On Wed, Jun 23, 2010 at 10:40 AM, Alan Chandler <a...@chandlerfamily.org.uk>wrote:
> I feel I should move my entire /etc/fstab over to using uuids > > However after installation I added the following line > > /dev/raid/bak /bak ext4 defaults 0 2 > > which I now need to convert to a uuid (/dev/raid/bak is an lv on the > "raid" volume group) > > if I look in /dev/disk/by-id I can locate the following > > lrwxrwxrwx 1 root root 10 Jun 21 19:20 dm-name-raid-bak -> ../../dm-0 > > which shows me that this has been mapped to /dev/dm-0 > > However, I now have two options > > in /dev/disk/by-id there is the following (excuse the word wrap) > > lrwxrwxrwx 1 root root 10 Jun 21 19:20 > dm-uuid-LVM-25HQ5BuXqjSs2y53Aj4C8zMHEX1ZrgBieFN7ln0AYSPSwzxCh5ylxoM3kRzS9gCe > -> ../../dm-0 > > and in /dev/disk/by-uuid (again excuse the word wrap) > > lrwxrwxrwx 1 root root 10 Jun 21 19:20 f3408fda-0649-414f-8446-c01cf4e07558 > -> ../../dm-0 > > There seems to be no correspondence between them > > Which do I use, and what does the other one mean? > Get your uuid from dumpe2fs -h /dev/vg/lv | grep UUID But /dev/vg/lv is a persistent name, so no sense changing it to uuid, or maybe I'm missing something ? Regards,
