Public bug reported:
Binary package hint: grub2
I've installed Ubuntu Server 10.04 on a RAID1 device (md0) built upon 2
50G partitions on 2 1TB Samsung disks. Installation went flawlessly, I
was able to boot the machine with no problems. To test, if the server
will survive a drive failure, I removed the second disk. The system
still booted OK, with array in degraded mode. After that, I reconnected
second drive, boot into Ubuntu and let the drives resync.
Then I removed the first drive and tried to boot with only second drive
attached. This ended up in an endless reboot loop -- after the BIOS
finishes its duties, the PC immediately reboots as soon as it tries to
load grub. Reconnecting the first drive fixes the problem.
This is a second time I encounter this bug, first time I stumbled upon
it after a first drive failure on a busy server -- I also couldn't boot
from the second drive, but I assumed, that both drives were dead and
restored the server from backups.
'lsb_release -rd'
Description: Ubuntu 10.04 LTS
Release: 10.04
Grub is installed on both drives.
What i expected: I will be able to boot from the second drive
What happened instead: I was unable to boot from the second drive
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
** Tags: boot grub2 mirror problem raid1
** Tags added: grub2
** Tags added: boot mirror problem raid1
--
grub2 installed on raid1 can not boot from second disk when first disk is
removed
https://bugs.launchpad.net/bugs/594202
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