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Re: [CentOS] Best way to duplicate a live Centos 5 server?
by Cal Sawyer 11 Jul '12

11 Jul '12

Subject: Re: [CentOS] Best way to duplicate a live Centos 5 server? To: CentOS mailing list <centos(a)centos.org> On Mon, Jun 18, 2012 at 11:21 AM, Cal Sawyer <cal-s(a)blue-bolt.com> wrote: >> > >> > ReaR has suddenly become very interesting to me, probably explaining why >> > it utterly fails to work properly (for me).I'm using 1.13 to pull a >> > USB-based recovery image, but there's an error in the >> > backup/NETFS/default/50_make_backup.sh script that doesn't mount the USB >> > device after the mkrecovery step, so subsequent tar fails on write to >> > the non-existent mountpoint. I fixed that, but on recovery it fails to >> > mount the necessary directories on the restore drive as well, so "rear >> > recover" quickly bombs out. Is anyone having any success actually using >> > ReaR on CentOS 6.x? - csawyer > It intentionally doesn't deal with drives the kernel has marked as > removable. I had trouble with that with the main drives on a SAS > hotswap backplane in an earlier version but I think that is fixed now. > > I'd recommend asking how to override this on the ReaR mail list. > While the code seems usable (and yes, I have succeeded in using it on > Centos 6x.), the documentation either doesn't exist yet or is very out > of date. But, the authors are very responsive and it would be good > to let them know about any bugs or usability problems. The mail list > is still at sourceforge although the code has been moved to github and > there is talk of moving the list elsewhere. > > -- Les Mikesell lesmikesell(a)gmail.com ReaR hasn't posed any insurmountable problems with USB removable media but i can see SATA/SAS needing some massaging in the device detection dep't. Yes, i've gotten myself on the ReaR mailing list now. You're right - documentation is pretty dire. Guess i'm not alone in hating doing it. USB backup is broken due to the order in which path variables get set - sure is lot of fun trawling through the scripts to find out what gets set when. Hope the ReaR maintainers are interested in this and haven't gotten themselves mired in tape archive integration - i would have thought USB backup was the winner in terms of getting broad acceptance as a bare-metal DR solution. However, when it works - wow. Just restored an HP dl360 w/HWRAID to a Presario desktop machine and it lives! No network, but that's small beans compared to the larger win. - csawyer

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KVM upgrade to 6.3
by Chris 11 Jul '12

11 Jul '12

Hello, I upgraded my centos 6.2 machine (KVM virtualization host) to 6.3. Do I need to upgrade my virtual machine config files? Result: /etc/libvirt/qemu/*.xml <type arch='x86_64' machine='rhel6.2.0'>hvm</type> Expected result: <type arch='x86_64' machine='rhel6.3.0'>hvm</type> -- Chris

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[CentOS 6.3] rsyslog 5.8.10-2 - PreserveFQDN directive ignored
by SilverTip257 11 Jul '12

11 Jul '12

Hello, I recently upgraded a server from CentOS 6.2 to 6.3 I found a change in the behavior of rsyslog's configuration file that I found particularly interesting. The "$PreserveFQDN on" directive was not being recognized as the config remained unchanged during the upgrade. This incorrect behavior caused the host to syslog with only the host name and not it's fully qualified domain name. ** Has anyone else experienced this odd behavior? ** I did find a workaround [0] [1], but feel this behavior is a bug. Note the bugreport linked previously was for version 5.4.0 and reported in July 2010. If I make $PreserveFQDN the _first_ directive it syslogs with the FQDN otherwise the directive is ignored. The official 6.2 mirror has rsyslog-4.6.2-12.el6.i686.rpm and 6.3 has rsyslog-5.8.10-2.el6.i686.rpm For the record here's my output from `yum info rsyslog`: Name : rsyslog Arch : i686 Version : 5.8.10 Release : 2.el6 Size : 2.1 M Repo : installed >From repo : base Summary : Enhanced system logging and kernel message trapping daemons URL : http://www.rsyslog.com/ License : (GPLv3+ and ASL 2.0) Description : Rsyslog is an enhanced, multi-threaded syslog daemon. It supports MySQL, : syslog/TCP, RFC 3195, permitted sender lists, filtering on any message part, : and fine grain output format control. It is compatible with stock sysklogd : and can be used as a drop-in replacement. Rsyslog is simple to set up, with : advanced features suitable for enterprise-class, encryption-protected syslog : relay chains. I've not found other reports of this issue with CentOS 6.3 so far and there's no recent mention of this bug [yet] on the Rsyslog Bugzilla [2]. But the following ticket [3] submitted this past April makes me wonder. Config Snippet: <config> #rsyslog v3 config file $PreserveFQDN on # if you experience problems, check # http://www.rsyslog.com/troubleshoot for assistance #### MODULES #### $ModLoad imuxsock.so # provides support for local system logging (e.g. via logger command) $ModLoad imklog.so # provides kernel logging support (previously done by rklogd) #$ModLoad immark.so # provides --MARK-- message capability # Provides UDP syslog reception #$ModLoad imudp.so #$UDPServerRun 514 # Provides TCP syslog reception #$ModLoad imtcp.so #$InputTCPServerRun 514 #### GLOBAL DIRECTIVES #### # Use default timestamp format $ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat # # (BUG!) # FQDN must be the first directive or it is not honored # http://bugzilla.adiscon.com/show_bug.cgi?id=192 #$PreserveFQDN on ... omitted... </config> [0] http://bugzilla.adiscon.com/show_bug.cgi?id=192 [1] http://serverfault.com/questions/274625/how-do-i-get-rsyslogd-to-log-a-serv… [2] http://bugzilla.adiscon.com/buglist.cgi?query_format=advanced&short_desc_ty… [3] http://bugzilla.adiscon.com/show_bug.cgi?id=321 ---~~.~~--- Mike // SilverTip257 //

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Re: [CentOS] libre office
by Fernando Cassia 11 Jul '12

11 Jul '12

On Wed, Jul 11, 2012 at 9:06 AM, Steve Clark <sclark(a)netwolves.com> wrote: > I think it is more the fact the Oracle seems to be two faced in their > dealings with foss as > opposed to IBM. Since the Sun acquisition, and despite the LO-OpenOffice spat (which btw the 'community' forkers destroyed the future of the former Sun StarOffice, in the name of freedom, of course), most of the former Sun FOSS projects -at least the mainstream ones- have been doing well: Virtualbox, GPL Java SE (OpenJDK), NetBeans, Glassfish J2EE server, MySQL, even while Oracle had other proprietary products in its arsenal that would overlap (ie JDeveloper freeware overlaped with NetBeans, yet Oracle continued with Netbeans development nevertheless, with v7.2 just released and extended for better PHP/C++ support). Having said that, I wouldn't touch Oracle's propietary offerings even with the proverbial 20ft pole -mostly because I cannot afford any and there are worthy alternatives which are totally free- but Sun's FOSS projects I care about are alive and doing well (even OO under Apache's). I recorded some of the doom and gloom predictions (ie "MySQL will die") vs the reality on a news story last year http://news.techeye.net/software/despite-anti-oracle-hysteria-firm-is-an-op… After that they even complied with their promise of starting to open source JavaFX 2.0 http://openjdk.java.net/projects/openjfx/ OK, now let's concentrate on CentOS... :) FC -- During times of Universal Deceit, telling the truth becomes a revolutionary act - George Orwell

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System crash -- no clue why
by Michael Eager 10 Jul '12

10 Jul '12

Hi -- My CentOS 5.8 server crashed, leaving no clue why. The last entry in /var/log/messages is a dhcpd notice around 4:00am, followed by the restart message when I rebooted. The only clue that I have is that the fan was running full speed when I restarted it. The fan slowed to normal speed. Any ideas what I can do to find out the cause? -- Michael Eager eager(a)eagercon.com 1960 Park Blvd., Palo Alto, CA 94306 650-325-8077

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kickstart installation problem
by jiten jha 10 Jul '12

10 Jul '12

Dear Friends, I have centos 6.2 64 bit os in my dell server. When I try to install centos or scientific linux using NFS so it is not working and getting me error = "unable to download kickstart file". My kickstart file configuration is : #platform=x86, AMD64, or Intel EM64T #version=DEVEL # Firewall configuration firewall --disabled # Install OS instead of upgrade install # Use NFS installation media nfs --server=10.112.16.33 --dir=/nfs/os/ks.cfg # Root password rootpw --iscrypted $1$3T0pmlXY$G/jNJD/2eWwNJhEraJIrl0 # System authorization information auth --useshadow --passalgo=sha512 # Use graphical install graphical # Run the Setup Agent on first boot firstboot --enable # System keyboard keyboard us # System language lang en_US # SELinux configuration selinux --disabled # Installation logging level logging --level=info # Reboot after installation reboot # System timezone timezone Asia/Kolkata # Network information network --bootproto=dhcp --device=eth0 --onboot=on # System bootloader configuration bootloader --location=mbr # Clear the Master Boot Record zerombr # Partition clearing information clearpart --all # Disk partitioning information part /boot --fstype="ext4" --size=200 part swap --fstype="swap" --size=4096 part / --fstype="ext4" --grow --size=1 network installation using NFS kickstart following setps i am using - system-config-kickstart - system-config-nfs - /etc/init.d/nfs restart - mkdir -p /nfs/os/ - mkdir /mnt/iso/ - mount -t iso9660 /root/Desktop/Centos-64-DVD.iso /mnt/iso/ -o loop - cp -Rp /mnt/iso/* /nfs/os/ - vim /etc/exports/ - /nsf/os/ 10.112.0.0/8(ro,sync) - exportfs -a - exportfs -v - /etc/init.d/nfs restart . - When I boot my pc using centos and in a boot option I put " ks=nfs:serverIP/nfs/ks/ks.cfg" So it is giving my error could not find kernel image ks=nfs:serverIP/nfs/ks/ks.cfg When I put ks.cfg file in /nfs/os/ks.cfg Then it is giving me error " Unable to download kickstart file" I have check all configuration . Even I search on google but not getting any good idea or solution. Please help me . Regards Jitendra Jha

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CentOS-announce Digest, Vol 89, Issue 2
by centos-announce-request＠centos.org 10 Jul '12

10 Jul '12

Send CentOS-announce mailing list submissions to centos-announce(a)centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-request(a)centos.org You can reach the person managing the list at centos-announce-owner(a)centos.org When replying, please edit your Subject line so it is more specific than "Re: Contents of CentOS-announce digest..." Today's Topics: 1. Release for CentOS-6.3 i386 and x86_64 (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Mon, 09 Jul 2012 22:10:09 +0100 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] Release for CentOS-6.3 i386 and x86_64 To: CentOS Announcements List <centos-announce(a)centos.org> Message-ID: <4FFB48B1.8060901(a)centos.org> Content-Type: text/plain; charset=ISO-8859-1 We are pleased to announce the immediate availability of CentOS-6.3 for i386 and x86_64 Architectures. Release Notes for 6.3 are available at http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.3 - we recommend everyone looks through those once. CentOS-6.3 is based on the upstream release EL 6.3 and includes packages from all variants. All upstream repositories have been combined into one, to make it easier for end users to work with. All updates released since upstream 6.3 release are also released to the CentOS-6.3 mirrors. +++++++++++++++++++++++ Upgrading from CentOS-4 or CentOS-5: We recommend everyone run through a reinstall rather than attempt an inplace upgrade from CentOS-4 or CentOS-5. +++++++++++++++++++++++ Upgrading from CentOS-6.0 / 6.1 or 6.2 Unless you have edited your yum configs, a 'yum update' should move your machine seamlessly from any previous CentOS-6.x release to CentOS-6.3 +++++++++++++++++++++++ Downloading CentOS-6.3 for new installs: When possible, consider using torrents to run the downloads. Usually its also the fastest means to download the distro. Torrent files for the DVD's are available at : http://mirror.centos.org/centos/6.3/isos/i386/CentOS-6.3-i386-bin-DVD1to2.t… http://mirror.centos.org/centos/6.3/isos/x86_64/CentOS-6.3-x86_64-bin-DVD1t… You can also use a mirror close to you : http://www.centos.org/modules/tinycontent/index.php?id=30 Most mirrors will allow direct DVD downloads over http, ftp and rsync. Please keep in mind that not all mirrors are currently updated, some might take upto another 24 hours before they have all the content. We have also made efforts to try and ensure that most install types and roles can be run from DVD-1 itself. +++++++++++++++++++++++ sha1sum for the CentOS-6.3 ISOS: i386: 541f98e36a7034ab3b470ddf5e2232df3829983e CentOS-6.3-i386-bin-DVD1.iso 44d9e8652af683b844138ea2ea03e6772c18a613 CentOS-6.3-i386-bin-DVD2.iso c596411085110dbb67fb030e667ae054afb413c8 CentOS-6.3-i386-minimal.iso 51dcbf68ddc0fc2907ecbba055bf041dc8ae7ca9 CentOS-6.3-i386-netinstall.iso x86_64: eaa52f3d1ccf2df3b03e064fb0fa6168be28a4d4 CentOS-6.3-x86_64-bin-DVD1.iso 29eee5946372ed29de509b9604d895b99d36a33f CentOS-6.3-x86_64-bin-DVD2.iso 09801301433c8dc1a93d732790f9a4d8ca7895e6 CentOS-6.3-x86_64-minimal.iso c85069ee289d6eb279ba1c1ab0c259513302b8fd CentOS-6.3-x86_64-netinstall.iso +++++++++++++++++++++++ Sources and Debuginfo packages: SRPMS and debuginfo packages are released to vault.centos.org. +++++++++++++++++++++++ LiveCD and LiveDVD We will be releasing the LiveCD and LiveDVD images in the next few days for both i386 and x86_64. +++++++++++++++++++++++ CentOS on PowerPC Work is under-way to bring CentOS-6 to the powerpc platform and we hope to have a Beta CentOS-6.3 release by the end of August. +++++++++++++++++++++++ Getting Help: The best place to start when looking for help with CentOS is at the wiki ( http://wiki.centos.org/GettingHelp ) which lists various options and communities who might be able to help. If you think there is a bug in the system, do report it at http://bugs.centos.org/ - but keep in mind that the bugs system is *not* a support mechanism. +++++++++++++++++++++++ Contributing and joining the project: We are always looking for people to join and help with various things in the project. If you are keen to help out a good place to start is the wiki page at http://wiki.centos.org/Contribute . If you have questions or a specific area you would like to contribute towards that is not covered on that page, feel free to drop in on #centos-devel(a)irc.freenode.net for a chat or email the centos-devel list (http://lists.centos.org) +++++++++++++++++++++++ Thanks to everyone who contributed towards making CentOS 6.3, specially the effort put in, as always, by the QA team. A special shout out to all the donors who have contributed hardware, network connectivity, hosting and resources over the years. The CentOS project now has a fairly well setup resource pool, purely thanks to the donors. Enjoy! -- Karanbir Singh <kbsingh(a)centos.org> The CentOS Project {http://www.centos.org} irc: z00dax(a)irc.freenode.net ( #centos, #centos-devel ) ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 89, Issue 2 **********************************************

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CentOS 5.8 crash/freeze running VMware
by Michael Eager 10 Jul '12

10 Jul '12

Hi -- I have a server running CentOS 5.8. It has a 6-core AMD processor, 16Gb memory, and a RAID 5 file system. It serves as both a file server and to run several VMware virtual machines. The guest machines run Windows 7 and various versions of Linux. The system is running the latest version of VMware Workstation. Until recently, I started VMs using the VMware Workstation GUI. The system has been very stable and seldom crashes. Recently, I set up an init script to start several VMs at boot time using the vmrun command. This appeared to work correctly, but the system has become unstable, freezing at various times. When the system freezes, there is no console response and it does not respond to a ping. There is nothing in syslog to indicate any error. The script started 8 VMs. I've cut back to now running 4 VMs and the system appears stable. Is there some relation between the number of cores and the number of VMs one can run? Is there something else which might cause the system to crash when running multiple VMs? Any suggestions to identify why the system crashed? -- Michael Eager eager(a)eagercon.com 1960 Park Blvd., Palo Alto, CA 94306 650-325-8077

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Re: [CentOS] [CentOS-announce] Release for CentOS-6.3 i386 and x86_64
by Leonard den Ottolander 10 Jul '12

10 Jul '12

Hello CentOS crew, On Mon, 2012-07-09 at 22:10 +0100, Karanbir Singh wrote: > We are pleased to announce the immediate availability of CentOS-6.3 > for i386 and x86_64 Architectures. Release Notes for 6.3 > are available at http://wiki.centos.org/Manuals/ReleaseNotes/CentOS6.3 - > we recommend everyone looks through those once. Thank you all for yet another release and all the effort you put in to provide us this great distro. Thank you very much! Regards, Leonard. -- mount -t life -o ro /dev/dna /genetic/research

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run fsck manually
by Jerry Geis 10 Jul '12

10 Jul '12

Is there a way in centos to just go ahead and do this automatically? /dev/sdal: Unexpected Inconsistency; [FAILED] Run fsck Manually (ie. Without –a or –p options) ***An error occurred during the File system check ***Dropping you to a shell; system will reboot when you leave the shell Give root password for Maintenance (or type Control-D to continue) I have some remote stations - and if something goes wrong as it did, I just want the fsck to be ran automatically and auto reboot Can the behaviour be changed in a config file? Jerry

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