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Date: Fri, 02 May 2008 11:30:52 -0400
From: Gerry Reno <greno@verizon.net>
Subject: Re: [linux-lvm] F7 will not boot after running backup w/snapshot
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To: LVM general discussion and development <linux-lvm@redhat.com>

Stuart D. Gathman wrote:
> 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.
>   
Well, what good is this if you cannot fix anything? You are stuck in 
'broken' mode.

Regards,
Gerry

> 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.
>
>