Re: Help Root Raid

David Martínez Moreno
2004-08-19T09:31:40Z

El Jueves, 19 de Agosto de 2004 11:09, Pankaj Agarwal escribió:
> Hi,
>
> I need your help regarding root raid. I have a root raid implemented server
> and it not booting anymore. I tried to use that harddisc as secondary hard
> disk to on of my other linux installation..so i can take a backup of files.
> The other installation has raid precompiled....as in booting process it
> checks for raid arays and at shutdown it gives messages regarding md
> devices. however it doesn't show any dev in lsdev or /proc/mdstat. My
> problem is when i try to mount it using "mount -t ext2 /dev/md0 /mnt/hdc1"
> it gives me error as "wronf fs, bad option, bad superblock on
> /dev/md0.........................(aren't you trying to mount a block device
> on a logical device)". Kindly show me the way to mount the filesystem.

Hello, Pankaj.

Probably you are not starting your RAID. You can check it with
cat /proc/mdstat. If not, well, you can mark the partitions forming the RAID
with persistent superblock (fd partition type in fdisk)) for starting
automatically the RAID on boot, or fill in the /etc/raidtab file with the
values of your current RAID and start it manually (see raidtools2 package).

Also you can read RAID-HOWTO for unvaluable information.

Regards,

Ender.
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