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Matt Harrison wrote: |
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> Alan McKinnon wrote: |
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>> On Wednesday 23 April 2008, Matt Harrison wrote: |
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>> |
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>>> Alan McKinnon wrote: |
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>>> |
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>>>> It's highly unlikely you lost data, as the upgrade would not have |
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>>>> changed the on-disk metadata. If all else fails, you could boot off |
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>>>> an LVM-enabled LiveCD and you'll find all your volumes present. But |
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>>>> first we need to find out what's going on (my machine uses |
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>>>> baselayout-2 and openrc & my lvm volumes were unaffected. |
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>>>> |
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>>>> What output do you get from |
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>>>> pvscan |
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>>>> vgscan |
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>>>> lvscan |
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>>>> vgchange -a y |
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>>>> |
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>>>> and what's in the various logs regarding lvm startup? |
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>>>> |
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>>>> |
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>>>> |
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>>> Ok, |
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>>> |
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>>> pvscan says: |
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>>> No Matching physical volumes found |
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>>> |
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>> |
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>> ouch. Looks like something is wrong with your lvm metadata. Could you |
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>> confirm that your setup is lvm on top of local RAID, and that there |
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>> isn't anything else involved (shared storage for example). |
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>> |
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>> As a test, I would boot off an LVM enabled live cd and see if the |
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>> volumes are accessible. That will determine if the problem lies with |
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>> lvm, your volumes, or with how your gentoo is set up. |
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>> |
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>> Last time I looked, the Sistina web site and redhat.com has loads of |
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>> very useful info and FAQs. If you haven't already, I recommend you get |
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>> onto those sites and start reading and doing non-destructive tests, as |
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>> lvm errors can be varied and interesting when stuff goes wrong |
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>> |
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>> |
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> I can confirm its 6 local drives using md software raid, with lvm stuck |
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> on top. No shared storage is happening at all. |
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> |
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> I'll have a look at everything I can find. I just pray I haven't lost |
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> anything..... |
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> |
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> I'm about to burn a live cd, and i'll see what it says about my |
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> partitions...fingers crossed |
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|
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Ok, some success. I've booted up with the install livecd, and I can |
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still access the metadata for my LVM partitions. Everything shows up |
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fine, the sizes and usage check out and things seem ok. |
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So it appears I've not lost my data, just the ability to access it with |
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the on-disk install I have. |
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Now I guess I've gotta either fix it, or re-install and then watch all |
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my emerge's really closely to figure out what happened to get into this |
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state. |
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Again, all help very much welcomed and thanks for the support so far :) |
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With a big sigh of relief, |
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|
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Matt Harrison |
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-- |
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