[CentOS-announce] CESA-2012:0743 Important CentOS 6 kernel Update
CentOS Errata and Security Advisory 2012:0743 Important
Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-0743.html
The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )
i386:
ea56dcbea54d7249587d63c247dd5cda34b92a3cef1b281c82441400ef71
kernel-2.6.32-220.23.1.el6.i686.rpm
e47fb9d96ad61173552f60a5e10bd6a81a30f1a3b35327bf8dbabfed7616e5e2
kernel-debug-2.6.32-220.23.1.el6.i686.rpm
c94d9f48253cdf655c88366fd7d2341e4d3247c77f266a5a14abf372a4cefc03
kernel-debug-devel-2.6.32-220.23.1.el6.i686.rpm
0e269b17567c91f68f9b8926de52c331515f71efb2575a42f297a561ec9a1943
kernel-devel-2.6.32-220.23.1.el6.i686.rpm
c1a415fcb071c2eb3f0337d55063590a3d45a2185a253b3ab8092569e24970cb
kernel-doc-2.6.32-220.23.1.el6.noarch.rpm
ae35c0d77e4968b882a4f419ca00c87171ae23f909f0ddefb61316e3c33b6676
kernel-firmware-2.6.32-220.23.1.el6.noarch.rpm
5c98cd2662d7a7350ce19c95f5666c0bd8db7a7a1f85a4aac5eec89cdd6d3b50
kernel-headers-2.6.32-220.23.1.el6.i686.rpm
766ad9e000c8e6d65a09352bb98956eaa0e92808de2e0621df05f6f6136fcfd8
perf-2.6.32-220.23.1.el6.i686.rpm
adb363026b40404f4a6e445b6d247787a51f4c270e9a477a5704bbb1b9bdacfd
python-perf-2.6.32-220.23.1.el6.i686.rpm
x86_64:
2d950cad03e58fbe41b18ea9f676e9f8035c50e1110e35d7ade84357d531b0b0
kernel-2.6.32-220.23.1.el6.x86_64.rpm
cbdc58c22ea03c12a2a06c56d448d3fabeb88cb0e807b801b8f7366e7dc5753d
kernel-debug-2.6.32-220.23.1.el6.x86_64.rpm
8d4a7488b3cf9797c4f0a2770a2b6545eebbd8db2f3675e8d72c47f2566792df
kernel-debug-devel-2.6.32-220.23.1.el6.x86_64.rpm
e1a91610aef2da26f16df08e67e7103c939e85b44b4161cc0ca19560059deb62
kernel-devel-2.6.32-220.23.1.el6.x86_64.rpm
5a612f281c420a93923e2c5d97af77dccf854838abe8e7b4e6e720a8e6416074
kernel-doc-2.6.32-220.23.1.el6.noarch.rpm
48310089aca9909efad1c362da7903e5df11b1d4483d2b6dc582c7c6f4094947
kernel-firmware-2.6.32-220.23.1.el6.noarch.rpm
9f57462f7fecf0b5e6f2e7fcb5280bd36b147e50193ed471ea174c4d173cea91
kernel-headers-2.6.32-220.23.1.el6.x86_64.rpm
56fc104e5deeece73a857a9b45c11a39e55142db0dfe3b35fc04f42380e6f33b
perf-2.6.32-220.23.1.el6.x86_64.rpm
35d3b8d75b5e913692f1db7c6b255232bb906feb5b737251eeb8f1f36713b8fd
python-perf-2.6.32-220.23.1.el6.x86_64.rpm
Source:
ead5c509c3877ce23787bf2cafb47c31cf9c1dfb39976a372d5f36f1953a710c
kernel-2.6.32-220.23.1.el6.src.rpm
--
Johnny Hughes
CentOS Project { http://www.centos.org/ }
irc: hughesjr, #cen...@irc.freenode.net
___
CentOS-announce mailing list
CentOS-announce@centos.org
http://lists.centos.org/mailman/listinfo/centos-announce
[CentOS-virt] Basic shared storage + KVM
Hi, I am trying to set up a shared iscsi storage to serve 6 kvm hypervisors running centos 6.2. I export an LVM from iscsi and configured virt-manager to see the iscsi space as LVM storage (a single storage pool). I can create space on this LVM storage pool directly from virt-manager and I am already running a couple of sample VMs, that do migrate from one hv to the other. This configuration has a problem: when I create a new LV on the LVM storage pool to host a new VM, the HV where I am creating the virtual machine on sees the LV as status available, while the others see it as NOT available. In some circumstances this can crash libvirtd. To fix this I generally issue: vgchange -an; sleep 1; vgchange -ay but sometimes this fails with error: device-mapper; create ioctl failed: Device or resource busy and anyway it's not very convenient to issue this command on every node every time a new LV is created. Can anyone suggest a solution (if any) to this problem? Keep in mind that the basic concept behind this approach is to keep things as simple as possible. I don't want to configure a cluster or any other complicated tool to simply be able to migrate VMs from one HV to another. Thanks, Andrea -- Andrea Chierici - INFN-CNAF Viale Berti Pichat 6/2, 40127 BOLOGNA Office Tel: +39 051 6092809 ICQ#2328798, MSN#ataruzatgmail.com, Skype#ataruz -- ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Basic shared storage + KVM
On Tue, 2012-06-19 at 18:21 +0200, Andrea Chierici wrote: Hi, I am trying to set up a shared iscsi storage to serve 6 kvm hypervisors running centos 6.2. I export an LVM from iscsi and configured virt-manager to see the iscsi space as LVM storage (a single storage pool). I can create space on this LVM storage pool directly from virt-manager and I am already running a couple of sample VMs, that do migrate from one hv to the other. This configuration has a problem: when I create a new LV on the LVM storage pool to host a new VM, the HV where I am creating the virtual machine on sees the LV as status available, while the others see it as NOT available. In some circumstances this can crash libvirtd. To fix this I generally issue: vgchange -an; sleep 1; vgchange -ay but sometimes this fails with error: device-mapper; create ioctl failed: Device or resource busy and anyway it's not very convenient to issue this command on every node every time a new LV is created. Can anyone suggest a solution (if any) to this problem? Keep in mind that the basic concept behind this approach is to keep things as simple as possible. I don't want to configure a cluster or any other complicated tool to simply be able to migrate VMs from one HV to another. Thanks, Andrea Please help me understand why you are doing it this way? I'm using Xen with integrated storage, but I've been considering separating my storage from my virtual hosts. Conceptually, we can ignore the Xen/KVM difference for this discussion. I would imagine using LVM on the storage server then setting the LVs up as iSCSI targets. On the virtual host, I imagine I would just configure the new device and hand it to my VM. ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Basic shared storage + KVM
Hi, Please help me understand why you are doing it this way? I'm using Xen with integrated storage, but I've been considering separating my storage from my virtual hosts. Conceptually, we can ignore the Xen/KVM difference for this discussion. I would imagine using LVM on the storage server then setting the LVs up as iSCSI targets. On the virtual host, I imagine I would just configure the new device and hand it to my VM. I am open to any suggestion. I am not really an expert of iscsi, so I don't know what is the best way to implement a solution where a small group of hv support live migration with a shared storage. This way looked rather straightforward and for some level, documented on official redhat manuals. The problem is that there is no mention about this LVM problem :( Initially I tried configuring the raw iscsi device ad storage pool but virt-manager reported it was 100% occupied even if that was not true (indeed 0% was occupied). Andrea ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-es] Problemas para instalar el programa Gaussian
Hola a todos. Tengo un problema para instalar el programa Gaussian 03 Los pasos que realizo son los siguiente. Viene un archivo que viene comprimido g03.tar.gz, lo descomprimo en la siguiente ruta /opt/ y creo un directorio llamado g03. Cambio los permisos de Grupo ... chown -R root:users g03 Luego, doy todos los permisos chmod 777 g03 Ejecuto script para que funcione el programa y calcule # ! /bin/sh source /opt/g03/bsd/g03.profile /opt/g03/g03 /tmp/ygg-IPCM-01.gjf Y me muestra este mensaje de error... /opt/g03/g03: error while loading shared libraries: util.so: cannot open shared object file: No such file or directory Lo que hice fue agregar en el archivo /etc/profile las siguiente líneas. export PATH=$PATH:/opt/g03 LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/g03 export LD_LIBRARY_PATH Pero sigue mostrando el mismo mensaje de error. /opt/g03/g03: error while loading shared libraries: util.so: cannot open shared object file: No such file or directory El Centos que tengo instalado es ...CentOS 6.2 --- Linux 3.4.2-1.el6.elrepo.x86_64 Desde ya muchas gracias y si alguien lo tiene instalado les voy agradecer por su respuesta. Saludos Luciano ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS-es] Problemas para instalar el programa Gaussian
El 19 de junio de 2012 14:02, Luciano Andrés Chiarotto lachiaro...@gmail.com escribió: Hola a todos. Tengo un problema para instalar el programa Gaussian 03 Los pasos que realizo son los siguiente. Viene un archivo que viene comprimido g03.tar.gz, lo descomprimo en la siguiente ruta /opt/ y creo un directorio llamado g03. Cambio los permisos de Grupo ... chown -R root:users g03 Luego, doy todos los permisos chmod 777 g03 Ejecuto script para que funcione el programa y calcule # ! /bin/sh source /opt/g03/bsd/g03.profile /opt/g03/g03 /tmp/ygg-IPCM-01.gjf Y me muestra este mensaje de error... /opt/g03/g03: error while loading shared libraries: util.so: cannot open shared object file: No such file or directory Lo que hice fue agregar en el archivo /etc/profile las siguiente líneas. export PATH=$PATH:/opt/g03 LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/opt/g03 export LD_LIBRARY_PATH Pero sigue mostrando el mismo mensaje de error. /opt/g03/g03: error while loading shared libraries: util.so: cannot open shared object file: No such file or directory El Centos que tengo instalado es ...CentOS 6.2 --- Linux 3.4.2-1.el6.elrepo.x86_64 Desde ya muchas gracias y si alguien lo tiene instalado les voy agradecer por su respuesta. Saludos Luciano ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es Cordial saludo. Luciano, debes instalar el paquete que contenga la librería que te esta haciendo falta para que puedas terminar la instalación del producto. Buscando en rpm.pbone.net encontre que para centos 6 el paquete perl-params-utils2 contiene la librería que necesitas. Saludos. Carlos R!. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS] replace string with sed but not the first one
Thanks - Oorspronkelijk e-mail - Van: Mark Pryor tlvie...@yahoo.com Aan: CentOS mailing list centos@centos.org Verzonden: Dinsdag 19 juni 2012 07:36:54 Onderwerp: Re: [CentOS] replace string with sed but not the first one - Original Message - From: mav...@telenet.be mav...@telenet.be To: centos@centos.org Cc: Sent: Monday, June 18, 2012 10:30 PM Subject: [CentOS] replace string with sed but not the first one Hi, We have a the following file [ip-map] # Unchanged IP addresses: # Please review default IP addresses mapping below: 192.168.1.10 shared - 192.168.123.6 shared [namexx] 192.168.1.10 naam 192.168.1.10 We want to replace 192.168.1.10 to a other string but i don't want to change te first one. --- cat cml.txtEOL [ip-map] # Unchanged IP addresses: # Please review default IP addresses mapping below: 192.168.1.10 shared - 192.168.123.6 shared [namexx] 192.168.1.10 naam 192.168.1.10 EOL sed -i -e 's/192.168.1.10$/192.168.1.11/g' cml.txt -- Mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] vlc?
Le 18/06/2012 22:00, m.r...@5-cent.us a écrit : I think you didn't read all of what I asked: none of the std. repos for CentOS have it (nor for 6.2); it seems to be at repoforge, yes, I do know it's not in centos base, but as far as third party repos go repoforge is as standard as it gets. If you have epel configured and active you can get conflicts though. If you enable only centos and repoforge installing vlc should work, otherwise it means you have already installed some packages from another third party repo that cause a conflict. vlc does have a lot of deps, as do most other media players. That's not something to worry about. BTW you may want to try xine and mplayer as well, also available in repoforge and also very good players. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] we want to delete all files in a folder except the files with the most recent date
Hi, We want to delete all files in a folder except the files with the most recent date example ls -l jun 3 10:45 file1 jun 3 12:20 file2 jun 2 10:20 file3 jun 2 05:00 file4 jun 1 12:00 file5 jun 1 10:00 file6 jun2 en jun1 must be deleted regards, ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] we want to delete all files in a folder except the files with the most recent date
On 06/19/12 12:26 AM, mav...@telenet.be wrote: We want to delete all files in a folder except the files with... man find I suggest you get a book on basic unix systems management. -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What would cause dbus-daemon to fork() bomb?
For some reason, my system (64-bit, CentOS 5.8) has started to have a strange problem: dbus-daemon fork() bombing, typically overnight. The machine has been fine for months and months. What could cause this? This is my home desktop (it is also a server on my lan: dhcp, ldap, dns, web, etc.). -- Robert Heller -- 978-544-6933 / hel...@deepsoft.com Deepwoods Software-- http://www.deepsoft.com/ () ascii ribbon campaign -- against html e-mail /\ www.asciiribbon.org -- against proprietary attachments ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Configure Kickstart
Dear Friend , I want you help to configure kickstart on my centos5.4 server . I search on google and found so many way to configure it even on centos web site also. But It is not working and i am know so I can not understand it. So please send me link that i can understand and configure it. -- Regards Jitendra Jha ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] we want to delete all files in a folder except the files with the most recent date
#!/bin/sh
find /files/* -mtime +2 -exec rm {} \;
On 6/19/2012 12:26 AM, mav...@telenet.be wrote:
Hi,
We want to delete all files in a folder except the files with the most recent
date
example
ls -l
jun 3 10:45 file1
jun 3 12:20 file2
jun 2 10:20 file3
jun 2 05:00 file4
jun 1 12:00 file5
jun 1 10:00 file6
jun2 en jun1 must be deleted
regards,
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Configure Kickstart
From: jiten jha jitenjh...@googlemail.com I want you help to configure kickstart on my centos5.4 server . I search on google and found so many way to configure it even on centos web site also. But It is not working and i am know so I can not understand it. So please send me link that i can understand and configure it. http://www.microsofttranslator.com/bv.aspx?from=ento=hia=http://fedoraproject.org/wiki/Anaconda/Kickstart JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Configure Kickstart
On Jun 19, 2012 9:04 AM, John Doe jd...@yahoo.com wrote: From: jiten jha jitenjh...@googlemail.com I want you help to configure kickstart on my centos5.4 server . I search on google and found so many way to configure it even on centos web site also. But It is not working and i am know so I can not understand it. So please send me link that i can understand and configure it. http://www.microsofttranslator.com/bv.aspx?from=ento=hia=http://fedoraproject.org/wiki/Anaconda/Kickstart JD ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos The anaconda guys update that resource as they go along. As the bleeding edge of anaconda docs, many described features won't even be realized in the most recent Fedora release. However, the Installation Guides at https://docs.fedoraproject.org should reflect the feature set of a given anaconda version, and are already translated into many languages. The RHEL Installation Guide also documents the kickstart process. --pete ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Deleting Files
I want to safely delete all files in a certain directory that are exactly 32 characters long. This is on CentOS 5.x. How would I do that? Let me guess; homework... 'cos this sure ain't a CentOS question! No, cluttered directory. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-announce Digest, Vol 88, Issue 11
Send CentOS-announce mailing list submissions to
centos-annou...@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-requ...@centos.org
You can reach the person managing the list at
centos-announce-ow...@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. CESA-2012:0744 Moderate CentOS 6 python Update (Johnny Hughes)
2. CESA-2012:0743 Important CentOS 6 kernel Update (Johnny Hughes)
--
Message: 1
Date: Mon, 18 Jun 2012 16:35:36 +
From: Johnny Hughes joh...@centos.org
Subject: [CentOS-announce] CESA-2012:0744 Moderate CentOS 6 python
Update
To: centos-annou...@centos.org
Message-ID: 20120618163536.ga1...@chakra.karan.org
Content-Type: text/plain; charset=us-ascii
CentOS Errata and Security Advisory 2012:0744 Moderate
Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-0744.html
The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )
i386:
68b40bb24637e5151d56ff980b14ede5db07951b6325d9a54ead3498527e65fd
python-2.6.6-29.el6_2.2.i686.rpm
8bcda8f75bde9eae4b89b264a28be6596a5a0bbe74caa150c745e0c517f59533
python-devel-2.6.6-29.el6_2.2.i686.rpm
a97bcae9e9764c21665fd4b43f3ef67897b8aa336c997078b5b079df1a3f458b
python-libs-2.6.6-29.el6_2.2.i686.rpm
0d659305707e6e7eabbdbf14b06367a4c2220c7c8446469d02851d1d9291a25d
python-test-2.6.6-29.el6_2.2.i686.rpm
d45f3d643582177adf242981bf66c89a8bcdf048bd64cdfceed6248a5e07364a
python-tools-2.6.6-29.el6_2.2.i686.rpm
5f5c9798bf941d3061a159484a1816b29cef3928404eda6da69ceb661d6439d3
tkinter-2.6.6-29.el6_2.2.i686.rpm
x86_64:
68b40bb24637e5151d56ff980b14ede5db07951b6325d9a54ead3498527e65fd
python-2.6.6-29.el6_2.2.i686.rpm
9d5f64d06c7cc75c166f635bd8d0a842d999d5a1f46ba51eb57c2b4ce3ac09f1
python-2.6.6-29.el6_2.2.x86_64.rpm
8bcda8f75bde9eae4b89b264a28be6596a5a0bbe74caa150c745e0c517f59533
python-devel-2.6.6-29.el6_2.2.i686.rpm
cd2eeb31d0c9795045d7fb38abe545193393af71257d98e382ca2a3c5d314e51
python-devel-2.6.6-29.el6_2.2.x86_64.rpm
a97bcae9e9764c21665fd4b43f3ef67897b8aa336c997078b5b079df1a3f458b
python-libs-2.6.6-29.el6_2.2.i686.rpm
901dd463ec89fb78dfc7f67e23f3d045422fd2d5a83d4d2bfa0ec4ea4aa4f929
python-libs-2.6.6-29.el6_2.2.x86_64.rpm
de7ddc6b116cd5b88aabb4d6b00d2f41bc0f95aa247c6e21790f59e78c58464b
python-test-2.6.6-29.el6_2.2.x86_64.rpm
00a7b81b38b804b71667f45570c54c5910c4d53c08aeb8072d21d4a381c5f4ac
python-tools-2.6.6-29.el6_2.2.x86_64.rpm
98339b5d758e08f8e9b6753c403da3879250b2d474197727cb417263f902efdf
tkinter-2.6.6-29.el6_2.2.x86_64.rpm
Source:
e6e6fdbb082ebe1240c55739e9ba357a86fd37a59b757fa51faf174e18526c96
python-2.6.6-29.el6_2.2.src.rpm
--
Johnny Hughes
CentOS Project { http://www.centos.org/ }
irc: hughesjr, #cen...@irc.freenode.net
--
Message: 2
Date: Tue, 19 Jun 2012 10:27:24 +
From: Johnny Hughes joh...@centos.org
Subject: [CentOS-announce] CESA-2012:0743 Important CentOS 6 kernel
Update
To: centos-annou...@centos.org
Message-ID: 20120619102724.ga20...@chakra.karan.org
Content-Type: text/plain; charset=us-ascii
CentOS Errata and Security Advisory 2012:0743 Important
Upstream details at : https://rhn.redhat.com/errata/RHSA-2012-0743.html
The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )
i386:
ea56dcbea54d7249587d63c247dd5cda34b92a3cef1b281c82441400ef71
kernel-2.6.32-220.23.1.el6.i686.rpm
e47fb9d96ad61173552f60a5e10bd6a81a30f1a3b35327bf8dbabfed7616e5e2
kernel-debug-2.6.32-220.23.1.el6.i686.rpm
c94d9f48253cdf655c88366fd7d2341e4d3247c77f266a5a14abf372a4cefc03
kernel-debug-devel-2.6.32-220.23.1.el6.i686.rpm
0e269b17567c91f68f9b8926de52c331515f71efb2575a42f297a561ec9a1943
kernel-devel-2.6.32-220.23.1.el6.i686.rpm
c1a415fcb071c2eb3f0337d55063590a3d45a2185a253b3ab8092569e24970cb
kernel-doc-2.6.32-220.23.1.el6.noarch.rpm
ae35c0d77e4968b882a4f419ca00c87171ae23f909f0ddefb61316e3c33b6676
kernel-firmware-2.6.32-220.23.1.el6.noarch.rpm
5c98cd2662d7a7350ce19c95f5666c0bd8db7a7a1f85a4aac5eec89cdd6d3b50
kernel-headers-2.6.32-220.23.1.el6.i686.rpm
766ad9e000c8e6d65a09352bb98956eaa0e92808de2e0621df05f6f6136fcfd8
perf-2.6.32-220.23.1.el6.i686.rpm
adb363026b40404f4a6e445b6d247787a51f4c270e9a477a5704bbb1b9bdacfd
python-perf-2.6.32-220.23.1.el6.i686.rpm
x86_64:
2d950cad03e58fbe41b18ea9f676e9f8035c50e1110e35d7ade84357d531b0b0
kernel-2.6.32-220.23.1.el6.x86_64.rpm
cbdc58c22ea03c12a2a06c56d448d3fabeb88cb0e807b801b8f7366e7dc5753d
kernel-debug-2.6.32-220.23.1.el6.x86_64.rpm
8d4a7488b3cf9797c4f0a2770a2b6545eebbd8db2f3675e8d72c47f2566792df
kernel-debug-devel-2.6.32-220.23.1.el6.x86_64.rpm
Re: [CentOS] Best way to duplicate a live Centos 5 server?
Subject: Re: [CentOS] Best way to duplicate a live Centos 5 server? To: CentOS mailing list centos@centos.org On Mon, Jun 18, 2012 at 11:21 AM, Cal Sawyer ca...@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 lesmikes...@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 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Resizing est4 filesystem while mounted
Replying to the daily digest, with my response at the bottom. Message: 18 Date: Mon, 18 Jun 2012 22:28:31 +0200 From: Dennis Jacobfeuerborn denni...@conversis.de Subject: Re: [CentOS] Resizing est4 filesystem while mounted To: centos@centos.org Message-ID: 4fdf8f6f.8030...@conversis.de Content-Type: text/plain; charset=ISO-8859-1 On 06/18/2012 10:09 PM, Jeff Boyce wrote: Replying to the daily digest, with my response at the bottom. Message: 13 Date: Fri, 15 Jun 2012 12:22:08 -0700 From: Ray Van Dolson ra...@bludgeon.org Subject: Re: [CentOS] Resizing est4 filesystem while mounted To: centos@centos.org Message-ID: 20120615192207.ga23...@bludgeon.org Content-Type: text/plain; charset=us-ascii On Fri, Jun 15, 2012 at 12:10:09PM -0700, Jeff Boyce wrote: Greetings - I had a logical volume that was running out of space on a virtual machine. I successfully expanded the LV using lvextend, and lvdisplay shows that it has been expanded. Then I went to expand the filesystem to fill the new space (# resize2fs -p /dev/vde1) and I get the results that the filesystem is already xx blocks long, nothing to do. If I do a # df -h, I can see that the filesystem has not been extended. I could kick the users off the VM, reboot the VM using a GParted live CD and extend the filesystem that way, but I thought that it was possible to do this live and mounted? The RH docs say this is possible; the man page for resize2fs also says it is possible with ext4. What am I missing here? This is a Centos 6.2 VM with an ext4 filesystem. The logical volumes are setup on the host system which is also a Centos 6.2 system. Try resize4fs (assuming your FS is ext4). Ray Well, I have never seen a reference to resize4fs before (and yes my FS is ext4). It is not on my Centos 6.2 system, and doing a little searching through repositories for that specifically, or e4fsprogs, and I can't find it anywhere to even try it. Any google reference seems to point back to resize2fs. I ended up booting a live SystemRescueCD and using GParted via the GUI. My notes indicate that is what I had done previously also. I am still stumped, everything that I have read indicates that resize2fs can do a live resizing on ext4 file systems. Can anybody confirm or deny this? Is the reason I can't do this because it is on an LVM logical volume? Thanks. Please post some details about your storage topology. Without this information its not really possible to be sure what is going on. resizefs cannot work as long as the underlying layers don't see any change in size and you didn't seem to look for that. Regards, Dennis I provided some of that information in my original post, but if you can help explain why I couldn't seem to resize the file system while mounted here is more information. Host system is Centos 6.2 on a Dell PE T610 with hardware raid on a PERC H700. Raid 5 is setup across three disks with a fourth hot spare. I have created a volume group within the raid 5 encompassing most of my drive space. Within the VG I have created numerous logical volumes that are assigned to specific systems. Volume Group: vg_mei Logical Volumes: lv_earthroot lv_earthswap lv_earthvar lv_sequoiaroot lv_sequoiaswap lv_sequoiavar lv_sequoiahome lv_sequoiaecosystem Earth is my host system and Sequoia is one of the guest systems. lv_sequoiaecosystem is the space dedicated to our Samba server and is the LV that I was expanding to make more space available to the rest of the staff. I had successfully extended lv_sequoiaecosystem using the following command from root on earth (lvextend -L+50G /dev/vg_mei/lv_sequoiaecosystem). Issuing the command (lvdisplay /dev/vg_mei/lv_sequoiaecosystem) following this showed that the LV was successfully extended from 100 to 150 GB. I then logged onto sequoia as root and issued a df -h to determine which device needed the file system to be resized (/dev/vde1). The output below is current, after I resized the filesystem using GParted. [root@sequoia ~]# df -h FilesystemSize Used Avail Use% Mounted on /dev/vda2 4.5G 2.5G 1.8G 59% / tmpfs1004M 112K 1004M 1% /dev/shm /dev/vda1 485M 55M 406M 12% /boot /dev/vde1 148G 85G 56G 61% /ecosystem /dev/vdd1 20G 1.3G 18G 7% /home /dev/vdc1 2.0G 266M 1.7G 14% /var Then from root on sequoia I issued the command (resize2fs -p /dev/vde1) and got back the result that the filesystem is already 26214144 blocks long, nothing to do. That is when I posted my first question about not being able to resize a live mounted filesystem. Is that enough information for your question, or is there something that I am not providing? Thanks. Jeff ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Best way to duplicate a live Centos 5 server?
On Tue, Jun 19, 2012 at 12:03 PM, Cal Sawyer ca...@blue-bolt.com wrote: You're right - documentation is pretty dire. Guess i'm not alone in hating doing it. Yes, I really, really wish the stuff they are doing was documented, somewhere, anywhere. Not just how to use the program itself which is supposed to 'just work' unattended once you set it up, but the black magic of how they detect and reproduce all of the hardware, lvm, raid, filesystem, etc. across different distributions and versions. 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. USB is sort of 'hands-on' for something that should be unattended, and adds a lot of unpredictable messiness in drive detection, boot order, etc.All you really have to do is export some NFS space and point ReaR to it. At least that is the easy way to get started. If you have another Linux box, just plug your USB drive in there and access it over NFS... problem solved. Clonezilla-live plays in this space too, but it doesn't do raid or multiple disks at once, and you have to shut down to take the image. My 'ideal' system would be to have ReaR generate a directory of what will be on the boot iso leaving that somewhere on the host without actually making the image. Then use backuppc to back up the whole host and its normal duplicate-pooling mechanism will keep the extra copies of the tools from taking extra space. Then when/if you need a bare-metal restore, you would first grab the directory of the iso contents, burn a boot CD, let that reconstruct the filesystem, then tell backuppc to restore to it. That way would be completely automatic and always be up to date, with the advantage of backuppc's efficient storage and easy online access to individual files and directories. If you don't mind wasting a small amount of space for the isos, I think that approach would already work if you tell ReaR to just make the boot image and to wait for an external program to do the restore after the filesystem has been rebuilt. 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. Yes, I've even modified the filesystem layout file to go from a software RAID to a non-RAID, and to change partition sizes during the restores. If it was documented, that capability by itself would be fantastic. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] PMA attacks
It appears to be a low-level attack, not so frequent as to be banned permanently, just a number of times a day. I did google on this, and I gather it's looking for phpmyadmin. We've been getting one from one specific network in Russia for weeks Here are more information about 91.201.64.24: [Querying whois.ripe.net] [whois.ripe.net] snip % Information related to '91.201.64.0 - 91.201.67.255' inetnum: 91.201.64.0 - 91.201.67.255 netname: Donekoserv descr: DonEkoService Ltd country: RU snip But now I'm seeing the same from Azerbaijan, and France, and elsewhere. Two questions: first, are other folks seeing this? and second, I can't imagine malware this stupid, to keep hitting the same sites over and over when it's not found, rather than bad password or user, so I'm wondering if this could be a targetting vector for an upcoming serious attack using another vector. Opinions? mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] PMA attacks
On 6/19/2012 2:31 PM, m.r...@5-cent.us wrote: It appears to be a low-level attack, not so frequent as to be banned permanently, just a number of times a day. I did google on this, and I gather it's looking for phpmyadmin. We've been getting one from one specific network in Russia for weeks Here are more information about 91.201.64.24: [Querying whois.ripe.net] [whois.ripe.net] snip % Information related to '91.201.64.0 - 91.201.67.255' inetnum: 91.201.64.0 - 91.201.67.255 netname: Donekoserv descr: DonEkoService Ltd country: RU snip But now I'm seeing the same from Azerbaijan, and France, and elsewhere. Two questions: first, are other folks seeing this? and second, I can't imagine malware this stupid, to keep hitting the same sites over and over when it's not found, rather than bad password or user, so I'm wondering if this could be a targetting vector for an upcoming serious attack using another vector. Opinions? mark I also see these frequently. As for dumb script? Well there are plenty of those out there. And, if you care to, you can set up rules in Fail2Ban to auto block these. This brings up a question I have. We do virtualhosting and keep separate http logs for every website. I have not been running any Fail2Ban rules on those logs as many are very active and spread about. I suppose I could concentrate only on the error logs which would be much smaller. My question... is anybody running something like Fail2Ban under a situation like this and does it use much horsepower? -- John Hinton 877-777-1407 ext 502 http://www.ew3d.com Comprehensive Online Solutions ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
Arun Khan wrote: snip Following the instructions on CentOS Wiki http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 I installed a min. server in Linux KVM setup (script shown below) snip The system boots fine when both disks are available. When I remove either of the disks (delete the -drive file= line), the system boots to a point wherein the GRUB menu is displayed and the progress bar displays for a while till the white bar reaches about halfway point and then it: Kernel panic - not syncing: Attempted to kill init! snip fdisk -l root@centos62-raid1 ~ # fdisk -l Disk /dev/sda: 10.7 GB, 10737418240 bytes 255 heads, 63 sectors/track, 1305 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: 0x000e8353 Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 5231045 4194304 83 Linux /dev/sda310451176 1048576 82 Linux swap / Solaris snip Ok, I see that it's hardware 512b blocks, so you're not running into issues with 4k hardware blocks. I trust you installed grub on /dev/md0, which I assume is /dev/sda1 and /dev/sdb1? mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] PMA attacks
On 06/19/2012 08:31 PM, m.r...@5-cent.us wrote: It appears to be a low-level attack, not so frequent as to be banned permanently, just a number of times a day. I did google on this, and I gather it's looking for phpmyadmin. We've been getting one from one specific network in Russia for weeks Here are more information about 91.201.64.24: [Querying whois.ripe.net] [whois.ripe.net] snip % Information related to '91.201.64.0 - 91.201.67.255' inetnum: 91.201.64.0 - 91.201.67.255 netname: Donekoserv descr: DonEkoService Ltd country: RU snip But now I'm seeing the same from Azerbaijan, and France, and elsewhere. Two questions: first, are other folks seeing this? and second, I can't imagine malware this stupid, to keep hitting the same sites over and over when it's not found, rather than bad password or user, so I'm wondering if this could be a targetting vector for an upcoming serious attack using another vector. Opinions? Why is this stupid? Yes it might not find anything today but you might install it tomorrow. Since this is common I always put PMA (and similar tools) either in it's own management network that is only accessible using a tunnel or at least behind HTTP authentication. I've seen this exploited once and the attackers installed a few perl scripts that were launching attacks from the system. Regards, Dennis ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] My ROOT PASSWORD Is GETTING RESET After EVERY REBOOT
Hello there, I'm using CentOS v6.2 x86_64bit. I'm confuse and can't figured-it-out after I run my KVM virtual machine the root password is getting RESET after every reboot of my VM. Any help is very much appreciated. Thank you. ** *Please consider the environment before printing this email.* ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
On Wed, Jun 20, 2012 at 12:11 AM, m.r...@5-cent.us wrote: Arun Khan wrote: Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 523 1045 4194304 83 Linux /dev/sda3 1045 1176 1048576 82 Linux swap / Solaris snip Ok, I see that it's hardware 512b blocks, so you're not running into issues with 4k hardware blocks. I trust you installed grub on /dev/md0, which I assume is /dev/sda1 and /dev/sdb1? From the wiki instructions, there is no re-installation of GRUB, only a couple of changes in /boot/grub/grub.conf file installed by the regular installation on /dev/sda. During the RAID1 creation process the grub from /dev/sda would mirrored into the RAID1 device and appear on the MBR of both the disks. As I said in the OP, I do see the grub menu with either of the disks unplugged i.e. missing. The kernel does boot and the white progress bar goes upto about 50% when the kernel panic occurs. I will turn off the splash and see what comes up on the console. Gut feeling -- I suspect the problem is with the initrd image created with the dracut -- Arun Khan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
Arun Khan wrote: On Wed, Jun 20, 2012 at 12:11 AM, m.r...@5-cent.us wrote: Arun Khan wrote: Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 523 1045 4194304 83 Linux /dev/sda3 1045 1176 1048576 82 Linux swap / Solaris snip Ok, I see that it's hardware 512b blocks, so you're not running into issues with 4k hardware blocks. I trust you installed grub on /dev/md0, which I assume is /dev/sda1 and /dev/sdb1? From the wiki instructions, there is no re-installation of GRUB, only a couple of changes in /boot/grub/grub.conf file installed by the regular installation on /dev/sda. During the RAID1 creation process the grub from /dev/sda would mirrored into the RAID1 device and appear on the MBR of both the disks. As I said in the OP, I do see the grub menu with either of the disks unplugged i.e. missing. The kernel does boot and the white progress bar goes upto about 50% when the kernel panic occurs. I will turn off the splash and see what comes up on the console. Gut feeling -- I suspect the problem is with the initrd image created with the dracut For one thing, edit grub.conf and get *rid* of that idiot rhgb and quiet, so you can actually see what's happening. Sounds to me as though it's trying to switch root to a real drive from the virtual drive of the ramfs, and it's not working. One thing you *might* also try is before you boot, edit the kernel line in grub, and add rdshell at the end, so you boot into grub's rudimentary shell if/when it fails, and you can look around and find what it's seeing. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
On 06/20/2012 07:23 AM, Arun Khan wrote: On Wed, Jun 20, 2012 at 12:11 AM,m.r...@5-cent.us wrote: Arun Khan wrote: Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 5231045 4194304 83 Linux /dev/sda310451176 1048576 82 Linux swap / Solaris raid needs Id of fd rather than 83 to auto detect?? snip Ok, I see that it's hardware 512b blocks, so you're not running into issues with 4k hardware blocks. I trust you installed grub on /dev/md0, which I assume is /dev/sda1 and /dev/sdb1? From the wiki instructions, there is no re-installation of GRUB, only a couple of changes in /boot/grub/grub.conf file installed by the regular installation on /dev/sda. During the RAID1 creation process the grub from /dev/sda would mirrored into the RAID1 device and appear on the MBR of both the disks. As I said in the OP, I do see the grub menu with either of the disks unplugged i.e. missing. The kernel does boot and the white progress bar goes upto about 50% when the kernel panic occurs. I will turn off the splash and see what comes up on the console. Gut feeling -- I suspect the problem is with the initrd image created with the dracut -- Arun Khan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
Rob Kampen wrote: On 06/20/2012 07:23 AM, Arun Khan wrote: On Wed, Jun 20, 2012 at 12:11 AM,m.r...@5-cent.us wrote: Arun Khan wrote: Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 5231045 4194304 83 Linux /dev/sda310451176 1048576 82 Linux swap / Solaris raid needs Id of fd rather than 83 to auto detect?? Good catch. A quick google got me a page on filesystem types, which had this line: fd Linux raid partition with autodetect using persistent superblock snip mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Memory recognition in 6.2
Hi All: I have an HP DL380G5 server which I am loading CentOS 6.2 on and it does not appear to recognize all of the RAM installed on the server. The BIOS is reporting 26GB however top is reporting: Mem: 15720140k total, 418988k used, 15301152k free, 30256k buffers Swap: 17956856k total, 0k used, 17956856k free, 135536k cached and free is reporting: total used free shared buffers cached Mem: 15720140 418848 15301292 0 30256 135536 -/+ buffers/cache: 253056 15467084 Swap: 17956856 0 17956856 I have tried adding the mem= parameter to the /boot/grub/grub.conf file as in: title CentOS (2.6.32-220.17.1.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-220.17.1.el6.i686 ro [SNIP] initrd /initramfs-2.6.32-220.17.1.el6.i686.img mem=26624M but this has not appeared to work. Any suggestions would be gratefully appreciated. TIA Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
on 6/19/2012 3:37 PM Hugh E Cruickshank spake the following: Hi All: I have an HP DL380G5 server which I am loading CentOS 6.2 on and it does not appear to recognize all of the RAM installed on the server. The BIOS is reporting 26GB however top is reporting: Mem: 15720140k total, 418988k used, 15301152k free, 30256k buffers Swap: 17956856k total, 0k used, 17956856k free, 135536k cached and free is reporting: total used free shared buffers cached Mem: 15720140 418848 15301292 0 30256 135536 -/+ buffers/cache: 253056 15467084 Swap: 17956856 0 17956856 I have tried adding the mem= parameter to the /boot/grub/grub.conf file as in: title CentOS (2.6.32-220.17.1.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-220.17.1.el6.i686 ro [SNIP] initrd /initramfs-2.6.32-220.17.1.el6.i686.img mem=26624M but this has not appeared to work. Any suggestions would be gratefully appreciated. TIA Regards, Hugh It looks like you installed 32 bit OS... I don't think it sees over 16 gigs... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
title CentOS (2.6.32-220.17.1.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-220.17.1.el6.i686 ro [SNIP] initrd /initramfs-2.6.32-220.17.1.el6.i686.img mem=26624M Do i read that right? 26g of ram and you're using a non PAE x86 kernel? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On Tuesday 19 June 2012, Hugh E Cruickshank h...@forsoft.com wrote: I have an HP DL380G5 server which I am loading CentOS 6.2 on and it does not appear to recognize all of the RAM installed on the server. The BIOS is reporting 26GB however top is reporting: Mem: 15720140k total, 418988k used, 15301152k free, 30256k buffers Swap: 17956856k total, 0k used, 17956856k free, 135536k cached title CentOS (2.6.32-220.17.1.el6.i686) I can't find the limit for CentOS 6, but CentOS 5 x86 was limited to 16 Gb of RAM: https://www.centos.org/product.html . You should use x86_64. -- Yves Bellefeuille y...@storm.ca La Esperanta Civito ne rifuzas anticipe la kunlaboron de erarintoj, se ili konscias pri sia eraro. -- Heroldo Komunikas, n-ro 473. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Bug in Latest Adobe Flash Plugin
I'm running Centos 5.7 32 bit with Firefox 10.0.5 ESR Not sure if this has been mentioned on the list yet, but the latest version of Adobe flash-plugin 11.2.202 has a bug which causes it to hang and not play SWF files. I've been pulling my hair out trying to identify why I could not get any SWF videos to play. I finally found the answer here: https://bbs.archlinux.org/viewtopic.php?pid=1080414 I have downgraded the flash-plugin now to version 10.3.183 from rpmforge repo. It works fine now :) I've also added exclude=flash-plugin to the end of /etc/yum.conf file, to make sure this does not get upgraded again. Kind Regards, Keith Roberts --- Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] --- ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
From: Scott Silva Sent: June 19, 2012 15:51 It looks like you installed 32 bit OS... I don't think it sees over 16 gigs... Yes it is 32-bit but if there is a 16GB limit on memory then I am going to need to revert to CentOS 5. Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
From: Joseph L. Casale Sent: June 19, 2012 15:52 title CentOS (2.6.32-220.17.1.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-220.17.1.el6.i686 ro [SNIP] initrd /initramfs-2.6.32-220.17.1.el6.i686.img mem=26624M Do i read that right? 26g of ram and you're using a non PAE x86 kernel? It was my understanding that PAE is now built into the standard kernel but I will check on this further. Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On Tuesday 19 June 2012, Hugh E Cruickshank h...@forsoft.com wrote: Yes it is 32-bit but if there is a 16GB limit on memory then I am going to need to revert to CentOS 5. Same limit in CentOS 5. Is there a reason you don't want to use x86_64? -- Yves Bellefeuille y...@storm.ca La Esperanta Civito ne rifuzas anticipe la kunlaboron de erarintoj, se ili konscias pri sia eraro. -- Heroldo Komunikas, n-ro 473. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
From: Yves Bellefeuille Sent: June 19, 2012 15:55 I can't find the limit for CentOS 6, but CentOS 5 x86 was limited to 16 Gb of RAM: https://www.centos.org/product.html . You should use x86_64. If that is the case then both CentOS 5 and 6 are not viable for us. I will have to go for RHEL5 (or possibly 6) which does support the memory in 32-bit mode. The reason for the restriction to 32-bit is because of other software that we must run that does not work correctly on a 64-bit OS. Regards, Hugh -- Hugh E Cruickshank, Forward Software, www.forward-software.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
on 6/19/2012 4:22 PM Hugh E Cruickshank spake the following: From: Yves Bellefeuille Sent: June 19, 2012 15:55 I can't find the limit for CentOS 6, but CentOS 5 x86 was limited to 16 Gb of RAM: https://www.centos.org/product.html . You should use x86_64. If that is the case then both CentOS 5 and 6 are not viable for us. I will have to go for RHEL5 (or possibly 6) which does support the memory in 32-bit mode. The reason for the restriction to 32-bit is because of other software that we must run that does not work correctly on a 64-bit OS. Regards, Hugh You can always virtualize... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On 06/19/12 4:13 PM, Hugh E Cruickshank wrote: From: Joseph L. Casale Sent: June 19, 2012 15:52 title CentOS (2.6.32-220.17.1.el6.i686) root (hd0,0) kernel /vmlinuz-2.6.32-220.17.1.el6.i686 ro [SNIP] initrd /initramfs-2.6.32-220.17.1.el6.i686.img mem=26624M Do i read that right? 26g of ram and you're using a non PAE x86 kernel? It was my understanding that PAE is now built into the standard kernel but I will check on this further. If I recall correctly, PAE is limited to 16GB because the page tables are obscenely huge for more than that, and use over a gigabyte of the 32bit kernel space -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On 06/19/12 4:22 PM, Hugh E Cruickshank wrote: The reason for the restriction to 32-bit is because of other software that we must run that does not work correctly on a 64-bit OS. fix that other software. or run in 16GB. there's no excuse in 2012 for not supporting 64bit, even my budget laptop has 8GB of memory and a 64bit OS. as an example of the problems see this message, http://www.redhat.com/archives/rhelv5-list/2008-September/msg00194.html and its various followups... PAE was a kludge to let 32 bit OS's, normally limited to 4GB max memory address more. the kludge breaks things above 16GB in spite of the theoretical 64GB limit enforced by the hardware. also see this https://www.redhat.com/resourcelibrary/articles/articles-red-hat-enterprise-linux-6-technology-capabilities-and-limits EL *4* supported a nasty 'hugemem' kernel that could get you past 16GB but only at great overhead. this caused MANY problems and was discontinued in EL5 and 6 32bit systems, where 64bit is the correct choice for all modern servers. -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Deleting Files
find /whe/re -mtime +2 -exec echo {} \;
If you get Argument list too long error, you can use
find . -name * -print | xargs rm
--
Diego - Yo no soy paranoico! (pero que me siguen, me siguen)
___
CentOS mailing list
CentOS@centos.org
http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On Tuesday 19 June 2012, Hugh E Cruickshank h...@forsoft.com wrote: If that is the case then both CentOS 5 and 6 are not viable for us. I will have to go for RHEL5 (or possibly 6) which does support the memory in 32-bit mode. The limit's the same with RHEL 5 and 6. CentOS is bug-for-bug compatible with RHEL. The reason for the restriction to 32-bit is because of other software that we must run that does not work correctly on a 64-bit OS. Your 32-bit applications will be restricted to 4 Gb of memory each anyway. If you must use x86, memory over 16 Gb is pretty much wasted, unless you install x86_64 and virtualize x86 as necessary. -- Yves Bellefeuille y...@storm.ca La Esperanta Civito ne rifuzas anticipe la kunlaboron de erarintoj, se ili konscias pri sia eraro. -- Heroldo Komunikas, n-ro 473. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory recognition in 6.2
On 06/19/12 6:31 PM, Yves Bellefeuille wrote: Your 32-bit applications will be restricted to 4 Gb of memory each anyway. sctually, they only get 2 or 3gb of that for user space, the other 1 or 2gb of the 32bit space is used by the kernel which is in every process address space. I believe with PAE, you actually get LESS per process address space -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
On Wed, Jun 20, 2012 at 2:18 AM, m.r...@5-cent.us wrote: Rob Kampen wrote: On 06/20/2012 07:23 AM, Arun Khan wrote: On Wed, Jun 20, 2012 at 12:11 AM,m.r...@5-cent.us wrote: Arun Khan wrote: Device Boot Start End Blocks Id System /dev/sda1 * 1 523 4194304 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 523 1045 4194304 83 Linux /dev/sda3 1045 1176 1048576 82 Linux swap / Solaris raid needs Id of fd rather than 83 to auto detect?? Good catch. A quick google got me a page on filesystem types, which had this line: fd Linux raid partition with autodetect using persistent superblock But this is supposed to be RAID1 on the *entire* disks and not on the individual partitions. The instruction on the wiki clearly states do a regular install on the first disk (I did leave a few blocks at the end of the first disk as per the instructions) and then create a partitionable RAID1 md_d0. http://wiki.centos.org/HowTos/Install_On_Partitionable_RAID1 wiki quote .. Why would you want to have a system installed on a partitionable software RAID1? If you are installing a system on a partitionable RAID you can use the whole hard drive as a RAID component device, and since RAID1 is a mirror, you will be able to boot your system from any of the drives in case of failure without any additional tricks required to preserve bootloader configuration, etc. And when you need to repair a failed RAID volume with the whole hard drive as a RAID component, all you have to do is to insert a new hard drive and run mdadm --add; no partitioning or anything else required. ... Steps for both CentOS 5 6 1. Install CentOS using standard installer on the first hard disk, /dev/sda. Select manual partitioning during the installation, and leave at least 1 unit at the very end of the disk unpartitioned. You will be able to redeem most of this space back later. You need to reserve this space for mdadm which stores it's metadata at the last chunk of a raid volume. 2. Boot from the CentOS installation disk in the Rescue mode. The installer will ask you if you wish to mount an existing CentOS installation, you must refuse. 3. Build the software RAID1 using mdadm in degraded mode, with /dev/sda as the only drive: mdadm --create --metadata=0.90 --level=1 --raid-devices=2 /dev/md_d0 /dev/sda missing 4. Add the mirror drive /dev/sdb into the raid and check /proc/mdstat to see that the raid started building: mdadm --add /dev/md_d0 /dev/sdb cat /proc/mdstat ... /wiki quote -- Arun Khan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6.2 on partitionable mdadm RAID1 (md_d0) - kernel panic with either disk not present
On Wed, Jun 20, 2012 at 1:00 AM, m.r...@5-cent.us wrote: snip For one thing, edit grub.conf and get *rid* of that idiot rhgb and quiet, so you can actually see what's happening. Sounds to me as though it's trying to switch root to a real drive from the virtual drive of the ramfs, and it's not working. One thing you *might* also try is before you boot, edit the kernel line in grub, and add rdshell at the end, so you boot into grub's rudimentary shell if/when it fails, and you can look around and find what it's seeing. Will try your suggestion and report back. -- Arun Khan ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
