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Is there a problem with C6 CR and glibc?
by Patrick Bervoets 11 Oct '11

11 Oct '11

C6 with CR x86_64 Third time when trying to install a packet I get: yum install samba [...] --> Finished Dependency Resolution Error: Package: glibc-2.12-1.7.el6_0.5.i686 (updates) Requires: glibc-common = 2.12-1.7.el6_0.5 Installed: glibc-common-2.12-1.25.el6_1.3.x86_64 (@cr) glibc-common = 2.12-1.25.el6_1.3 Available: glibc-common-2.12-1.7.el6.x86_64 (base) glibc-common = 2.12-1.7.el6 Available: glibc-common-2.12-1.7.el6_0.3.x86_64 (updates) glibc-common = 2.12-1.7.el6_0.3 Available: glibc-common-2.12-1.7.el6_0.4.x86_64 (updates) glibc-common = 2.12-1.7.el6_0.4 Available: glibc-common-2.12-1.7.el6_0.5.x86_64 (updates) glibc-common = 2.12-1.7.el6_0.5 Had the same problem yesterday with a Canondriver-rpm and earlier with either Hugin or Scribus. Searched on Google and found many old pages (afaik nothing C6). I don't think there is a glibc-common i686 package (neither do I know if that would be a good idea). Should I downgrade glibc-common to 2.12-1.7? Or install a second glibc-common? Or just wait? BTW I tried to install Samba with only Base, Updates and CR repo enabled. Thanks Patrick

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RHEL 5.2 beta relased
by Rajagopal Swaminathan 11 Oct '11

11 Oct '11

Greetings, http://www.zdnet.com/blog/open-source/red-hat-enterprise-linux-62-beta-is-o… -- Regards, Rajagopal

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compilation error
by mattias 10 Oct '11

10 Oct '11

i try to compile a application but /usr/bin/ld can not find -lc what librarie are i missing

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CentOS Summit?
by Kay Williams 10 Oct '11

10 Oct '11

Hello, I am writing to gauge interest in holding a gathering for CentOS users, admins and developers? A conference is a fun and efficient way for like-minded individual to meet, learn about each other, share stories, exchange ideas, provide support and friendship, and come up with even better ideas for the future. If there is sufficient interest, I would be willing to help organize. Perhaps an event could be held around the same time as other relevant conferences such as LinuxCon or OSCon. Let me know your thoughts. Kay Williams kay(a)thewilliams.net P.S. By way of background, I have been working with CentOS since the early days, but prior to that I worked at Microsoft for many years where it was often my role to organize and present at technology summits. I am sure we can come up with a format that is fun, relevant and interesting.

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Choosing a CentOS version
by Bade Iriabho 10 Oct '11

10 Oct '11

This may be a noob question but there is something I have been trying to understand, there are currently three main versions of CentOS 4, 5, and 6. My main question is simply how do I know what version I should deploy? I have searched online and either I did not do a good job of searching or the information I get is inadequate. To better understand why I ask this question, here are some of the build up questions. - Is there an online resource that lists (compare/contrast) the different versions (i.e. 4, 5, and 6) and why you should pick a particular one? - Is a particular version the best for a web server, how do I know this? - Should or does it matter what version I deploy? - Can assume that once a version is decided upon, one should stick to the latest release. i.e. for version 5, go with 5.7 right now? If you can point me to an online resource, that would be awesome as well. B.I.

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{Q} Relate to daylight saving time on Nov. 6 cron job
by mcclnx mcc 10 Oct '11

10 Oct '11

We have CENTOS 4.X and 5.X on DELL servers. On Nov. 6, 2:00 A.M. will change to 1:00 A.M. If I have cron job on 1:20 A.M., will it run twice? Thanks.

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multiple ifcfg-x locations on CentOS-6
by James B. Byrne 09 Oct '11

09 Oct '11

CentOS-5 $ ll /etc/sysconfig/networking/profiles/* total 0 $ ll /etc/sysconfig/networking/devices total 0 CentOS-6 $ ll /sysconfig/networking/profiles total 4 drwxr-xr-x. 2 root root 4096 Oct 7 15:19 default $ ll /sysconfig/networking/profiles/* total 24 -rw-r--r--. 2 root root 158 Oct 7 15:19 hosts -rw-r--r--. 2 root root 116 Oct 7 15:19 ifcfg-br0 -rw-r--r--. 2 root root 238 Oct 7 15:24 ifcfg-eth0 -rw-r--r--. 2 root root 117 Oct 7 15:19 ifcfg-eth1 -rw-r--r--. 2 root root 40 Oct 7 15:19 network -rw-r--r--. 2 root root 120 Oct 7 15:25 resolv.conf $ ll /etc/sysconfig/networking/devices total 12 -rw-r--r--. 2 root root 116 Oct 7 15:19 ifcfg-br0 -rw-r--r--. 2 root root 238 Oct 7 15:24 ifcfg-eth0 -rw-r--r--. 2 root root 117 Oct 7 15:19 ifcfg-eth1 I spent the better part of two hours trying to discover why I could not configure br0 to start after modifying /etc/sysconfig/network-scripts following my previously succesful notes. I finally deleted ifcfg-bro and used the existing ifcfg-eth0 and -eth1 scripts to at least get a network connection working. When I start the network service I only saw l0 and eth0 start as eth1 is disabled. However, when I did an ifconfig I saw that br0 is configured as well, but not by me. Looking for br0 in the file system led me to the directories listed above. I do not recall seeing these before and the only difference between this CentOS box and the previous virtual host I installed is that this time I selected the virtual host install option instead of minimal install. Evidently this was a misstep on my part. One that I doubt I shall repeat. My questions are: What are these duplicate, and identical, files doing in multiple places on my system; and why are they evidently interfering with the normal processing of /etc/sysconfig/network-scripts through the service utility? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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WARNING: Deprecated config file /etc/modprobe.conf
by Alexander Farber 09 Oct '11

09 Oct '11

Hello, I've changed the web hoster recently and also upgraded from CentOS 5 to6. Now I get this warning: # service iptables restart iptables: Flushing firewall rules: [ OK ] iptables: Setting chains to policy ACCEPT: filter [ OK ] iptables: Unloading modules: [ OK ] iptables: Applying firewall rules: WARNING: Deprecated config file /etc/modprobe.conf, all config files belong into /etc/modprobe.d/. # cat /etc/modprobe.conf ### Hetzner Online AG - installimage # load all modules # networking alias eth0 r8169 # hdds alias scsi_hostadapter sata_via alias scsi_hostadapter1 sata_sil alias scsi_hostadapter2 sata_nv alias scsi_hostadapter3 sd_mod alias scsi_hostadapter4 ahci alias scsi_hostadapter5 raid0 alias scsi_hostadapter6 raid1 alias scsi_hostadapter7 raid5 alias scsi_hostadapter8 raid6 alias scsi_hostadapter9 raid10 alias scsi_hostadapter10 3w-xxxx alias scsi_hostadapter11 3w-9xxx alias scsi_hostadapter12 aacraid I wonder if it is safe to # mv /etc/modprobe.conf /etc/modprobe.d/ Where there are already some files: # ll /etc/modprobe.d/ -rw-r--r--. 1 root root 52 Jul 11 10:53 anaconda.conf -rw-r--r--. 1 root root 884 Jul 20 12:46 blacklist.conf -rw-r--r--. 1 root root 382 Nov 12 2010 dist-alsa.conf -rw-r--r--. 1 root root 5596 Nov 12 2010 dist.conf -rw-r--r--. 1 root root 473 Nov 12 2010 dist-oss.conf I'd hate to lock out myself, as I don't have a remote console attached to my server. (I'd have to book it and to wait) Any opinions please? Alex

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CentOS 6.0 CR mdadm-3.2.2 breaks Intel BIOS RAID
by Trey Dockendorf 09 Oct '11

09 Oct '11

I just upgraded my home KVM server to CentOS 6.0 CR to make use of the latest libvirt and now my RAID array with my VM storage is missing. It seems that the upgrade to mdadm-3.2.2 is the culprit. This is the output from mdadm when scanning that array, # mdadm --detail --scan ARRAY /dev/md0 metadata=imsm UUID=734f79cf:22200a5a:73be2b52:3388006b ARRAY /dev/md126 metadata=imsm UUID=3d135942:f0fad0b0:33255f78:29c3f50a mdadm(IMSM): Unsupported attributes : 40000000 mdadm: IMSM metadata loading not allowed due to attributes incompatibility. mdadm(IMSM): Unsupported attributes : 40000000 mdadm: IMSM metadata loading not allowed due to attributes incompatibility. ARRAY /dev/md127 container=/dev/md0 member=0 UUID=734f79cf:22200a5a:73be2b52:3388006b The error about IMSM shows up on google as something that happened to Fedora users during a FC14->FC15 upgrade. The server itself isn't old, it's a Supermicro 2U with Dual Xeon 5400 family of CPU. There are two RAIDs on this one controller...a RAID1 which still functions and a RAID5 which is the one that is unable to be seen. I don't know what IMSM is for, but the only thing strange about that array is it is 2.7TB so the BIOS configured it as two separate arrays, one as 2TB and one as 700GB, but it was showing up to CentOS as a single volume. I downgraded to 3.2.1 , ran mdadm again and bam...it works, # mdadm --detail --scan ARRAY /dev/md0 metadata=imsm UUID=734f79cf:22200a5a:73be2b52:3388006b ARRAY /dev/md126 metadata=imsm UUID=3d135942:f0fad0b0:33255f78:29c3f50a ARRAY /dev/md127 container=/dev/md0 member=0 UUID=691f975d:6beecfd8:67b39886:b7ee7f6e Hopefully this can be fixed before this version makes it to 6.1, though it's likely a problem for upstream RHEL as well. - Trey

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ganglia failing dependency
by Tim Dunphy 09 Oct '11

09 Oct '11

hello list, I'm trying to install ganglia-gmetad on centos 5.6. rrdtool is already installed and librrd is there. But for some reason when I go to install this package it doesn't see that it is. [root@VIRTCENT11:/usr/local/src/ganglia-3.2.0] #yum install ganglia-gmetad Loaded plugins: fastestmirror, security Loading mirror speeds from cached hostfile * base: mirrors.lga7.us.voxel.net * epel: serverbeach1.fedoraproject.org * extras: mirror.umoss.org * rpmforge: fr2.rpmfind.net * updates: mirror.atlanticmetro.net Excluding Packages in global exclude list Finished Setting up Install Process Resolving Dependencies --> Running transaction check ---> Package ganglia-gmetad.i386 0:3.0.7-1.el5 set to be updated --> Processing Dependency: librrd.so.2 for package: ganglia-gmetad --> Finished Dependency Resolution ganglia-gmetad-3.0.7-1.el5.i386 from epel has depsolving problems --> Missing Dependency: librrd.so.2 is needed by package ganglia-gmetad-3.0.7-1.el5.i386 (epel) Error: Missing Dependency: librrd.so.2 is needed by package ganglia-gmetad-3.0.7-1.el5.i386 (epel) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest But here are the required libraries: [root@VIRTCENT11:/usr/local/src/ganglia-3.2.0] #locate librrd.so.2 /usr/lib/librrd.so.2 /usr/lib/librrd.so.2.0.13 Does anyone have any ideas on how to get past this point? thanks!

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