using parted, I accidentally deleted /dev/sda2. Once I realized this (before even exiting parted), I rescued the partition with the rescue command. All seemed good until I rebooted, now I get:

Volume Group "VolGRoup00" not found

... and the machine won't boot.

Is there a way I can get this working again?

edit: If I boot up in knoppix, I can see (using qtparted) that there is a /dev/sda1, /dev/sda-1, /dev/sda2, /dev/sda-2. I can't mount any of them by hand, i.e. "mount /dev/sda1 some_dir" does not work, however, knoppix has somehow mapped the drives to some very long unique id & from those, I can get to all my data.

So my question is this - is there a way to recover this stuff in such a way that this will all work again? I suppose I could copy all of it to another device, make new partitions (non-lvm), copy the data back, then update my grub. That seems a bit convloluted - is there a better way? I'd be happy to just rebuild the lvm, I'm just not sure how.

Which mount points have the data, and what device do they correspond to? It should be able to recover easily.

the mount points that knoppix uses is something like /dev/mapped/dd-1dsjklnfskjnfsdksdui98weu98u - not at all useful. I can't see what the mapped device actually maps to. The file /dev/mapped/dd-1foijosfdijsdfoifsd is no a symbolic link or anything, and is, in fact, empty. I can not mount through the normal mount points i.e. /dev/sda1 or /dev/sda2. I don't know how knoppix has managed to mount it.

I'm really in a bind here - if anyone has a suggestion, please chime in.

FYI: the data was still available via /dev/sda1 & sda2. I'm not sure why I couldn't mount them that way under Knoppix.

I solved my problem by editing my grub & fstab so that it was looking at sda's instead of VolumeGroups. All is well.