Re: [OT?] LVM questions - I have seriously screwed my system

[Goswin von Brederlow <brederlo@informatik.uni-tuebingen.de>]

Craig Hagerman <craighagerman@gmail.com> writes:

> On 10/20/05, Matthias Julius <lists@julius-net.net> wrote:
>
>
>                LVM does not find sda2.  What does pvdisplay /dev/sda2
>      say?
>
>
> % pvdisplay /dev/sda2
>   No physical volume label read from /dev/sda2
>   Failed to read physical volume "/dev/sda2"
>  
>
>
>           I guess LVM only scans devices that have its type set to
>      LVM.  So it
>      might be enough to just do that for sda2.
>      
>
>
> Before, the partition type for /dev/sdb1 was ext3 (ie 82). Now it is LVM
> (8e). So you are saying that just by changing the partition type the data is
> not effected, right? If I now change it BACK to ext3, do you suppose
> everything will be mount-able?
> Right now sda2 is showing up as type "Linux". It was previously set to ext3 so
> this looks correct, but since I created the VG and LV, I can't mount it with
> mount -t ext3 .... or mount -t auto.

Mounting totaly ignores the partition type anyway. So that did
nothing. But running pvcreate will have overwritten some data.

Try mounting with an alternate superblock and mount read-only and save
whatever you can.

MfG
        Goswin