On Sat, Jan 07, 2012 at 01:05:08PM +0100, Kai Krakow wrote: > Hi! > > Michael Andreen <harv@xxxxxxx> schrieb: > > The find-root program seems to think there is a root (and poentially some > > older roots?), but not sure how to use that information. > [...] > > Anything else I can do to debug this or potentially recover a few bits > > before reformatting? > > You could try the recovery programs from Josefs btrfs-progs tree[1]. You'll find what little documentation we have on the restore program here: http://btrfs.ipv5.de/index.php?title=Restore With luck, you'll just need to run restore, but there's also a little bit on how to read and use the output of find-root. Hugo. > You > could also try using kernel 3.2 which allows mounting in recovery mode. This > mode tries to find an older tree root. But I think your kernel did not keep > tree root backups for this purpose as it is AFAIR a feature of later > kernels. > > Better use a newer kernel - best use 3.2. There are bunch of fixes which > improve the situation with lost file systems after unexpected reboots or > power outages. > > HTH > Kai > > [1] https://github.com/josefbacik/btrfs-progs > -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 515C238D from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Computer Science is not about computers, any more than --- astronomy is about telescopes.
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