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Re: [CentOS] black display during installation of CentOS5.5
by Ritika Garg 22 Oct '10

22 Oct '10

I tried "linux nofb" and "linux xdriver=VESA" but the problem persists.

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OT: looking for network performance comparison chart
by Rudi Ahlers 22 Oct '10

22 Oct '10

Hi all, Does anyone have, or know of a comparison chart of the different network adapters, i.e. 1GB / 10GB, Infiniband, etc. And if possible with a few top brand NIC's and switches listed as well. I would like to see, for example, what the max throughput is of a 1GB NIC (and this could probably differ from PCI to PCIE-x1 to PCIE-x4), and 10GBE. Different switches would probably also have different ratings, but could a layer 2 switch & layer3 switch deliver the same performance for example? Basically I need to know what upload / download speeds I should be getting from the different networks, set aside other options like CPU / RAM / disc IO / etc. I have tried google already, but didn't get anything useful. -- Kind Regards Rudi Ahlers SoftDux Website: http://www.SoftDux.com Technical Blog: http://Blog.SoftDux.com Office: 087 805 9573 Cell: 082 554 7532

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CentOS-announce Digest, Vol 68, Issue 11
by centos-announce-request＠centos.org 22 Oct '10

22 Oct '10

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. CESA-2010:0788 Moderate CentOS 5 i386 pidgin Update (Karanbir Singh) 2. CESA-2010:0788 Moderate CentOS 5 x86_64 pidgin Update (Karanbir Singh) 3. CEBA-2010:0789 CentOS 5 x86_64 libbonobo Update (Karanbir Singh) 4. CEBA-2010:0789 CentOS 5 i386 libbonobo Update (Karanbir Singh) ---------------------------------------------------------------------- Message: 1 Date: Thu, 21 Oct 2010 22:51:36 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0788 Moderate CentOS 5 i386 pidgin Update To: centos-announce(a)centos.org Message-ID: <20101021225136.GA17099(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0788 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0788.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 6228eae54c2cda4f9b1d9745acbd3ca9 finch-2.6.6-5.el5_5.i386.rpm 5484179163bc96b389c3b7809edb062e finch-devel-2.6.6-5.el5_5.i386.rpm 067cf1b58841fe642d27c1ed3d9b9ebc libpurple-2.6.6-5.el5_5.i386.rpm f7270d9f7773b6700437cefca79569cd libpurple-devel-2.6.6-5.el5_5.i386.rpm 464cd34a3a227211c27c99d9f54784eb libpurple-perl-2.6.6-5.el5_5.i386.rpm e63fea4e7883694592d925374cc4787b libpurple-tcl-2.6.6-5.el5_5.i386.rpm 4dc54502461973c33eef50df7b1982eb pidgin-2.6.6-5.el5_5.i386.rpm c8d56f9b63d110a6cc98effab7ec8d26 pidgin-devel-2.6.6-5.el5_5.i386.rpm 328586eb986b99664f52273878398b37 pidgin-perl-2.6.6-5.el5_5.i386.rpm Source: bf281d91c9b425b8696544eaa2158f69 pidgin-2.6.6-5.el5_5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 2 Date: Thu, 21 Oct 2010 22:51:36 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CESA-2010:0788 Moderate CentOS 5 x86_64 pidgin Update To: centos-announce(a)centos.org Message-ID: <20101021225136.GA17113(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Security Advisory 2010:0788 Moderate Upstream details at : https://rhn.redhat.com/errata/RHSA-2010-0788.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: 88dc4a374446f5d5b2e0dd379f6e7922 finch-2.6.6-5.el5_5.i386.rpm 1e067757f0e37ff0b8660818cd6479c4 finch-2.6.6-5.el5_5.x86_64.rpm 1e6b9147e3b7742dca61940c0e48d35e finch-devel-2.6.6-5.el5_5.i386.rpm b24fcec1cba7972854bd8203fcd2df32 finch-devel-2.6.6-5.el5_5.x86_64.rpm 199742a356910080f727d0ec92fc65b0 libpurple-2.6.6-5.el5_5.i386.rpm 324e27530467d20282f9b784e2e31a6d libpurple-2.6.6-5.el5_5.x86_64.rpm b153ac1e92c757749210ec40ef5f26b8 libpurple-devel-2.6.6-5.el5_5.i386.rpm 4068d9cd61e1d0c75d82d7a217f64a40 libpurple-devel-2.6.6-5.el5_5.x86_64.rpm 124267f24e6bcfbedacea24d816915b4 libpurple-perl-2.6.6-5.el5_5.x86_64.rpm 17179af643eb8fd87d76c9f3ad1ac3d2 libpurple-tcl-2.6.6-5.el5_5.x86_64.rpm 3555fae71740507054e9ab61404072e9 pidgin-2.6.6-5.el5_5.i386.rpm 95fe6c56a2cfaabf3bb09523a6bb5043 pidgin-2.6.6-5.el5_5.x86_64.rpm c2c1208abd825352321a76cc9318db9f pidgin-devel-2.6.6-5.el5_5.i386.rpm ab0a47e361fb71f87fa5fe77c2867ed1 pidgin-devel-2.6.6-5.el5_5.x86_64.rpm e77902ff001a547f7ec6e2ddfda4add0 pidgin-perl-2.6.6-5.el5_5.x86_64.rpm Source: bf281d91c9b425b8696544eaa2158f69 pidgin-2.6.6-5.el5_5.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 3 Date: Fri, 22 Oct 2010 15:29:55 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010:0789 CentOS 5 x86_64 libbonobo Update To: centos-announce(a)centos.org Message-ID: <20101022152955.GA9779(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010:0789 Upstream details at : https://rhn.redhat.com/errata/RHBA-2010-0789.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) x86_64: abddf3035d2c1f07ddc7785d1181e44d libbonobo-2.16.0-1.1.el5_5.1.i386.rpm c592d7204f1c2b32cc8ca5a7753cf003 libbonobo-2.16.0-1.1.el5_5.1.x86_64.rpm cc4e8d70849a7827381590c797f97c89 libbonobo-devel-2.16.0-1.1.el5_5.1.i386.rpm 944748134f356dc0b9b144c644ac658e libbonobo-devel-2.16.0-1.1.el5_5.1.x86_64.rpm Source: ac33719f8498d8ba541c5b2915677ecc libbonobo-2.16.0-1.1.el5_5.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ Message: 4 Date: Fri, 22 Oct 2010 15:29:55 +0000 From: Karanbir Singh <kbsingh(a)centos.org> Subject: [CentOS-announce] CEBA-2010:0789 CentOS 5 i386 libbonobo Update To: centos-announce(a)centos.org Message-ID: <20101022152955.GA9765(a)chakra.karan.org> Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2010:0789 Upstream details at : https://rhn.redhat.com/errata/RHBA-2010-0789.html The following updated files have been uploaded and are currently syncing to the mirrors: ( md5sum Filename ) i386: 5b9db7961288394f28bbe1c50de5865d libbonobo-2.16.0-1.1.el5_5.1.i386.rpm d8938653ed3fd708d09e20441fdca7da libbonobo-devel-2.16.0-1.1.el5_5.1.i386.rpm Source: ac33719f8498d8ba541c5b2915677ecc libbonobo-2.16.0-1.1.el5_5.1.src.rpm -- Karanbir Singh CentOS Project { http://www.centos.org/ } irc: z00dax, #centos(a)irc.freenode.net ------------------------------ _______________________________________________ CentOS-announce mailing list CentOS-announce(a)centos.org http://lists.centos.org/mailman/listinfo/centos-announce End of CentOS-announce Digest, Vol 68, Issue 11 ***********************************************

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Re: [CentOS] black display during installation of CentOS5.5
by Ritika Garg 22 Oct '10

22 Oct '10

I havent't tried nofb. If I write "linux nofb" at boot:, then will the innstallation take place in text mode or graphical mode?

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Howto align partitions in Linux + NetApp
by Santi Saez 22 Oct '10

22 Oct '10

Hi, NetApp support has suggested us aligning partitions to improve performance, in short: starting sector must be divisible by 8. How can I move the start point in a misaligned partition -in production, with ext3- under Linux? A screenshot with a misaligned (start=63s) and aligned (start=64s) partition is available at: http://filesocial.com/lkwvvn2 (If anyone is interested in this topic, NetApp has a good document explaining performance issues in misaligned partitions: "Best Practices for File System Alignment in Virtual Environments", http://goo.gl/EkBw) I have tried using parted "resize + move" commands, but when moving start point a get this error: (parted) resize Partition number? 1 Start? [64s]? End? [419425019s]? 419425018 (parted) move Partition number? 1 Start? 65 End? [419425019s]? 419425019 Error: Can't move a partition onto itself. Try using resize, perhaps? Using fdisk 'b' command in expert mode ('move beginning of data in a partition') works, but it doesn't move the file system.. thanks!! Regards, -- Santi Saez http://woop.es

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Mount/automount fails with krb5-enabled nfs4
by Hans Persson 22 Oct '10

22 Oct '10

I have a problem that is driving me crazy. Our nfs server is running Solaris. Most clients mount directories from it with no problems, but not all. All clients that have problems run CentOS (5.4 and 5.5). I've found one or two of each version that fail, but also a couple of each version that work. The mounting is done for user home directories via autofs but that doesn't seem to make any difference, the same problem appears when trying to mount manually. Kerberos is used for authentication. When I try to mount a directory manually I get this: # mount -vvvv -t nfs4 -o sec=krb5 \ triangulum.ifm.liu.se:/export/users/hans /mnt mount: pinging: prog 100003 vers 4 prot tcp port 2049 mount.nfs4: Permission denied I get this in /var/log/messages: Oct 15 15:15:12 pc13287 rpc.gssd[2780]: rpcsec_gss: gss_init_sec_context: (major) Unspecified GSS failure. Minor code may provide more information - (minor) Unknown code krb5 60 Oct 15 15:15:12 pc13287 rpc.gssd[2780]: WARNING: Failed to create krb5 context for user with uid 0 with any credentials cache for server triangulum.ifm.liu.se The machines that can mount the disk differ slightly in what they log. Some log nothing, others this: Oct 19 13:26:01 pc14113 rpc.gssd[2793]: ERROR: GSS-API: error in gss_acquire_cred(): Unspecified GSS failure. Minor code may provide more information - Unknown code krb5 195 Oct 19 13:26:01 pc14113 rpc.gssd[2793]: WARNING: Failed to create krb5 context for user with uid 121 for server triangulum.ifm.liu.se Note that there is still an error logged in the first line, but a different one. In the second line, the uid if the user changes from 0 (I'm logged in as root when doing both tests) to 121 (which is the uid of the user owning the home directory I'm trying to mount in both cases). Perhaps this is a clue, but I don't know what it tries to tell me. I can't find any relevant differences in configuration. I've gone through files in /etc on a working and a non-working machine looking for changes but not finding anything relevant in /etc/sysconfig/nfs, /etc/hosts, /etc/idmapd.conf, /etc/krb5.conf, /etc/host.conf, /etc/nsswitch.conf, /etc/resolv.conf and others. SELinux is not running. This is what the keytab looks like on both working and non-working machines: # klist -k -e Keytab name: FILE:/etc/krb5.keytab KVNO Principal ---- -------------------------------------------------------------------------- 3 host/pc13287.ad.ifm.liu.se(a)IFM.LIU.SE (DES cbc mode with RSA-MD5) 3 nfs/pc13287.ad.ifm.liu.se(a)IFM.LIU.SE (DES cbc mode with RSA-MD5) I have an yp master and an yp slave, but there are both working and non-working clients connected to both of them. There is plenty of space in /tmp and it is writable by all. Among the total set of clients there are multiple versions of nfs-utils and kernel used, but I can pick a set of one working and one non-working client that have the same versions for both (nfs-utils-1.0.9-47.el5_5 and kernel-2.6.18-194.17.1.el5) so that doesn't appear to be the problem. I've tried yum reinstall for the nfs package to no effect. That doesn't work for the kernel package, but I've compared the md5 sums for the gss modules between a working and a non-working machine and found no differences. Obviously, I need to check something else, but what? Please help! Hans

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Re: [CentOS] Getting Wake on lan to work
by Steve Clark 22 Oct '10

22 Oct '10

On 10/20/2010 02:13 PM, centos(a)crighton.me.uk wrote: > On Wed, 20 Oct 2010 14:04:51 -0400, you wrote: > > > >> To get mine to work under fedora I had to run ethtool and turn on the >> wol option. >> Also it seemed to get reset after used wol to start it up so in my >> rc.local I put >> /sbin/ethtool -s eth1 wol g >> /sbin/ethtool -s eth0 wol g >> > ethtool -s eth0 wol g results in a message "Cannot get current > wake-on-lan settings: Operation not supported" even though both the > motherboard and NIC do support WOL. > > Hmm... [root@centostest ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000007 (7) Link detected: yes [root@centostest ~]# ethtool -s eth0 wol g [root@centostest ~]# uname -a Linux centostest 2.6.18-164.6.1.el5 #1 SMP Tue Nov 3 16:18:27 EST 2009 i686 athlon i386 GNU/Linux [root@centostest ~]# ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 32 Transceiver: internal Auto-negotiation: on Supports Wake-on: pumbg Wake-on: g Current message level: 0x00000007 (7) Link detected: yes [root@centostest ~]# -- Stephen Clark *NetWolves* Sr. Software Engineer III Phone: 813-579-3200 Fax: 813-882-0209 Email: steve.clark(a)netwolves.com http://www.netwolves.com

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Preserving LVM after after os reload
by Sherin George 22 Oct '10

22 Oct '10

Hi guys, I have two disks, one with OS and a second disk containing an LVM. I would like to OS reload the server without losing LVM. I heard that LVM is self sustaining. Is that true ? Should I backup something(using vgcfgbackup & vgexport ?) to get LVM running after os reload. Thanks in advance. -- Sherin

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how to do repetetive command in shell
by Roland RoLaNd 21 Oct '10

21 Oct '10

Dear all, i'm writing a certain script which does a specific task in a repetitive manner, i'm going to give a similar script with the same concept hope you could advise me to a better way: USER1="roland" USER2="dany" USER3="kevin" cp -r /opt/$USER1/test /backup/$USER1 cp -r /opt/$USER2/test /backup/$USER2 such a command would be repeated 832 times (this is just an example) so instead of copying the above line 832 times and appending that user's number in each "$USER" is there a way to do it in a smarter way ? thanks, --Rolad

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No "last command" in VIM?
by Dotan Cohen 21 Oct '10

21 Oct '10

Although I made sure that vim-enhanced.i386 is installed, pressing : then upArrow does not show me the last command that I've typed. Might I still be using vim-minimal erroneously? How to fix that? I don't see any mention of this in google or the past few months of fine archives. Thanks. [gadi@mercury ~]$ uname -a Linux mercury 2.6.18-194.3.1.el5PAE #1 SMP Thu May 13 13:48:44 EDT 2010 i686 i686 i386 GNU/Linux [gadi@mercury ~]$ yum info vim-enhanced.i386 Repo : installed -- Dotan Cohen http://gibberish.co.il http://what-is-what.com

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