Bug#597563: grub-common: grub-probe segfaults scanning lvm devices

Vladimir 'φ-coder/phcoder' Serbinenko phcoder at gmail.com
Sat Jan 8 23:55:11 UTC 2011

On 01/09/2011 12:38 AM, Matthew Gabeler-Lee wrote:
> On 1/8/2011 18:34, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
>> Sorry, I've noticed that I've looked into the wrong place all the long.
>> md2 is fine. I suppose it's a problem with md0 (all mdraid are assembled
>> at the beginning). Since md0 is raid1, its misassembly wouldn't have any
>> influence (we don't write to devices). mdstat lists both md0 and md1 as
>> having no duplicate indices. I would need info on md0 for this (now
>> minor) remaining bug.
I have a hypothesis. Does last partition on any device span, s.t. it
leaves less than 64K after it until the end of device? If so then GRUB
sees the same metadata sector as the one at the end of device and as at
the end of partition. With 1.x metadata sector contains its own location
on the device. With 0.90 I can see no such field. Is there a way to
check for such condition with 0.90?

Vladimir 'φ-coder/phcoder' Serbinenko

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