[parted-devel] LVM partition "fixed" with GPT parition table.

[Phillip Susi]

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On 1/11/2012 12:33 PM, Paul Robinson wrote:
> Firstly, apologies if this is not an appropriate forum for what is 
> effectively a support request but my Goolging so far today has
> turned up neither an answer to my question or a more appropriate
> forum for the question.

This is a question of LVM recovery, so should be asked at
linux-lvm at redhat.com.

> The first (non-null) bytes of the partition prior to the changes 
> looked like:
> 
> 0000200: 4c41 4245 4c4f 4e45 0100 0000 0000 0000  LABELONE........
>  0000210: 46f3 997f 2000 0000 4c56 4d32 2030 3031  F... ...LVM2 001
>  0000220: 655a 5871 7631 4b30 7772 624b 4853 6835  eZXqv1K0wrbKHSh5
>  0000230: 7a65 4b58 4255 7831 5932 5657 5741 474b
> zeKXBUx1Y2VWWAGK
> 
> After the changes:
> 
> 00001f0: 0000 0000 0000 0000 0000 0000 0000 55aa  ..............U.
>  0000200: 4546 4920 5041 5254 0000 0100 5c00 0000  EFI PART....\...
>  0000210: 3903 a378 0000 0000 0100 0000 0000 0000  9..x............
>  0000220: ffff 7f32 0200 0000 2200 0000 0000 0000  ...2....".......
>  0000230: deff 7f32 0200 0000 6ad0 e561 2eb9 1c43  ...2....j..a...C
>  0000240: a47d 0862 12fc eb38 0200 0000 0000 0000  .}.b...8........
>  0000250: 8000 0000 8000 0000 8a4b 3819 0000 0000  .........K8.....
>  Followed later by: 0008000: 4c41 4245 4c4f 4e45 0100 0000 0000
> 0000 LABELONE........ 0008010: 3d79 02cd 2000 0000 4c56 4d32 2030
> 3031 =y.. ...LVM2 001 0008020: 6164 5952 3977 4f34 484b 3831 6850
> 4f58 adYR9wO4HK81hPOX 0008030: 6e72 5949 4c74 664c 564a 3231 3164
> 676b nrYILtfLVJ211dgk

Looks like not only did they add a GPT, but then ran a pvcreate on the
first partition, laying down a whole new PV label.

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