[SOLVED] Help Reconstructing LVM array

Barvinok · n00b Joined: 29 Sep 2013 Posts: 34 Location: Ukraine

Hi,

My home NAS was built from some "scrap details" such as two 250 GB IDE drives + one 1 TB SATA drive.
All drives used GPT and were LVMed in RAID0 manner to form single joined ~1.5TB partition. All worked well.

Now the mobo had died. The drives are fine though.
The replacement mobo came without an IDE interface. I've got an IDE-to-USB adapter and now I'm slowly dumping the GPT partitions from both IDE drives to some other SATA drives as binary image files.
By tomorrow, I'll have the system booted from LiveCD, seeing the aforementioned 1TB SATA natively and seeing two images of the drives used to form LVM array with the big one.

My goal is to reconstruct the LVM array to be able to copy some sensitive data which may (and will) span all three drives.

So, how do I tell LVM to use the drive image files instead of an actual drive?
_________________
Unlike reality, stupidity is inescapable

djdunn · l33t Joined: 26 Dec 2004 Posts: 810

if you want to continue to use the IDE disks, you can get ide/sata adaptors to plug an ide drive into a sata motherboard for about 10$USD each
_________________
“Music is a moral law. It gives a soul to the Universe, wings to the mind, flight to the imagination, a charm to sadness, gaiety and life to everything. It is the essence of order, and leads to all that is good and just and beautiful.”

― Plato

Barvinok · n00b Joined: 29 Sep 2013 Posts: 34 Location: Ukraine

NeddySeagoon · Posted: Mon Apr 21, 2014 8:39 pm Post subject:

Barvinok,

Your kernel will need loop support.
Now you can use losetup to get a /dev entry for each partition in the image files.

I don't know if vgchange -ay will see the loop devices though.
_________________
Regards,

NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.

Barvinok · n00b Joined: 29 Sep 2013 Posts: 34 Location: Ukraine