Hi! I've got an installed Debian system which I want to move to RAID-1.
I've installed raidtools2 and have a properly configured kernel running,
eg everything is statically compiled in, not as modules.
I was able to move all the partitions to the proper md-devices without
problems but for the root partition (I don't care for /boot ATM).
Currently, I have this:
/dev/sda3 on / type ext3 (rw,errors=remount-ro)
/dev/sda1 on /boot type ext3 (rw)
/dev/md5 on /usr type ext3 (rw)
/dev/md6 on /var type ext3 (rw)
/dev/md7 on /var/tmp type ext3 (rw)
/dev/md8 on /home type ext3 (rw)
I've created an md3 device consisting of
raiddev /dev/md3
raid-level 1
nr-raid-disks 2
persistent-superblock 1
chunk-size 8
device /dev/sdb3
raid-disk 0
device /dev/null
raid-disk 1
failed-disk 1
on which I've created an ext3 filesystem and copied over all of sda3
and edited etc/fstab on md3 to reflect that / resides on md3 now.
I can mount this without problems:
# mount /dev/md3 /mnt/tmp/
# mount | grep md3
/dev/md3 on /mnt/tmp type ext3 (rw)
However, when I boot with "Linux root=/dev/md3 ext3" it can't find a
valid ext3/ext2/reiserfs superblock on md(9,3). There's a couple lines
right before that that tell me that md is autodetecting RAID arrays
(can't copy/paste that for obvious reasons).
Any hints/pointers? The various howtos etc. aren't all that
helpful for this kind of problem.
cheers+TIA,
&rw
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/ Ing. Robert Waldner | Security Engineer | CoreTec IT-Security \
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