[K12OSN] Help! I just hosed my whole system...

Petre Scheie petre at maltzen.net
Tue Feb 1 14:49:14 UTC 2005

I think your system is toast.  While you might, MIGHT be able to get the 40GB 
drive back into Vol00 using vgextend, the system would most likely 1) refuse to 
let you modify Vol00 since it's already broken; 2) if it did allow you to add 
it, it would treat it as a new disk being added to the volume group rather than 
as the old one being put back in.  I think scenario #1 is most likely, and you'd 
spend a lot of time trying to get it back in there, such that it would be faster 
to just start over.  If you start over, you can either re-do the disk 
allocations manually, so that you can keep the 40GB from being part of Vol00; or 
you might just unplug the drive during the installation, take the default disk 
partitioning that will be done to the 13GB, and then when installation is 
complete, plug the 40GB back in, and allocate it as you wish.


Carl Keil wrote:
> OK, I just did something phenomenally stupid.  Maybe one of you gurus 
> has the answer, or you can tell me, definitively, that I'm out of luck 
> so I can get busy rebuilding the system.
> Here's the background.  I installed K12LTSP using the default 
> partitioning settings.  I had 2 hard drives in there though, one was 13 
> gig and one was 40 gig.  I was intending to put the /home partition on 
> the 40 gig after everything was installed and stable.  I forgot about 
> all that "LVM" stuff that I didn't understand during the install.
> So, I was using some instructions that someone on this list gave me.  I 
> got to the line that said mkfs -t ext3 /dev/hdb1 and everything looked 
> fine.  After that executed though and the command prompt returned my 
> computer froze.  On reboot I got a message about not all parts of a 
> certain [Foobar]Vol00 (I'm sorry I can't remember exactly what it was 
> called) not being able to be found.
> What I'm assuming happened is that the 40 gig drive was somehow married 
> to the 13 gig.  And it was already formatted as part of an LVM 
> structure, when I put the ext3 file system on that part of the partition 
> I hosed that arrangement and now I'm completely screwed.  Is this a 
> correct assessment?  If not, what do I have to do to put the LVM back 
> together again?
> Any help, advice, claps on the shoulder, would be most appreciated now.
> Thanks a lot,
> ck
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