Re: [linux-lvm] Can't mount after crash

[Daniel Roth <daniel@danielroth.se>]

Hi all,

Not anyone out there having a clue on what to do? It seems that about 
the same thing has happened to the submitter of 
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=142737 "Fedora Core 
3 system with lvm2 won't boot". Is this acceptable? Because of its 
impact., this is the kind of bug my company would consider a 
"show-stopper", and relabel the project "beta" again.

So if there is no way to fix the error, is there any way to recover any 
of my ~300GB of data? Fourtunately I have backuped all the crucial 
stuff, but there are a lot of things I would want to recover.

Best regards,

Daniel


> Hi!
>
>>
>> roth:/dev# pvscan
>> ....
>>  PV /dev/hdi1   VG my_volume_group   lvm2 [149.05 GB / 0    free]
>>  PV /dev/hde1   VG my_volume_group   lvm2 [76.69 GB / 0    free]
>>  PV /dev/hdg5   VG my_volume_group   lvm2 [57.25 GB / 964.00 MB free]
>>  Total: 3 [282.99 GB] / in use: 3 [282.99 GB] / in no VG: 0 [0   ]
>>
>> roth:/dev# vgscan
>>  Found volume group "my_volume_group" using metadata type lvm2
>
>
>
> With pvscan --partial -vvv I found some extra info.
>
>        /dev/mapper/my_volume_group-mylv: Added to device cache
>        /dev/my_volume_group/mylv: Aliased to 
> /dev/mapper/my_volume_group-mylv in device cache (preferred name)
>        /dev/my_volume_group/mylv: Skipping: Unrecognised LVM device 
> type 254 <---
> ...
>    Finding volume group "my_volume_group"
>        Opened /dev/hde1
>        Opened /dev/hdi1
>      /dev/hdi1: lvm2 label detected
>      /dev/hde1: lvm2 label detected
>        Opened /dev/hdg5
>      /dev/hdg5: lvm2 label detected
>        Read my_volume_group metadata (5) from /dev/hde1 at 4096 size 1341
>      /dev/hdi1: lvm2 label detected
>      /dev/hde1: lvm2 label detected
>      /dev/hdg5: lvm2 label detected
>        Read my_volume_group metadata (5) from /dev/hdi1 at 4096 size 1341
>      /dev/hdi1: lvm2 label detected
>      /dev/hde1: lvm2 label detected
>      /dev/hdg5: lvm2 label detected
>        Read my_volume_group metadata (5) from /dev/hdg5 at 4096 size 1341
>  Found volume group "my_volume_group" using metadata type lvm2
>
>
> Is this perhaps why I cant mount it? How can I restore?
> I still am a bit confused with Metadata file saying:
>               pv0 {
>                       id = "3Pv4bt-9E47-aDii-mJbB-6OYc-pCFS-7dOBv9"
>                       device = "/dev/hdi"     # Hint only
>               }
>
> when I pv(re)created hdi1
>
> Regards,
> Daniel