Berni wrote:
Hi!
I have the following problem with my softraid (raid 1). I'm running
Ubuntu 7.10 64bit with kernel 2.6.22-14-generic.
After every reboot my first boot partition in md0 is not synchron. One
of the disks (the sdb1) is removed.
After a resynch every partition is synching. But after a reboot the
state is "removed".
The disks are new and both seagate 250gb with exactly the same partition table.
Did you create the raid arrays and then install on them? Or add them
after the fact? I have seen this type of problem when the initrd doesn't
start the array before pivotroot, usually because the raid capabilities
aren't in the boot image. In that case rerunning grub and mkinitrd may help.
I run raid on Redhat distributions, and some Slackware, so I can't speak
for Ubuntu from great experience, but that's what it sounds like. When
you boot, is the /boot mounted on a degraded array or on the raw partition?
Here some config files:
#cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5]
[raid4] [raid10]
md2 : active raid1 sda6[0] sdb6[1]
117185984 blocks [2/2] [UU]
md1 : active raid1 sda5[0] sdb5[1]
1951744 blocks [2/2] [UU]
md0 : active raid1 sda1[0]
19534912 blocks [2/1] [U_] <<<<<<<< this is the problem: looks
like U_ after reboot
unused devices: <none>
#fdisk /dev/sda
Device Boot Start End Blocks Id System
/dev/sda1 1 2432 19535008+ fd Linux raid
autodetect
/dev/sda2 2433 17264 119138040 5 Extended
/dev/sda3 * 17265 20451 25599577+ 7 HPFS/NTFS
/dev/sda4 20452 30400 79915342+ 7 HPFS/NTFS
/dev/sda5 2433 2675 1951866 fd Linux raid
autodetect
/dev/sda6 2676 17264 117186111 fd Linux raid
autodetect
#fdisk /dev/sdb
Device Boot Start End Blocks Id System
/dev/sdb1 1 2432 19535008+ fd Linux raid
autodetect
/dev/sdb2 2433 17264 119138040 5 Extended
/dev/sdb3 17265 30400 105514920 7 HPFS/NTFS
/dev/sdb5 2433 2675 1951866 fd Linux raid
autodetect
/dev/sdb6 2676 17264 117186111 fd Linux raid
autodetect
# mount
/dev/md0 on / type reiserfs (rw,notail)
proc on /proc type proc (rw,noexec,nosuid,nodev)
/sys on /sys type sysfs (rw,noexec,nosuid,nodev)
varrun on /var/run type tmpfs (rw,noexec,nosuid,nodev,mode=0755)
varlock on /var/lock type tmpfs (rw,noexec,nosuid,nodev,mode=1777)
udev on /dev type tmpfs (rw,mode=0755)
devshm on /dev/shm type tmpfs (rw)
devpts on /dev/pts type devpts (rw,gid=5,mode=620)
lrm on /lib/modules/2.6.22-14-generic/volatile type tmpfs (rw)
/dev/md2 on /home type reiserfs (rw)
securityfs on /sys/kernel/security type securityfs (rw)
Could anyone help me to solve this problem?
thanks
greets
Berni
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