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34753 discussions

adjusting transmit (tx) and receive thresholds
by James Marcinek 22 Jan '07

22 Jan '07

Hello all, I get warning displays on my system display that refer to threshold increases. Can someone recommend making adjustments for network cards based off of practical experience? Thanks, James

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trying to remove cyrus-sasl
by Gordon McLellan 22 Jan '07

22 Jan '07

I'm trying to remove the packages for cyrus-sasl using yum, but for some reason, yum wants to uninstall everything related to e-mail, as well as X-Windows, Gnome, etc etc. yum remove cyrus-sasl Transaction Summary ============================================================================= Install 0 Package(s) Update 0 Package(s) Remove 81 Package(s) Total download size: 0 Is this ok [y/N]: n Exiting on user Command How can I just remove cyrus, without uninstalling my entire desktop? Thanks, Gordon

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xeon quad core?
by Gordon McLellan 22 Jan '07

22 Jan '07

Can anyone share their experience with installing RHEL / Centos (latest production release) on the Dell 2950 (or 2900) with the quad-core e5310 processor? Does anyone know what chipset Dell is using on this box? I've got one on the way, and I'm hoping to use centos as the 'host' OS for several virtual machines (some of them Windows pigs), running vmware server. some of the specifics in case they are relevant: Single Xeon Quad Core E5310 processor, 1066mHz fsb 16 gigabytes DDR2 667mHz ram Dell Perc 5/i raid controller, configured for raid 1 Dual 146gb SAS drives Intel Pro/1000PT dual port PCIe nic Any and all input is appreciated! Gordon

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Re: VDQ Grub
by Andy 22 Jan '07

22 Jan '07

> Date: Sat, 20 Jan 2007 20:16:28 +0000 (UTC) > From: Beartooth <Beartooth(a)swva.net> > Subject: [CentOS] VDQ Grub > Very Dumb Question : I have tried about four times now, using an old > pentium2 with two hard drives (20 GB and 30 GB) to install both CentOS 4.4 > and Fedora Core 6 in such a way as to enable dual-boot between them. > > I've tried it by installing 4.4 first, and then FC6. I've tried it by > installing FC6 first, and then 4.4. I've tried it with and without giving > the installer permission to use both drives. > > I always end up with ability to boot only to one OS, usually the one > installed last. Between tries I wipe both drives with DBAN. > > Surely there must be something I'm doing wrong, obvious to many but not to > me. Clue, please? The way it works for me is: 1) Install distro 1 on the first drive, and let it put its GRUB into the MBR of the drive. Mostly that is what installers want to do by default 2) Install distro 2 on the second drive but make it put its GRUB in the root partition of the second drive. Looking at the RHEL installation guide, this will be done via the "Configure advanced boot loader" option in the Bootloader Configuration phase 3) Once the installation of distro 2 is complete, boot into distro 1 and modify /boot/grub/menu.lst to include: title Distro 2 rootnoverify (hd1,0) chainloader +1 If there is any chance that you will want distro 2 to be the default at some stage, put this before distro 1, which will look like: title Fedora Core (2.6.14-1.1656_FC4) root (hd0,0) kernel /vmlinuz-2.6.14-1.1656_FC4 ro root=/dev/VolGroup00/LogVol00 rhgb quiet initrd /initrd-2.6.14-1.1656_FC4.img and modify the default= 0 to 1 Then if you later want distro 2 to be default you can change it back to 0 again. Doing it this way round avoids confusion if distro 1 gets a kernel upgrade and a new title line is added. I can recommend the following for GRUB wisdom: * http://www.linuxquestions.org/linux/blog/saikee * A grub menu booting 100+ systems of Dos, Windows, Linux, BSD and Solaris: http://www.justlinux.com/forum/showthread.php?t=143973 * Just booting tips: http://www.justlinux.com/forum/showthread.php?t=144294 * Saikee's grub booting tips: http://www.justlinux.com/forum/showthread.php?p=837905#post837905 Andy Goss

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Porting to RISC
by Daniel Rindt 22 Jan '07

22 Jan '07

Hello Everyone, for a small embedded System i would like to install CentOS, but it is a RISC System. So my Question is it possible to rebuild some SRPMs for RISC? Thanks in Advance Daniel

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wireless card for CentOS
by Aleksandar Milivojevic 21 Jan '07

21 Jan '07

Hi, I'll need to buy a new wireless card. I need a recommendation for PCMCIA wireless card that simply works with CentOS out of the box. By "works out of the box", I mean that it doesn't need ndis wrapper (or whatever it is called), kernel hacks, or whatever. Thanks

7 15

libmysqlclient not found, while compiling PowerDNS
by Devraj Mukherjee 21 Jan '07

21 Jan '07

Hi Everyone, I am trying to build the PowerDNS rpm from the source rpms powerdns-2.9.20-3.MIND.src.rpm, it requires opendbx-devel which I am trying to build from the instructions at (http://www.linuxnetworks.de/opendbx/download/index.html) I have subscribe to centosplus for packages like mysql5 and php5. I have the following MySQL packages installed [root@charlie ~]# rpm -qa | grep mysql mysql-server-5.0.22-1.centos.1 mysql-5.0.22-1.centos.1 mysqlclient10-3.23.58-9.2.c4 php-mysql-5.1.6-1.2.1.centos mysqlclient14-devel-4.1.14-4.2.c4.1 mysqlclient10-devel-3.23.58-9.2.c4 mysqlclient14-4.1.14-4.2.c4.1 postfix-2.2.10-1.RHEL4.2.mysql_pgsql.c4 mysql-devel-5.0.22-1.centos.1 I am unable to compile opendbx, if I issue the command rpmbuild -ta opendbx-1.0.3.tar.gz it fails with the following mesasges checking for mysql_init in -lmysqlclient_r... no checking for mysql_init in -lmysqlclient... no configure: error: mysql library (libmysqlclient) not found error: Bad exit status from /var/tmp/rpm-tmp.40942 (%build) Any ideas why my mysql client libraries can't be found by the various build processes? Thanks. -- "I never look back darling, it distracts from the now", Edna Mode (The Incredibles)

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Limiting files when using rsync
by Todd Cary 21 Jan '07

21 Jan '07

I use the following command to sync the home directory on the two computers, however I would like not to send the "dot" files e.g. ".ssh". Can that be done, and if so, how would I construct the command line? /usr/bin/rsync -av -e ssh /home/ 192.168.0.22:/home/ Many thanks.... Todd -- Ariste Software 2200 D Street Ext Petaluma, CA 94952 (707) 773-4523

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cyrus-sasl errors: SQL engine 'mysql' not supported
by dennis 21 Jan '07

21 Jan '07

Hi, I was wondering if I could get a little help with troubleshooting/configuring the cyrus-sasl package for Centos 4.4 to build properly with mysql support,for my mail server ' not supported myhost postfix/smtpd[3641]: SQL engine 'mysqlJan 21 10:55:27 myhost postfix/smtpd[3641]: auxpropfunc error no mechanism available when I put the following in /usr/lib/sasl2/smtpd.conf pwcheck_method: auxprop auxprop_plugin: sql sql_engine: mysql sql_hostnames: localhost sql_user: vmail sql_passwd: password sql_database: postfix sql_select: select clear from postfix_users where email='%u@%r' smtpaccess='Y' Hope you can help me,thank you very much. Sincerly' dennis

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Cluster with two i386 pcs!
by israel.garcia＠cimex.com.cu 20 Jan '07

20 Jan '07

I want to make a cluster with two simple (INTEL SATA) pcs using CentOS, my question is? Is there something easiest than Linux RedHat Cluster Manager to make a cluster using CentOS with just two pcs? Regards, Israel

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