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Scalix install on CentOS
by James Gagnon 02 Mar '06

02 Mar '06

Hey All, I read on the list here not to long ago a work around for the following error on CentOS for installing the scalix mail server... Error: unsupported OS release: CentOS release 4.2 (Final) on x86_64 Someone posted a fix where you could edit a file changing the name of the OS or something to fix this. Anyone remember which file it was I could edit and what I needed to edit it too in order to make this install work? Any info would be great... Thanks! James Gagnon jamesg(a)nucleus.com

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RE: [CentOS] Raid 1 problems
by Bowie Bailey 02 Mar '06

02 Mar '06

Mace Eliason wrote: > Hi, > > I have setup raid on a new server and have found that if I remove one > drive it will boot but if I remove the other it says missing OS. > > I am using two 18.2Gig SCSI drives, using software raid 1. > I have it setup with the following drives in this order. > > /boot > swap > / > > all are mirrored between the two drives. I remember a while back that > their was a problem with grub would that be the problem here? > Why does it work on one drive and not the other? I guess that answers Steve's question from that last email... :) The problem is that grub does not update the boot block on both drives. Dig through the list archives for instructions on fixing it. -- Bowie

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RE: [CentOS] Advice on setting up Raid and LVM
by Bowie Bailey 02 Mar '06

02 Mar '06

Steve Huff wrote: > On Mar 2, 2006, at 9:47 AM, Bowie Bailey wrote: > > > Or you could do this: > > > > RAID 1 partition: > > md0 = 80GB (or whatever the useable total is) > > > > Then include md0 in VolGroup00 and create your logical volumes. > > > > LV0 = 300MB (/boot) > > LV1 = 500MB (swap) > > LV2 = 9.2GB (/) > > LV3 = 70GB (/home) > > > > This way everything is mirrored and everything is in one VG. If you > > need more space, add another pair of mirrored drives and add the new > > mirrored device into VolGroup00. Then you can use the space to > > expand whichever filesystem needs it. I would also advise > > following the previous poster's advice and leaving a few GB unused > > so that you aren't forced to add more drives immediately when LV2 > > fills up faster than you expected. > > i was under the impression that GRUB doesn't know how to boot from a > logical volume, and so the configuration you describe won't work > without a bit of tweaking, like so: > > two SW RAID 1 sets: > md0: 100MB, format as ext3, /boot > md1: the remaining space, mark as LVM > > VolGroup00: > LV0 = 1GB swap > LV1 = 1GB /var > LV2 = 9.2GB / > LV3 = some more space for whatever you need That's a good point. I don't know if grub will boot from it or not. I haven't tried that on my Linux systems yet, but it is the way I do things with my other unix boxes. > also, does anyone know if RHEL4 has fixed the problem of GRUB only > being installed on the first drive of a SW RAID set? refer to this > doc for more discussion: > > http://lists.us.dell.com/pipermail/linux-poweredge/2003-July/008898.html I remember that thread, but I don't know if there was any resolution. -- Bowie

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test to correct hijacking
by rado 02 Mar '06

02 Mar '06

I am sorry for hijacking msgs. I didn't realize I was doing that for sure. I hope that this msg appears as a new msg and NOT any hijacked msg. please reply either way k so i can correct it. thx, John Rose

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DR Solutions
by Tom Brown 02 Mar '06

02 Mar '06

Hi Wondering if there are known tools out there for doing block level replication of linux systems? There is a product for windows called Double Take that seems quite good but doe not work with Linux. Anyone know? thanks

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IBM xSeries 206
by Mark Quitoriano 02 Mar '06

02 Mar '06

ok now i bought an IBM xSeries 206 but my problem is the hard drive can't be detected. I tried surfing for drivers for SATA and i found one for RHEL 3 can this driver works for CentOS 4.2? -- Regards, Mark Quitoriano, CCNA Fan the flame... http://www.spreadfirefox.com/?q=user/register&r=19441

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PHP + firebird
by Marcus Carvalho 02 Mar '06

02 Mar '06

Hi all, I have a centos 4.2 with apache. I need allow a php site access the firebird DB. How can I do this? -- ===================== Marcus Tulio T. Carvalho Telemacro Sistemas e Serviços =====================

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Load Average
by Sam Drinkard 02 Mar '06

02 Mar '06

Maybe somewhat of a vague question, but what would constitute a moderate and a heavy load as depicted by "top" on any particular machine? I am trying to justify running this machine with near 100% cpu utilization on both, with load averages between 5 and 5 according to top. I don't particularly see any significant slowdown in the running processes, but there is a chance the disk I/O might become an issue if too many things are going on at once. As for actual running processes, it varies between 5 and 9, depending on time of day. Memory is not really an issue, even tho usage tops out around 1.3 - 1.4Gb, and only a small usage =< 500k swap. X does seem to get pretty sluggish at those load levels, and I've thought about dumping back to a text console for most of the runtime, but I like my Xterms and monitoring applets. Sam

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Apache ModRewrite
by John Hinton 02 Mar '06

02 Mar '06

Does anybody happen to know if 'for sure' the order in which you list modrewrite rules is the order in which they are processed within a .htaccess file? It does work, but I want to know that it always works. Basically, I have some multiple wildcard rules, where directories can't be hard coded and as it goes deeper into the directories, the more shallow levels interfere with the deeper levels. Thanks, John Hinton

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Advice on setting up Raid and LVM
by Fajar Priyanto 02 Mar '06

02 Mar '06

Hi all, I'm setting up Centos4.2 on 2x80GB SATA drives. The partition scheme is like this: /boot = 300MB / = 9.2GB /home = 70GB swap = 500MB The RAID is RAID 1. md0 = 300MB = /boot md1 = 9.2GB = LVM md2 = 70GB = LVM md3 = 500MB = LVM Now, the confusing part is: 1. When creating VolGroup00, should I include all PV (md1, md2, md3)? Then create the LV. 2. When setting up RAID 1, should I make those separated partitions for /, /home, and swap? Or, should I just make one big RAID device? The future purpose of using LVM is I want to be able to expand any partitions that would run out of space into a new disk. Thank you very much. -- Fajar Priyanto | Reg'd Linux User #327841 | Linux tutorial http://linux2.arinet.org 18:35:53 up 4:55, 2.6.15-1.1830_FC4 GNU/Linux Let's use OpenOffice. http://www.openoffice.org

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