Re: [gentoo-user] OpenRC broke my LVM?

[Matt Harrison]

Alan McKinnon wrote:
> On Wednesday 23 April 2008, Matt Harrison wrote:
>
>> Alan McKinnon wrote:
>>
>>> It's highly unlikely you lost data, as the upgrade would not have
>>> changed the on-disk metadata. If all else fails, you could boot off
>>> an LVM-enabled LiveCD and you'll find all your volumes present. But
>>> first we need to find out what's going on (my machine uses
>>> baselayout-2 and openrc & my lvm volumes were unaffected.
>>>
>>> What output do you get from
>>> pvscan
>>> vgscan
>>> lvscan
>>> vgchange -a y
>>>
>>> and what's in the various logs regarding lvm startup?
>>>
>>>
>>>
>> Ok,
>>
>> pvscan says:
>>     No Matching physical volumes found
>>
>
> ouch. Looks like something is wrong with your lvm metadata. Could you
> confirm that your setup is lvm on top of local RAID, and that there
> isn't anything else involved (shared storage for example).
>
> As a test, I would boot off an LVM enabled live cd and see if the
> volumes are accessible. That will determine if the problem lies with
> lvm, your volumes, or with how your gentoo is set up.
>
> Last time I looked, the Sistina web site and redhat.com has loads of
> very useful info and FAQs. If you haven't already, I recommend you get
> onto those sites and start reading and doing non-destructive tests, as
> lvm errors can be varied and interesting when stuff goes wrong
>
>
I can confirm its 6 local drives using md software raid, with lvm stuck 
on top. No shared storage is happening at all.

I'll have a look at everything I can find. I just pray I haven't lost 
anything.....

I'm about to burn a live cd, and i'll see what it says about my 
partitions...fingers crossed
-- 
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