mdadm 0.9 metadata at the end of the disk confuses grub
Bug #999076 reported by
Fabian Zeindl
This bug affects 8 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
grub |
Unknown
|
Unknown
|
|||
grub2 (Ubuntu) |
Invalid
|
High
|
Unassigned |
Bug Description
When using mdadm metadata format 0.9 and the partition is at the end of the disk, grub can not tell whether it is the partition or the whole disk that is the raid component, resulting in errors like:
error: found two disks with the index 0 for RAID md0.
error: found two disks with the index 3 for RAID md0.
error: superfluous RAID member (4 found).
error: superfluous RAID member (4 found).
error: superfluous RAID member (4 found).
This can cause unexpected failure after upgrading from 10.04.
summary: |
- Upgrade vom 10.04 LTS Server to 12.04 LTS Server breaks grub + mdadm 0.9 metadata at the end of the disk confuses grub |
Changed in grub2 (Ubuntu): | |
status: | Incomplete → Triaged |
importance: | Undecided → High |
description: | updated |
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Can you please post the output of "sudo mdadm -D /dev/md?" and "sudo fdisk -lu"?