F10: something broken with lvm
Gerry Reno
greno at verizon.net
Wed Apr 22 23:26:33 UTC 2009
Gerry Reno wrote:
> Jonathan Underwood wrote:
>> 2009/4/22 Gerry Reno <greno at verizon.net>:
>>
>>> Gerry Reno wrote:
>>>
>>>> We just upgraded a number of machines to F10 and after a few weeks
>>>> I've
>>>> noticed something wrong with lvm. Some of our inhouse scripts are
>>>> breaking
>>>> that deal with lvm. When I look at /etc/fstab and mount I see
>>>> entries what
>>>> used to look like:
>>>> /dev/VolGroup00/LogVol01 / ext3
>>>> defaults 1
>>>> 1
>>>> getting changed to this:
>>>> /dev/dm-3 / ext3 defaults 1 1
>>>>
>>>>
>>>>
>>>> Where does this '/dev/dm-3' device come from? I don't find it
>>>> referenced
>>>> in any of the lvm tool outputs. Whatever caused this change to happen
>>>> please revert this back to just listing lv's in normal lvm parlance
>>>> please.
>>>> These mysterious changes are breaking things and are a complete
>>>> nuisance.
>>>> How do we go about undoing these changes and how do we prevent
>>>> this from
>>>> happening again?
>>>>
>>>>
>>>> Regards,
>>>> Gerry
>>>>
>>>>
>>> No one responded to this inquiry and these mysterious changes
>>> continue to
>>> happen. How can we prevent this from happening?
>>>
>>
>> Not sure what would cause that. Perhaps related to this bug:
>>
>> https://bugzilla.redhat.com/show_bug.cgi?id=475773
>>
>> Can you look back through /var/log/yum.log to work out which set of
>> package updates may have triggered the problem - that might provide a
>> clue.
>>
>>
> Yes, that bug shows something similar but affecting mkinitrd. These
> machines were upgraded from F9 and then began having these mysterious
> changes occur with these /dev/dm-N entries. These devices bear no
> resemblence to any mdraid devices or LVM devices and our scripts
> completely croak with these devices. Why are perfectly good devices
> being renamed to absolutely useless names? All I want to know is how
> to stop whatever it is that is causing this.
>
> Regards,
> Gerry
>
Filed bug: https://bugzilla.redhat.com/show_bug.cgi?id=497246
Regards,
Gerry
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