Hello, I have a fresh (few days old) installation of Lenny (Debian 5.0, stable) system. This installation was performed on single disk - used drive, unfortunately. As S.M.A.R.T is reporting potential disk failure, I need to move the system to a new HDD. This new drive is bigger than the current one, so I can't just 'dd' from old one to the new (and I'm not even sure if this could work - because of UUIDs different for new disk?).
In LVM-HOWTO I found procedure for removing old drives from volume group. Just create new PV on new disk, add the new PV to volume group, move existing data out of old physical volume using 'pvmove old_pv new_pv', remove old disk from volume group using 'vgreduce' and remove old drive, rebooting the system. I guess this could work if only /home (or similar, not important during bootup filesystems) were on LVM, but default Debian install leaves only /boot on normal partition, putting all the rest (/, /home, swap) on LVM logical volumes. But when / is on LVM, I expect trouble booting system from new disk (changed UUIDs? wrong root LV label in initramfs?) What steps do I need to perform to be able to boot system from new disk? Had anyone do similar operation? New disk will be temporairly /dev/hdc, and after upgrade it will be moved to /dev/hda, in place of current faulty one. Does it influence PV name (currently /dev/hda2, on new disk it will probably be /dev/hdc2)? Simple 'update-grub', after booting from any LiveCD (like GRML) and chrooting to new disk, would do? Or maybe I have to update initramfs to point to correct PV (or does it use only LV and initramfs's devmapper should figure it out, that root is on different PV now) My system's current layout is: /etc/fstab (stripped from unimportant data) /dev/mapper/mongoose--vg01-root / ext3 /dev/hda1 /boot ext2 /dev/mapper/mongoose--vg01-home /home ext3 /dev/mapper/mongoose--vg01-swap_1 none swap # fdisk -l /dev/hda Device Boot Start End Blocks Id System /dev/hda1 * 1 31 248976 83 Linux /dev/hda2 32 24321 195109425 8e Linux LVM # vgdisplay --- Volume group --- VG Name mongoose-vg01 System ID Format lvm2 Metadata Areas 1 Metadata Sequence No 4 VG Access read/write VG Status resizable MAX LV 0 Cur LV 3 Open LV 3 Max PV 0 Cur PV 1 Act PV 1 VG Size 186,07 GB PE Size 4,00 MB Total PE 47634 Alloc PE / Size 47634 / 186,07 GB Free PE / Size 0 / 0 VG UUID NygOpX-FYnl-xCqn-Lp2w-xJ5X-Yshs-cRvNND # pvdisplay --- Physical volume --- PV Name /dev/hda2 VG Name mongoose-vg01 PV Size 186,07 GB / not usable 561,00 KB Allocatable yes (but full) PE Size (KByte) 4096 Total PE 47634 Free PE 0 Allocated PE 47634 PV UUID QSWVsg-wAMw-SMA4-ES0N-0bFi-otbn-A3EzXS # lvdisplay --- Logical volume --- LV Name /dev/mongoose-vg01/root VG Name mongoose-vg01 LV UUID AK2MWV-EqId-duJm-5i10-Kche-ktwt-suw12y LV Write Access read/write LV Status available # open 1 LV Size 6,52 GB Current LE 1668 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:0 --- Logical volume --- LV Name /dev/mongoose-vg01/swap_1 VG Name mongoose-vg01 LV UUID 18unpG-yVB6-lGdP-jIiH-Pcqd-iYv9-VL5uRA LV Write Access read/write LV Status available # open 2 LV Size 732,00 MB Current LE 183 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:1 --- Logical volume --- LV Name /dev/mongoose-vg01/home VG Name mongoose-vg01 LV UUID 6NBBNw-Nd3e-K2bp-Ds7p-R9UY-qs1S-JSml9y LV Write Access read/write LV Status available # open 1 LV Size 178,84 GB Current LE 45783 Segments 1 Allocation inherit Read ahead sectors auto - currently set to 256 Block device 254:2 and relevant entries from /boot/grub/menu.lst title Debian GNU/Linux, kernel 2.6.26-1-686 root (hd0,0) kernel /vmlinuz-2.6.26-1-686 root=/dev/mapper/mongoose--vg01-root ro initrd /initrd.img-2.6.26-1-686 title Debian GNU/Linux, kernel 2.6.26-1-686 (single-user mode) root (hd0,0) kernel /vmlinuz-2.6.26-1-686 root=/dev/mapper/mongoose--vg01-root ro single initrd /initrd.img-2.6.26-1-686 -- Cheers, Jacek Politowski -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
