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

[Gerry Reno <greno verizon net>]

Alasdair G Kergon wrote:
> On Thu, May 01, 2008 at 04:21:00PM -0400, Gerry Reno wrote:
>   
> > At least in the case where the snapshot is read-only (LVM1 default, LVM2 
> > by config?), if the snapshot is lost, invalid, not removed from VG prior 
> > to reboot, when LVM comes back up it should see this and immediately 
> > know that it can just vgreduce VG --removemissing for the old snapshot.  
> > In the case of rw (no LVM1, LVM2 default), it should be a user choice 
> > and LVM should prompt the user at boot as to whether to remove this old 
> > snapshot so it can attempt to activate the VG.  Unless the user knows 
> > that there were non-backup related lvm mods written during the snapshot 
> > (eg: pvmove) then the user will just answer yes and the system should 
> > boot.  This is how LVM should operate in this scenario.
> >     
>  
> If you want your system to do that, update your initrd/initscripts
> accordingly to run the appropriate lvm2 commands to do that!
>
> Alasdair
>   

I can certainly do that. But I think this applies in the general case 
and should be included as standard behavior in LVM. This is a much more 
robust means of dealing with this scenario that having LVM just refuse 
to mount the volume when the only issue is a bad snapshot.


Gerry