64 Studio 3.0 and LVM2

  • wadubois
Posted: Sun, 08/23/2009 - 20:14
Greetings all! I'm a new member to the forum and, indeed, to 64 Studio in general. My overall frustration with UbuntuStudio 9.04 finally reached it's peak recently and I decided to (finally) give 64 Studio a try. I've fresh-installed 64 Studio 3.0 beta 3 on a free partition to my music box and run into a slight problem. I can't get the new system to recognize my existing LVM2 partition. This is a bit of a deal-breaker for me since that's where I keep *all* my studio resources, i.e., projects, soundfonts, samples, etc.. Everything. I've still got an old 32-bit UbuntuStudio (hardy) install on another partition, and am able to switch back and forth to check and compare. I figured it wouldn't be all that hard to pinpoint since Studio 3.0 is Hardy-derived, but this one's got me completely baffled. Briefly (what I've tried/checked): 1st thing I did was to export the partition from UbuntuStudio. No problems. Switched to 64 Studio and then tried to import the partition with: ~~~ wdubois@64studio:~$ sudo vgimport -a No volume groups found ~~~ vgscan gives similar results: ~~~ wdubois@64studio:~$ sudo vgscan -vv Setting global/locking_type to 1 File-based locking selected. Setting global/locking_dir to /var/lock/lvm Wiping cache of LVM-capable devices Wiping internal VG cache Reading all physical volumes. This may take a while... Finding all volume groups No volume groups found ~~~ Same for pvscan. However, the same commands on the Hardy partition properly show the volume groups and show that it's been exported. I've even go so far as to compare module listings from both envirionments to see if there was any difference in loaded modules with, unfortunately, negative results. FWIW, I'm running one of Quentin's kernels: wdubois@64studio:~$ uname -a Linux 64studio 2.6.29.3-rt13-20090516 #1 SMP PREEMPT RT Sat May 16 00:35:44 SAST 2009 x86_64 GNU/Linux Any ideas? - wayne

re: lvm

  • wadubois
  • 08/23/09
  • Mon, 08/24/2009 - 16:22
Thanks, Quentin. I appreciate any insight you can bring. It's not like anything I've run into before. I can see the partition, I can see that it's an LVM partition. But, none of the lvm2 tools seem to recognize it. About the only thing I haven't yet done is to go through the kernel config to see what's changed. - w

lvm

  • Quentin Harley
  • 05/24/07
  • Sun, 08/23/2009 - 21:30
I used system-config-lvm on my Myth-tv box to create and use LVM. Just tried to backport it for hardy (not available in the default repositories) and while it backported fine, it has some issues running... I will give it another shot tomorrow or the day after. I just returned from far, and I need to get some urgent work out of the way. Cheers, Quentin

Addendum...

  • wadubois
  • 08/23/09
  • Sun, 08/23/2009 - 21:23
I'm running a 64-bit system: ~~~ processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 75 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 4600+ stepping : 2 cpu MHz : 2411.374 ~~~ with 4Gb ram and one 312Gb HD: ~~~ wdubois@64studio:~$ cat /proc/partitions major minor #blocks name 8 0 312571224 sda 8 1 58107073 sda1 8 2 481950 sda2 8 3 29294527 sda3 8 4 224685090 sda4 ~~~