[Bug 1093918] Re: grub-probe auto-detection fails on raid

[Ing. Josef Klotzner]

tested - OK !

*when will it be available?*

there are only - as already mentioned some error messages a little "ugly" -
but it works


2014/1/9 Josef Hope <josef.klotzner at gmail.com>

> Ok i will test in next days
> Am 09.01.2014 17:53 schrieb "Phillip Susi" <psusi at ubuntu.com>:
>
> The backport to precise is still waiting for someone to test and verify
>> it, see comment #56.
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/1093918
>>
>> Title:
>>   grub-probe auto-detection fails on raid
>>
>> Status in “multipath-tools” package in Ubuntu:
>>   Fix Released
>> Status in “multipath-tools” source package in Precise:
>>   Fix Committed
>>
>> Bug description:
>>   kpartx was mapping the entire extended partition then stacking the
>>   logical partitions on that device.  This exposes a device that
>>   otherwise appears to be an entire disk device containing the logical
>>   partitions, and this confuses grub.  The extended partition is
>>   supposed to only expose the first two sectors to allow LILO to be
>>   installed.
>>
>>   The patch has been applied upstream now, and since this is the only
>>   change since quantal, a simple copy to quantal-updates should resolve
>>   it there as well.  I have done this in my ppa and the reporter has
>>   verified it has fixed the issue.
>>
>>   TEST CASE:
>>
>>   Use fdisk to create an extended parition either on a fakeraid disk or
>>   an LVM logical volume.  Run kpartx -a /dev/mapper/whatever to activate
>>   the partitions on the disk.  Assuming the extended partition is number
>>   3, then sudo blockdev --getsz /dev/mapper/whatever3 will report the
>>   apparent size of the extended partition.  The size should only be 2
>>   sectors regardless of the size of the extended partition.
>>
>> To manage notifications about this bug go to:
>>
>> https://bugs.launchpad.net/ubuntu/+source/multipath-tools/+bug/1093918/+subscriptions
>>
>


-- 
Ing. Josef Klotzner

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https://bugs.launchpad.net/bugs/1093918

Title:
  grub-probe auto-detection fails on raid

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