was awry, so I reinstalled again (another 20 minutes, meh) Set up system, arranged home directory a bit differently thinking maybe I tread on something I shouldn't have. log out, come back --- the same thing. Most of the directories I added were deleted (e.g. .xmonad which links to xmonad.hs in my portable config directory) tl;dr every change I make in my home directory gets deleted. The emotional part: UNACCEPTABLE. I need to configure my system the way I want, not get punched in the face everytime I make a change. I'll willingly fill in details as needed, this was just a start to see if anyone can help, I've found no trace of this issue in a search.

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• EC2 custom topology

  - by Methos

  Is there any way to create a desired topology of EC2 instances? For example, can I create a 3 node topology of nodes A, B, C where C gets the public IP address and B and A are connected to it. Something like: Internet <-- C <-- B <-- A B and A only get private IP addresses and there is no way for the traffic to reach A before hitting B and C. This means I can install whatever I want to install on C and B to filter, cache etc. I'm going through EC2 documentation but so far I have not seen anything that talks about it. I will really appreciate if anyone knows how to do this on EC2

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• No operating system found even when grub2 was reinstalled

  - by Cruzer

  I know there have been many variations on this question and have certainly tried to do my research. I don't really know what I'm doing so I would rather not take risks. I am trying to dual boot xubuntu and windows 7. I started out with xubuntu and just installed windows. Of course, the mbr got overwritten and windows didn't seem to recognize linux. So I booted to the live cd and rewrote the mbr. And of course, now I get the error "No Operating System Found" on startup. I have been following these tutorials to help me out. community.linuxmint.com/tutorial/view/245 unix.stackexchange.com/questions/96977/grub-wont-install ubuntuforums.org/showthread.php?t=2036730 Specifically, I ran these commands: # sdb2 is the partition with xubuntu sudo mount /dev/sdb2 /mnt # sdb1 is my boot partition sudo mount /dev/sdb1 /mnt/boot # not sure what this does, but ran it anyway... for i in /dev /dev/pts /proc /sys /run; do sudo mount -B $i /mnt$i; done sudo chroot /mnt #once chrooted grub-install /dev/sdb update-grub here's a link to my gparted https://www.dropbox.com/s/zpbbzh9z7k1l3pj/gparted.png EDIT--- didn't realize that the drive letters are different in the picture than in my code (its sda in the pic instead of sdb). I have been restarting a lot and sometimes the drive letters change and make my usb into sda.

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• What packages are safe to uninstall to reduce installation size?

  - by mathematician1975

  This question is similar to a previous question I asked How can I turn my desktop Ubuntu 8.04 into a command line only install?. I was wondering if anyone can recommend any other bulky packages from the standard 8.04 installation that can reduce the size on disk of my installation. All I really require is socket functionality, g++ and gcc, some kind of text editor and SSH client and server. Things that I don't require are things like media players, audio packages, and the more "superficial" kind of desktop niceties. Is there anything particularly large in a standard install that is safe for me to remove without compromising my requirements above? I am a bit apprehensive about trying to uninstall items and I am not totally confident about removal of particular things having a negative effect on the functionality of any other things I might need (an example is would it be safe for me to remove everything to do with Perl, or does the system/kernel/other processes require this) ??? Basically I would like to be left with the kind of items that would have been installed in the CLI version of 8.04 (had the alternative iso image not been faulty). Any help/suggestions would be gratefully received.

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• Server OS: put it on a separate drive? Yes, no, or depends on the situation?

  - by captainentropy

  Hi, I would like opinions, or facts, both preferably, on whether it's ok to install a server's OS on the RAID array or not. I would predict installation on separate drives is the best but I'm interested in the performance. The server in question will have 8 cores (2.4GHz ea.), 24GB RAM, and ~16TB of usable space of server-class drives in RAID10. There is also a subsytem of an ~equivalent size for backup. I will be running CPU/memory intesive applications on this server in addition to it being file storage for my work (research lab). IF I install the OS (haven't decided which one, probably Ubuntu or Fedora or some other good linux distro) on separate drives will there be any performance problems if they aren't configured in RAID10? IF it is better to have the OS on separate drives should I go for 150GB velociraptors in RAID1 or smallish SSD drives in RAID1? Money is unfortunately a factor as I think I'm close to maxing my budget as it is. Thanks!

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• Dom U Installation on Ubuntu 11.10

  - by sridutt

  I am trying to add a DomU Operating system on Ubuntu 11.10. I have successfully installed Xen. Verified with xm info virsh-version which returns: Compiled against library: libvir 0.9.2 Using library: libvir 0.9.2 Using API: Xen 3.0.1 Running hypervisor: Xen 4.1. Now when I tried to install Dom0 it said: unable to connect to 'localhost:8000': , in VMM. So, I followed this bug link. I could now start adding DomU. When adding DomU, in last stage, it gives the following error: Unable to complete install: 'POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: device model '/usr/lib/xen/bin/qemu-dm' not found")' Traceback (most recent call last): File "/usr/share/virt-manager/virtManager/asyncjob.py", line 44, in cb_wrapper callback(asyncjob, *args, **kwargs) File "/usr/share/virt-manager/virtManager/create.py", line 1899, in do_install guest.start_install(False, meter=meter) File "/usr/lib/pymodules/python2.7/virtinst/Guest.py", line 1223, in start_install noboot) File "/usr/lib/pymodules/python2.7/virtinst/Guest.py", line 1291, in _create_guest dom = self.conn.createLinux(start_xml or final_xml, 0) File "/usr/lib/python2.7/dist-packages/libvirt.py", line 1686, in createLinux if ret is None:raise libvirtError('virDomainCreateLinux() failed', conn=self) libvirtError: POST operation failed: xend_post: error from xen daemon: (xend.err "Error creating domain: device model '/usr/lib/xen/bin/qemu-dm' not found") I tried following this bug link that said, the bug is solved in the below package. When I run ./configure in this, I am getting an error: checking for LIBXML... no checking libxml2 xml2-config >= 2.6.0 ... configure: error: Could not find libxml2 anywhere (see config.log for details). What is the problem?

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• copy WinXP Home recovery files to new SSD

  - by maGz

  My wife's Samsung netbook, which has Windows XP Home Edition OEM and a 5400 SATA 2 HDD, has finally crawled to (almost) a halt, and I've decided to install an OCZ SSD into it. The problem is that the machine came with no recovery media, but the recovery partition exists and I can boot into it. How can I go about creating a bootable DVD from that partition, and then boot off that to install on the SSD? NOTE: My aim after this is to upgrade to Windows 7 Home Premium, as the upgrade option is a lot cheaper than purchasing a retail or DSP equivalent.

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• What do I put on my developers box in regard to SharePoint 2010

  - by Jisaak

  So we are venturing out into the world of SharePoint and it seems that I have to install SharePoint Server directly on each developer's box. Is this correct? I have SharePoint up and running on a separate sever so it seems redundant to have to install it on each box. Not to mention installing SharePoint on Windows 7 is a pain in the ars. I'm just trying to clarify how to correctly set the environment up. I've been using this link as a guide so far: http://msdn.microsoft.com/en-us/library/ee554869(office.14).aspx Any advice is greatly appreciated!

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• How is the PHP extensions/modules file structure logic based?

  - by dotpointer

  I'm trying to configure/build PHP 5.3.10 on Linux/Slackware 12 but the extensions appear in the wrong directory when I run make install. In the php.ini file is the extension dir defined: /usr/lib/php/extensions Problem is that when I run "make install" the newly built extensions are copied to a subfolder in extensions directory: /usr/lib/php/extensions/no-debug-non-zts-20090626 What am I supposed to do with this... copy the files down from the no-debug-non-zts-20090626 directory into the extensions directory, create symlinks from extensions to the modules in the no-debug-non-zts-20090626 directory (which will take a lot of time) or what? (I know I can do any of them, but I want to know the correct way...)

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• Maintaining a set of (virtual) windows XP machines

  - by Frank Meulenaar

  I have a small set (currently 3, going to 6, not going to be more than 10) of (virtual, vmware workstation) windows XP machine's. They are similar but not exactly the same. I'm currently rolling out windows updates etc by hand: start machine 1, update, close, etc; I'd like to review the updates first before the clients can install them. Incidentally there are also other updates to be performed: changes some files on all machines, install new Java versions, etc. What's a good way of doing this automatic? I tried to search for this but things like Active Directory seem overkill to me.

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• Is PCI Express x4 faster or slower than a standard PCI slot for graphic cards?

  - by Stephen R

  I am looking at potential motherboards for a computer I want to build and ran into this conundrum. The motherboard has two PCI Express slots that allow for 16 channel cards to fit in them. The catch is only one of them operates at 16 channels, the other operates only 4 channels. My question is, would it be faster to buy a PCI Express graphic card and install it in the 4 channel PCI Express slot? Or would it be better to buy a standard PCI graphic card and install it in one of the available PCI slots?

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• SATA Devices not showing up when in UEFI mode

  - by Dan Barzilay

  I'm trying to install Windows and the bios should be set to UEFI mode. The problem is that all SATA devices aren't showing up (shows as if there aren't any) so I can't boot from the installation CD (it's just not there). The weird thing is that when set to LEGACY mode they all show up.. SATA mode is set to AHCI and I'm on Lenovo Y510P. I have a Linux OS installed that is accessible only when BIOS is in LEGACY mode (otherwise the hard drive it's on is not available) I also tried reseting the BIOS settings which didn't help.. Comment please if more details needed Extra details: Computer model: Lenovo IdeaPad Y510P (not overcloacked) Installed Linux OS version: Linux 3.7-trunk-amd64 x86_64 Trying to install Windows: Windows 7 Ultimate 64bit BIOS Information: Vendor: LENOVO Version: 74CN26WW(V1.07) Update: Using user1608638 answer and suggestion of using the USB flash drive as the boot device instead of the CD/DVD method I succeeded in installing Windows 7! (Thanks alot user1608638)

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• Audio not working in 12.10

  - by frampy

  I did a clean install of 12.10, when I open Sound Settings in gnome the only device in the list is "Dummy Output", and sound is not working. Sound worked fine out of the box in 12.04 I ran alsamixer, it says my card is "HDA Intel", and chip is "Realtek ALC880". The alsamixer playback output was set to mute at first, unmuting did not fix. I checked out the info at http://www.unixmen.com/2012003-howto-resolve-nosound-problem-on-ubuntu/ as suggested on a similar question, I've done everything there except installing the ubuntu audio dev team driver. Should I try install this? Edit: I've been reading the sound troubleshooting guide at https://help.ubuntu.com/community/SoundTroubleshooting It looks like Ubuntu is finding my audio device correctly. mike@wucade:~$ lspci -v | grep -A7 -i "audio" 00:1b.0 Audio device: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller (rev 03) Subsystem: Albatron Corp. Device 2668 Flags: bus master, fast devsel, latency 0, IRQ 40 Memory at d01c0000 (64-bit, non-prefetchable) [size=16K] Capabilities: Kernel driver in use: snd_hda_intel Kernel modules: snd-hda-intel Still stuck as to why this isn't working.

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• Config Time Service on Server 2008 DC using Group Policy Only

  - by Ed Fries

  I want to configure the Time Service using only GP in a Server 2008 R2 domain. I have created a GP as follows: Computer Config, Policies, Administrative Templates, System, Windows Time Policy: =Global Configuration Settings -Enabled w/ default settings. Computer Config, Policies, Administrative Templates, System, Windows Time Policy,Time Providers: =Configure Windows NTP Client -Enabled w/ default settings. =Enable Windows NTP Client -Enabled w/ default settings. =Enable Windows NTP Server -Enabled w/ default settings. The policy is linked, enforced and applied to Domain Controllers OU. The GP modeling results shows the policy is in effect on the DC (Single DC domain) and the DC is recognized as the PDC emulator. I have run gpupdate /force and logged off/on. The issue is that the DC shows the time source as internal. I understand I can force this at the cmd line using w32tm to set the peer but I would like to understand what is missing in the GP. The default NTP Client GP setting includes time.windows.com,0x9 as the source but it does not appear to be taking effect.

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• xubutnu Nvidia Settings not remembered

  - by hozza

  I have an Nvidia card and I'm using NVIDIA Driver Version: 304.51 and the NVIDIA X Server Settings GUI. Everything works fine but when I reboot and login again both my two screens are set to +0 +0 so they mirror each other... I change the settings to screen 2 (NEC LED) to be left of screen 1 (DELL) click Apply and Save to X Configuration File... It all works but when I login again the settings are not remembered... This is my xorg config file, can anyone help out? # nvidia-settings: X configuration file generated by nvidia-settings # nvidia-settings: version 304.51 (buildd@komainu) Fri Oct 12 12:53:49 UTC 2012 Section "ServerLayout" Identifier "Layout0" Screen 0 "Screen0" 0 0 InputDevice "Keyboard0" "CoreKeyboard" InputDevice "Mouse0" "CorePointer" Option "Xinerama" "0" EndSection Section "Files" EndSection Section "InputDevice" # generated from default Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/psaux" Option "Emulate3Buttons" "no" Option "ZAxisMapping" "4 5" EndSection Section "InputDevice" # generated from default Identifier "Keyboard0" Driver "kbd" EndSection Section "Monitor" # HorizSync source: edid, VertRefresh source: edid Identifier "Monitor0" VendorName "Unknown" ModelName "DELL 2005FPW" HorizSync 30.0 - 83.0 VertRefresh 56.0 - 75.0 Option "DPMS" EndSection Section "Device" Identifier "Device0" Driver "nvidia" VendorName "NVIDIA Corporation" BoardName "GeForce GT 640" EndSection Section "Screen" Identifier "Screen0" Device "Device0" Monitor "Monitor0" DefaultDepth 24 Option "Stereo" "0" Option "nvidiaXineramaInfoOrder" "DFP-0" Option "metamodes" "DFP-0: nvidia-auto-select +1280+0, DFP-2: nvidia-auto-select +0+0" SubSection "Display" Depth 24 EndSubSection EndSection

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• File Adapter FileName Macros

  - by IntegrationOverload

  I can never find these when I need them...   Macro name Substitute value %datetime% Coordinated Universal Time (UTC) date time in the format YYYY-MM-DDThhmmss (for example, 1997-07-12T103508). %datetime_bts2000% UTC date time in the format YYYYMMDDhhmmsss, where sss means seconds and milliseconds (for example, 199707121035234 means 1997/07/12, 10:35:23 and 400 milliseconds). %datetime.tz% Local date time plus time zone from GMT in the format YYYY-MM-DDThhmmssTZD, (for example, 1997-07-12T103508+800). %DestinationParty% Name of the destination party. The value comes from the message context property BTS.DestinationParty. %DestinationPartyQualifier% Qualifier of the destination party. The value comes from the message context property BTS.DestinationPartyQualifier. %MessageID% Globally unique identifier (GUID) of the message in BizTalk Server. The value comes directly from the message context property BTS.MessageID. %SourceFileName% Name of the file from where the File adapter read the message. The file name includes the extension and excludes the file path, for example, Sample.xml. When substituting this property, the File adapter extracts the file name from the absolute file path stored in the FILE.ReceivedFileName context property. If the context property does not have a value, for example, if a message was received on an adapter other than the File adapter, the macro will not be substituted and will remain in the file name as is (for example, C:\Drop\%SourceFileName%). %SourceParty% Name of the source party from which the File adapter received the message. %SourcePartyQualifier% Qualifier of the source party from which the File adapter received the message. %time% UTC time in the format hhmmss. %time.tz% Local time plus time zone from GMT in the format hhmmssTZD (for example, 124525+530).

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• Windows 7 installer doesn't recognize NTFS partition.

  - by ifesdjeen

  Hi, I'm trying to install windows 7 on my Macbook. I've created NTFS partition, but when i'm starting up Windows 7 installation, it says that i can't install windows on this partition, since drive already contains maximum amount of partitions with this filesystem type. I haven't heard of any limits on filesystems, but still i can't even format this drive from Win7 installer. I've found access to command line from win7 installation CD, but i can't find fdisk there to format. Do you have any idea on about how to deal with it?

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• Barnyard Service - MySQL Error

  - by SLYN

  I installed barnyard2 and saved as a service. When I run service barnyard2 start, Barnyard2 is failed. After I run tail -100 /var/log/messages and I encounter a fault like this. ERROR database: 'mysql' support is not compiled into this build of snort#012 Aug 22 11:52:06 barnyard2[25771]: FATAL ERROR: If this build of barnyard2 was obtained as a binary distribution (e.g., rpm,#012or Windows), then check for alternate builds that contains the necessary#012'mysql' support.#012#012If this build of barnyard2 was compiled by you, then re-run the#012the ./configure script using the '--with-mysql' switch.#012For non-standard installations of a database, the '--with-mysql=DIR'#012syntax may need to be used to specify the base directory of the DB install.#012#012See the database documentation for cursory details (doc/README.database).#012and the URL to the most recent database plugin documentation. Aug 22 11:52:06 barnyard2[25771]: Barnyard2 exiting What sould I do for solving this problem? When I installed Barnyard2, I used these commands: # ./configure --with-mysql --with-mysql-libraries=/usr/lib64/mysql # make ; make install (My System is CentOS 6.5 x86_64.)

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• Combine OS partion with data partition on NAS4Free/FreeNAS

  - by Pak

  I recently built a NAS4Free (formerly FreeNAS) machine using a 256MB (yes, MB) USB drive for the OS. When I did the original install, I had the bright idea of making the OS partition just big enough for the OS and a then creating a second partition using the remainder of the drive to store stuff pertaining to the OS. I never really found a use for the data partition and I ended up running out of space on the OS partition, so now I'd like to combine the partitions into a single partition. Is this something that is possible to do while everything is up and running? If it comes down to it, I can take down the machine and do a fresh install of the OS using the entire space of the USB drive, but I'd like to use this as an opportunity to better familiarize myself with FreeBSD/UNIX type systems. If this is possible, will it interfere with the NAS4Free things? The data partition shows up in the web interface under the disks section. If I end up manually changing the partitions, I'd be concerned with NAS4Free getting confused by the missing partition.

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• strlen returns incorrect value when called in gdb

  - by alesplin

  So I'm noticing some severely incorrect behavior from calls to standard library functions inside GDB. I have the following program to illustrate: #include <stdio.h> #include <stdlib.h> #include <string.h> int main(int argc, char *argv[]) { char *s1 = "test"; char *s2 = calloc(strlen("test")+1,sizeof(char)); snprintf(s2,strlen("test")+1,"test"); printf("string constant: %lu\n", strlen(s1)); printf("allocated string: %lu\n", strlen(s2)); free(s2); return 0; } When run from the command-line, this program outputs just what you'd expect: string constant: 4 allocated string: 4 However, in GDB, I get the following, incorrect output from calls to strlen(): (gdb) p strlen(s1) $1 = -938856896 (gdb) p strlen(s2) $2 = -938856896 I'm pretty sure this is a problem with glibc shipped with Ubuntu (I'm using 10.10), but this is a serious problem for those of us who spend lots of time in GDB. Is anyone else experiencing this kind of error? What's the best way to fix it? Build glibc from source? (I'm already running a version of GDB built from source)

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• Can I delete the OEM partition on the new Dell XPS 15?

  - by timepilot

  My new Dell XPS 15 L521X just arrived. I need to set this up to dual boot Linux. Sadly, the system comes with four primary partitions. I can't do a clean install at the moment, so one of the partitions will have to be deleted before I can install Linux. The layout is as follows: OEM: 39mb Hibernation: 8gb OS: 457gb Recovery: 12gb Obviously, I can't delete the Hibernation and OS partitions (will shrink to make space for Linux) and I'd like to keep the recovery partition if possible. So my question is what is on the small OEM partition? What functionality will I lose if I delete it?

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