Ubuntu 10.04 RAID/grub blues continue:
I returned back to my server and decided to upgrade to the new kernel,
from ...-23 to ...-24, now:
r...@thor:~# uname -a
Linux thor 2.6.32-24-generic #39-Ubuntu SMP Wed Jul 28 05:14:15 UTC 2010 x86_64
GNU/Linux
The opposite scenario (see the description above) happened:
my system now boots from /dev/sdd (not from /dev/sda as previously in
...-23)
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Ubuntu, with Linux 2.6.32-24-generic' --class ubuntu --class
gnu-linux --class gnu --class os {
recordfail
insmod ext2
set root='(hd3,2)'
search --no-floppy --fs-uuid --set e29745e3-11df-4986-87a0-c018462ec99d
linux /boot/vmlinuz-2.6.32-24-generic
root=UUID=e29745e3-11df-4986-87a0-c018462ec99d ro quiet splash
initrd /boot/initrd.img-2.6.32-24-generic
r...@thor:~# df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sdd2 31720384 8341092 21767980 28% /
none 8228800 388 8228412 1% /dev
none 8233444 820 8232624 1% /dev/shm
none 8233444 344 8233100 1% /var/run
none 8233444 0 8233444 0% /var/lock
none 8233444 0 8233444 0% /lib/init/rw
/dev/sdd1 31215552 11340452 18263836 39% /CentOS_5.5
/dev/sdd4 57743556 10632936 44130064 20% /home
/dev/sdb1, /dev/sdc1, /dev/sdd1, which were (see above) in ...-23 my
raid devices are not any more:
r...@thor:~# !520
mdadm --misc --examine /dev/sda1
mdadm: No md superblock detected on /dev/sda1.
r...@thor:~# mdadm --misc --examine /dev/sdb1
mdadm: No md superblock detected on /dev/sdb1.
r...@thor:~# mdadm --misc --examine /dev/sdc1
mdadm: No md superblock detected on /dev/sdc1.
r...@thor:~# mdadm --misc --examine /dev/sdd1
mdadm: No md superblock detected on /dev/sdd1.
r...@thor:~# mdadm --misc --examine /dev/sdc
mdadm: No md superblock detected on /dev/sdc.
Like I said, in 10.04 RAID arrays survive from one kernel update to the other,
which seems a severe problem.
Could please anyone knowledgeable triage this bug to a proper place so
as an appropriate action can be taken? Thanks!
--
GRUB writes to wrong MBR and destroys RAID setup
https://bugs.launchpad.net/bugs/601305
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