Degraded software RAID boot problems
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
mdadm (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
NB. This replaces bug report #1466803 which is inaccurate.
The Setup:
VirtualBox 2 x 8GB disks
Software RAID 1 or 10:
md0 = 1GB /boot bootable
md1 = 7GB LVM (1GB swap, 6GB root) - encrypted for (1) below so the initial setup looks like...
for test 1: Software RAID > encrypted volume > LVM
for test 2: Software RAID > LVM
The issues (tested on VirtualBox with and on 14.04.2):
1. Boot of encrypted LVM RAID system hangs when disk is removed.
Last boot messages are:
Reading all physical volumes. This may take a while...
No volume groups found
No volume groups found
Begin: waiting for encrypted source device... ...
2. Boot of UNencrypted LVM RAID system hangs when disk is removed and replaced.
Last boot messages are repeated:
Incrementally starting RAID arrays...
mdadm: CREATE user root not found
mdadm: CREATE group disk not found
Incrementally started RAID arrays.
description: | updated |
description: | updated |
For a workaround please see http:// forums. linuxvoice. com/viewtopic. php?f=4& t=531#p2403