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ekkek 03-27-2009 03:03 AM

Inconsistent metadata in lvm

I made a mistake yesterday, followed by a couple of other mistakes.

I'm running LVM2 on my Ubuntu installation, my lvol0 was almost full, so i added another 500GB hard drive to the computer, and decided to add it to my lvol0. Did this in the GUI for LVM (In ubuntu found in /usr/bin/system-config-lvm). The drive was not formatted yet. Then i ran the command "vgextend -L 950G /dev/vg0/lvol0". Then i ran the command "df -h" in shell, and saw that my partition was still the same size as earlier. Assumed this had to do with the fact that the drive was not formatted, so i tried formatting it, that was not possible due to the fact it was in use, although not mounted anywhere. So i tried removing it from the lvm in the gui mentioned earlier. Couldn't be done. Thought that had to be because vg0 was 950GB, so i resized it to 496 GB with the command "vgresize -L 496G /dev/vg0/lvol0". It gave me a warning that i could loose data when resizing down, but since i had not used more that about 470GB i thought i was safe. I was not safe at all. Now the lvm is down, with an errormessage saying the metadata is inconsistent. And when running commands like "pvdisplay", "vgdisplay" or just "pvs", i just get this message "File descriptor 5 left open" and nothing happends.

Is there a way to recreate the metadata?
Is there a way to recreate the data from the partitions to another harddrive?

Any help would be deeply appreciated (since i'm a man, and don't do backups :P)

mostlyharmless 03-27-2009 08:02 PM


since i'm a man, and don't do backup
I can't believe you wrote that. Sorry, I realize that's not helpful for your particular problem, but I'm hoping it's taken as helpful in a larger context.

Maybe this can help
or this

ekkek 03-27-2009 09:03 PM

It's just a saying that real men cries a lot, but never makes backups.

The second link contained information that really worked for me, just did the vgcfgrestore -f thingy.

Thanks a lot mostlyharmless :D

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