> -----Original Message----- > From: linux-btrfs-ow...@vger.kernel.org > [mailto:linux-btrfs-ow...@vger.kernel.org] On Behalf Of Lentes, Bernd > Sent: Tuesday, October 24, 2017 6:44 PM > To: Btrfs ML <linux-btrfs@vger.kernel.org> > Subject: RE: SLES 11 SP4: can't mount btrfs > > > > > > A short-term alternative, if you've got a full backup of what SLES > > mounts as /, is to run a regular install, boot the system, and then > > extract the backup on top of /. It's not perfect, but it should work > > well enough. > > That's what I'm currently trying. I will keep you informed. >
I was able to restore the root fs. I formatted the / partition with Btrfs again and could restore the files from a backup. Everything seems to be there, I can mount the Btrfs manually. But booting does not work. My Btrfs resides on a logical volume. I changed /boot/grub/menu.lst and /etc/fstab to point to the lv. Before it was pointing to a UUID. But booting my SLES complains that it does not find the root fs. screenshot: https://hmgubox.helmholtz-muenchen.de/f/2d6b374e8a8b40569d4f/?dl=1 I can manually mount from the booted SLES. So everything (Btrfs, lvm) seems to be available. I added in menu.lst and fstab the path to the device node (/dev/vg1/lv_root), which works on other systems the same way, the only difference is there I have ext3. But SLES finds from where I don't know a UUID (see screenshot). This UUID is commented out in fstab and replaced by /dev/vg1/lv_root. Using /dev/vg1/lv_root I can manually mount my Btrfs without any problem. Where does my SLES find that UUID ? It is not available unter /dev/disk/by-uuid. Can I change that value ? Thanks for any help. Bernd Helmholtz Zentrum Muenchen Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH) Ingolstaedter Landstr. 1 85764 Neuherberg www.helmholtz-muenchen.de Aufsichtsratsvorsitzende: MinDir'in Baerbel Brumme-Bothe Geschaeftsfuehrer: Prof. Dr. Guenther Wess, Heinrich Bassler, Dr. Alfons Enhsen Registergericht: Amtsgericht Muenchen HRB 6466 USt-IdNr: DE 129521671 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
