IMHO if the previous instructions were too brief you ought not be doing this BOTOH how would you/interested naive users ever learn ... so more words ... painful unless you've no clue ...
On 15/04/2012, at 10:00 AM, [email protected] wrote: > I want to migrate away from a LVM Volume Group (2 disks) to a single > plain old disk (500G). > > Back story: A couple years I thought I might have to learn about LVM. > So I created a Volume Group using the Debian installer and have never > done anything else. > > My ideal solution (I think) is if there is a device I can `dd` from, > and I can just set the destination disk as a non LVM'd disk. > > Some output: > # vgdisplay > File descriptor 4 (/dev/urandom) leaked on vgdisplay invocation. > Parent PID 4932: bash > --- Volume group --- > VG Name erupt > System ID > Format lvm2 > Metadata Areas 2 > Metadata Sequence No 4 > VG Access read/write > VG Status resizable > MAX LV 0 > Cur LV 3 > Open LV 2 > Max PV 0 > Cur PV 2 > Act PV 2 > VG Size 146.71 GiB > PE Size 4.00 MiB > Total PE 37557 > Alloc PE / Size 37557 / 146.71 GiB > Free PE / Size 0 / 0 > VG UUID hrlysx-65nB-56Yt-VwUv-cC5O-wJIr-vjz4Jx > > # pvscan > File descriptor 4 (/dev/urandom) leaked on pvscan invocation. Parent > PID 4932: bash > PV /dev/sdb2 VG erupt lvm2 [36.79 GiB / 0 free] > PV /dev/sdc2 VG erupt lvm2 [109.92 GiB / 0 free] > Total: 2 [146.71 GiB] / in use: 2 [146.71 GiB] / in no VG: 0 [0 ] > > Is this asking to much? Without shadow of doubt dd will fail. Don't use dd unless you understand what you are doing and why. In general dd should be avoided (but apologies because it is often MOST useful, just not here) I assume your LVM disks are /dev/sda and /dev/sdb and the new disk is /dev/sdc. Adjust names as needed. as root, and in root's home: find / >list fdisk /dev/sdc create partitions eg /dev/sdc1 as root (say 10G) /dev/sdc2 as swap (say 1G) /dev/sdc3 as /home (the rest) mkfs.ext4 (ext4 or whatever you choose) /dev/sdc3 mount /dev/sda3 /mnt cat list | cpio -pdv > /mnt The choice of sdc3 sdc1 etc depends on what you know you are doing ie do you have a root partition and an LVM /home in this case I use /dev/sdc1 as root and /dev/sdc3 as /home reinstall grub/lilo depends so much on your distro. if in doubt INSTALL your distro on the sdc1 partition presumably by disconnectiong the two LVM discs and choosing /dev/sda1 as root and using /dev/sda3 as /home without formatting it James -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
