On Fri, Feb 10, 2012 at 08:30:51PM +0100, btrfs@xxxxxxxxxxx wrote: > Hi! > > I used to have arch linux running on 1 btrfs partition (sda1, incl. /boot). > When switching to 3.2.5 recently the system fails to boot: > > (after udevd) > /etc/rc.sysinit: line 15: 117 Bus error mountpoint -q /proc > and so on, no idea. > > It used to boot with 3.2.4, but > > 1) I obviously had some corruption in the tree, when I tried to delete a > certain file I hit e.g. "kernel BUG at fs/btrfs/extent-tree.c" message. > > 2) Even while running 3.2.4 I was unable to mount the partition from a > parallel gentoo or live USB install and I still am: > > # mount /dev/sda1 /mnt/arch/ > mount: /dev/sda1: can't read superblock > > The strange thing is: when trying to boot from the partition the > boot loader (syslinux) is > obviously still able load the kernel from that partition. > > Tried btrfs-zero-log and some deperate other things. Result: I can > now actually > execute btrfsck which previously used to fail: Ok, step one: Pull down the dangerdonteveruse branch of btrfs-progs: git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-progs.git dangerdonteveruse Run btrfs-debug-tree -r /dev/sda1 and send the output here please. This block with bad transid is from your FS root. We'll need to a root that matches. But we should be able to patch things up! -chris -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
