Discuss October 2008

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Centos v3.3 CD 2
by Luis-Miguel Astudillo 15 Nov '11

15 Nov '11

Sorry, I have been away for a while. has anyone fixed CD2 fotr CentOS v3.3 ? -- Luis

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Lingering dhclient issue
by Alfred von Campe 23 Jun '11

23 Jun '11

I recently reconfigured some CentOS 4.3 systems that were using DHCP to use static IP addresses. At the same time, the systems were moved to a new VLAN. Here is the approximate sequence of events that took place: 1. ifdown eth0 2. edit /etc/sysconfig/network-scripts/ifcfg-eth0 with static IP address 3. wait for network folks to reconfigure switch 4. ifup eth0 I may have reversed steps 1 and 2 on some of the systems. The problem was that the dhclient process didn't go away, and kept renewing the old lease. Our DHCP server is configured to contact the DNS server and update the entry for each host it serves. So the DNS entries for these systems were pointing to the old address in the old VLAN. The eth0 interface itself just kept the static IP address for which it was configured. It took me a while to figure out what was going on. My question is, what could I have done to avoid this (other than killing the dhclient process)? Is there a better way to reconfigure an interface to use a static address? I am not interested in solutions that involve using a GUI (i.e., only command line solutions). Thanks, Alfred

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what pkg contains libstdc++-libc6.2-2.so.3
by Fong Vang 02 Feb '11

02 Feb '11

In CentOS 4.1/2, what package contains this library: libstdc++-libc6.2-2.so.3? I installed a couple of the compat- packages, but this library is still missing.

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mod_mono on centos5?
by Dave 07 Sep '09

07 Sep '09

Hello, Does anyone have mod_mono rpm or srpm compiled for centos5? Thanks. Dave.

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Upgrade mail server to new machine
by Thom Paine 11 May '09

11 May '09

I have an old RHEL3 box that I am upgrading to CentOS5. I picked up a new Dell Poweredge R200 to use for that. Is there an easy way to copy all the user accounts and existing mail from the old server to the new one? Thanks. -- -=/>Thom

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OT: Digital Video Editor for CentOS 5.2 - Suggestions?
by Lanny Marcus 12 Feb '09

12 Feb '09

We are finally going to replace our VHS-C Camcorder, with a Digital Camcorder, tomorrow. Looking for suggestions, for Digital Video Editor to use on CentOS 5.2. Preferably, something in the CentOS or RPMForge repositories and easy to use. TIA!

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Upgrading to Centos 4.7 on HP DL580G5 caused problems
by Dr Les Oswald 11 Dec '08

11 Dec '08

As part of patching a cluster which has two DL580G5 login nodes ( 4X Intel 7300 DC cpus) & 24 HP DL160G5 compute nodes ( 2x Intel 5272 DC cpus) we encountered an issue that I would like to record: I upgraded both DL580s to Centos 4.7 via yum but only rebooted one initially- this node, previously bomb-proof, started to hang randomly with no obvious messages logged to help with diagnosis. In the dmessage output I found this sequence never seem before Uhhuh. NMI received for unknown reason 20. Dazed and confused, but trying to continue Do you have a strange power saving mode enabled? Uhhuh. NMI received for unknown reason 30. Dazed and confused, but trying to continue (repeated several times) Googling revealed many different scenarios with this boot error message, some suggesting a memory error - Oh Joy, these two machines have 64GB RAM each. I then changed grub.conf to boot to the previous kernel 2.6.9-67.0.15.ELsmp instead of the updated version of 2.6.9-78.0.5.ELsmp. The boot-time error messages immediately went away and so far the systems are reliable. Has anyone an explanation or confirmation that they have seen or overcome the above issue? I should mention that the DL160 compute nodes have not exhibited this behaviour at all. Les Oswald

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Mirroring Hard Drive
by Matt 08 Dec '08

08 Dec '08

I have a 500GB Sata drive about 15% used I would like to make an exact copy of too another Sata 500GB drive as a spare. That way if something happens to the one in service I can plug in the spare quickly and restore one of the weekly backups without reinstalling the entire OS and all the little tweaks of setup on this mail/web server. How do I do this? That is make an exact bootable copy of a linux drive. Its running Centos 4.6 if that matters. Matt

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nspluginwrapper included in CentOS 5.2 fails completely
by MHR 18 Nov '08

18 Nov '08

I was wondering if anyone else had this problem. I run CentOS 5.2 x86_64 on my workstation at home. Since 5.2 came out with nepluginwrapper bundled into it, none of my plugins work. I thought it was just a problem with the flash plugin, but neither the mplayerplug-in plugins nor the adobe acrobat reader plugin work, either. I have this problem both with the Seamonkey contributed 64-bit build and my own (otherwise perfectly working) native build of the 2.01a pre-release trunk build (which I have been using since January, with occasional updates, the most recent being about a week ago). I have not tried going back to the 32-bit release of Seamonkey, although I suppose that's next. I stopped using that when it kept crashing when I tried to save a web page after having visited some unknown threshold level of pages (i.e., it wouldn't do this on the first or second web page, but somewhere down the line, a threshold was crossed and it would crash fairly regularly). In discussions with the Mozilla folks, I concluded that the problem had something to do with running the 32-bit release on my 64-bit OS. Due to some peculiarity in the 1.x Mozilla build process, I was never able to build a 64-bit version of the 1.x releases, but I had no trouble running the L&G not-yet-released revision, with occasional glitches from the bugs that I ran into (and reported). But, back to the point: There are two major issues I have with the 5.2 bundled nspluginwrapper: 1) The nspluginwrapper program itself is gone, which makes it a little (lot) harder to manage and troubleshoot the problems. and, more importantly: 2) None of the 32-bit plugins that are supposed to be wrapped work. Period. Is this something I should report in bugzilla, at CentOS (and upstream)? I didn't see it in the bugs listed at CentOS.org. Thanks. mhr

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External ext3 USB Hard drive and selinux
by Al Freundorfer 14 Nov '08

14 Nov '08

I was directed to post this on the mailing list. See the following forum post as a reference. http://www.centos.org/modules/newbb/viewtopic.php?topic_id=16710&forum=42 I formatted my external ext3 372GB USB hard drive in ubuntu and now want to use it in Centos. I made sure that my group/user numbers were the same. I was not able to write to the mounted USB hard drive (HD). I suspected selinux and shut it of and I was able to copy the file! I set selinux back to enforce and rebooted. I like the security features of selinux. I tried: 1) chcon -v 2) restorecon -Rv /media/disk 3) cp -P and still am not able to write to the USB HD. The sad part is I can delete files from the USB HD. See forum post for details. I tried it in fedora 9 and it is able to write to the USB HD I tried an 32GB USB memory stick in Centos 5.2 and it worked! I am wondering why it doesn't work for my USB HD? The only difference is the the size. Your help would be much appreciated.

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Discuss October 2008