[linux-lvm] vgremove fails to remove empty VG (v2.02.98)

[Joschi Brauchle]

Thanks for the detailed instructions, here are (some of) the missing 
gaps :-)

>> I get the following error with lvm2.02.98:
>> -----------
>> #/sbin/vgdisplay --units k -v 'system'
>>
>> --- Volume group ---
>> VG Name system
>> System ID
>> Format lvm2
>> Metadata Areas 1
>> Metadata Sequence No 13
>> VG Access read/write
>> VG Status resizable
>> MAX LV 0
>> Cur LV 0
>> Open LV 0
>> Max PV 0
>> Cur PV 1
>> Act PV 1
>> VG Size 104669184.00 KiB
>> PE Size 4096.00 KiB
>> Total PE 25554
>> Alloc PE / Size 0 / 0 KiB
>> Free PE / Size 25554 / 104669184.00 KiB
>> VG UUID Qs0uaZ-L88n-tC7T-fZQj-sgJY-2yRX-Dlt2Cr
>>
>> --- Physical volumes ---
>> PV Name /dev/sda3
>> PV UUID wzGjXi-F2lT-d2d4-l5a6-EmfM-W838-YxaFIh
>> PV Status allocatable
>> Total PE / Free PE 25554 / 25554
>> -----------
>>
>> VG system is empty, but still:
>> -----------
>> # /sbin/vgremove 'system'
>> -----------
>> failes with status code 5, which means 'can't remove volume group
>> containing logical volumes' (from man page).
>>
> 0. Which distro?
openSUSE 12.3 Beta 1 - Problem happens during installation, where an 
existing VGroup shall be removed.
>
> 1. lvmdump -ma
attached (hope that's ok)

> 2. vgremove -vvvv &> vgremove-dirty.out
http://pastebin.com/cmek1bYi

> 3. ps aux | grep lvmetad
Not running, no processes found. Skipping the remaining steps...
>
> 3.1 if so, the issue is likely to go away after restarting it. If you
> `gcore` or `kill -SEGV` it to get a core dump it may help us.
> 3.2 do another lvmdump here, to get "updated" data after lvmdump restart
> 3.3 retry 'vgremove -vvvv &> vgremove-reloaded.out'
> 4. pastebin the vgremove-dirty.out and we will be able to tell more then.
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