Re Help with ES v3 Raid

Marc Leveille marc.leveille at nrc-cnrc.gc.ca
Mon Jan 30 17:01:20 UTC 2006


I looked into this and cannot find raidtab config file. All I could find
when running whereis raidtab was /usr/share/man/man5/raidtab.5.gz

Do I need to install extra packages for this? I looked in the add/remove
packages but cannot find anything relevant unless it is under
Development tools or Kernel Development.

thanks

Marc

On Fri, 2006-01-27 at 14:15 -0700, Eric Sisler wrote:
> On Fri, 2006-01-27 at 13:47, Marc Leveille wrote:
> 
> > I followed your advice and was able to make a file system on /dev/mdo. I
> > enter this entry in fstab 
> > /dev/md0   /home/apps   ext3   defaults  1 2
> > 
> > I tried ext2 and ext3 and got the same error after re-booting.this
> > happens when Checking file system runs
> > " The superblock could not be read or does not describe a valid ext2
> > file system/. 
> > 
> > the odd thing is that as soon as I create the file system on /dev/md0, I
> > can mount it using mount -t ext3 /dev/md0 /home/apps. I can go in and
> > see the lost and found folder. it only fails after a re-boot. Also if I
> > remove the mdo entry in fstab, reboot and try mounting it manually, it
> > now fails (invalid file system)
> 
> Others have suggested the /etc/mdmadm.conf file, which may help. 
> However, if you are running a 2.4.x kernel you may have better luck with
> and /etc/raidtab config file.  Recent experiences here show that the
> 2.4.x kernel series has a startup script for /etc/raidtab but not
> /etc/mdmadm.conf.  The 2.4.x kernels use older commands that are part of
> the raidtools package.  Newer 2.6.x kernels use newer commands like
> mdadm.  Both can be used the manipulate software RAID arrays, but again
> I don't think 2.4.x kernels include a startup scripts for mdmadm and the
> associated configuration file.
> 
> -Eric
> 
> -- 
> 
> Eric Sisler <esisler at westminster.lib.co.us>
> Library Applications Specialist
> Westminster Public Library
> Westminster, CO USA
> 
> Linux - Don't fear the Penguin.
> Want to know what we use Linux for?
> Visit http://wallace.westminster.lib.co.us/linux
> 




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