[linux-lvm] F7 will not boot after running backup w/snapshot

Stuart D. Gathman stuart at bmsi.com
Fri May 2 15:17:05 UTC 2008

On Fri, 2 May 2008, Bryn M. Reeves wrote:

> Am I missing something here? vgchange --partial seems like it will do
> what you want (man 8 lvm):

It does part of what I want.  It would at least allow a system to boot
from a partial VG containing the root fs.  It does not allow any
metadata changes while VG is partial - not even reducing missing PV.
If a PV is temporarily missing, and you using the pvcreate -u option,
then the original PV comes back as well, you have fireworks.
Also, it doesn't ensure partially missing LVs are readonly (including
where a snapshot is on a missing PV).

In any case, the --partial might be good for initrd.  Although a newbie
admin would be terribly confused by the "no metadatachanges" restriction.

	      Stuart D. Gathman <stuart at bmsi.com>
    Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
"Confutatis maledictis, flammis acribus addictis" - background song for
a Microsoft sponsored "Where do you want to go from here?" commercial.

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