Is there anyway to recover a lost VolGroup if I have the UUID?
thanks,
David
On Wed, Oct 21, 2009 at 3:03 PM, Lou Arnold <larnolda1@gmail.com> wrote:
I read the How-To. It doesn't talk about the specific case or being mounted at root, so I had to experiment. It is likely that commands were in the wrong order, but I don't know what the right order is.I have attached the terminal session I used. In the end it did not work. There was still 66 GB free, and when I rebooted, the file system failed. The superblock was too big.I obviously don't understand the difference between pvresize, lvreduce and vgreduce, and how resize2fs is related to these commands.Hope you can help,Lou.
On 10/21/09, Drew <drew.kay@gmail.com> wrote:> The documentation wasn't specific. I believe the intent was simply to
> migrate the data to another logical volume to temporarily allow the source
> volume to be reduced and/or removed. But let's assume that has happened or
> that doesn't need to happen. So now we need to unmount LogVol00, reduce it
> to its original nunber of extents and then remount it (either before or
> after remount we remove the physical drive.) I assume you can't try this or
> you'll screw up your computer, but I have a system that I screw up and
> easily restore from a OS image. So no need to be too cautious.
I've done this on several occasions.
If you want to play with various scenarios in LVM, I'd recommend
reading the LVM How-To @ http://tldp.org/HOWTO/LVM-HOWTO/ . Sections
11 & 13 cover the most common tasks you'll encounter in LVM. Play
around, don't be afraid to break things, and if you have questions
feel free to give the list a shout.
--
Drew
"Nothing in life is to be feared. It is only to be understood."
--Marie Curie
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