e2fsck: Bad magic number in super-block

[Gordon Charrick]

M. Lewis wrote:
> Tarhon-Onu Victor wrote:
>> On Tue, 31 Oct 2006, M. Lewis wrote:
>>
>>>   Device Boot      Start         End      Blocks   Id  System
>>> /dev/hdc1   *           1          13      104391   83  Linux
>>> /dev/hdc2              14        9729    78043770   8e  Linux LVM
>>>
>>> Still no luck though.
>>
>>     Well, that's an LVM volume. You have to run first pvscan (or lvm 
>> pvscan) and see what physical volumes are created (let's hope you'll 
>> find /dev/hdc2 there) and what volume groups are available on that 
>> physical volume. After that you have to run lvscan (or lvm lvscan) and 
>> see what logical volumes are available (assuming that the current 
>> running kernel supports the LVM version of that volume).
>>
>>     Running pvscan rull generate the and output alike with the following:
>>
>> pvscan -- reading all physical volumes (this may take a while...)
>> pvscan -- ACTIVE   PV "/dev/hdc2" of VG "Volume00" [33.59 GB / 0 free]
>> pvscan -- total: 1 [33.60 GB] / in use: 1 [33.60 GB] / in no VG: 0 [0]
>>
> 
> Thanks Tarhon. Pvscan doesn't show /dev/hdc2 at all. Does pvscan only 
> work on mounted drives?
> 

No, pvscan lists all disks/partitions that are registered to be used for 
LVM. If it doesn't show up in pvscan, you never ran pvcreate on it or 
you deleted it from LVM with pvremove.