btrfs unmountable: read block failed check_tree_block; Couldn't read tree root

2014-10-27 Thread Ansgar Hockmann-Stolle
y per loopback device. But everything failed with: kernel: BTRFS: failed to read tree root on dm-2 See http://pastebin.com/raw.php?i=dPnU6nzg. Any hints where to go from here? Ciao Ansgar -- Ansgar Hockmann-Stolle, Universität Osnabrück, Rechenzentrum Albrechtstraße 28, 49076 Osna

Re: btrfs unmountable: read block failed check_tree_block; Couldn't read tree root

2014-10-27 Thread Ansgar Hockmann-Stolle
Am 27.10.14 um 14:23 schrieb Ansgar Hockmann-Stolle: Hi! My btrfs system partition went readonly. After reboot it doesnt mount anymore. System was openSUSE 13.1 Tumbleweed (kernel 3.17.??). Now I'm on openSUSE 13.2-RC1 rescue (kernel 3.16.3). I dumped (dd) the whole 250 GB SSD to some USB

Re: btrfs unmountable: read block failed check_tree_block; Couldn't read tree root

2014-10-28 Thread Ansgar Hockmann-Stolle
Am 28.10.14 um 02:40 schrieb Qu Wenruo: Original Message Subject: Re: btrfs unmountable: read block failed check_tree_block; Couldn't read tree root From: Qu Wenruo To: Ansgar Hockmann-Stolle , Date: 2014年10月28日 09:05 Original Message Subject: Re:

Re: btrfs unmountable: read block failed check_tree_block; Couldn't read tree root

2014-10-28 Thread Ansgar Hockmann-Stolle
Duncan <1i5t5.duncan cox.net> writes: [..] > > Hope that helps! =:^) > Thanks a lot for that many hints! Unfortunately, btrfs restore does not find the tree root and so it does not find anything. I will wait for Qu Wenruo to enhance chunk-recovering. And in the meantime I will test openSUSE 1

Re: [PATCH 03/11] Btrfs-progs: allow fsck to take the tree bytenr

2014-11-04 Thread Ansgar Hockmann-Stolle
Josef Bacik fb.com> writes: > Sometimes we have a pretty corrupted fs but have an old tree bytenr that we > could use, add the ability to specify the tree root bytenr. Thanks, > > Signed-off-by: Josef Bacik fb.com> Tested-by: Ansgar Hockmann-Stolle uni-osnabrueck.de> Thi

[SOLVED] btrfs unmountable: read block failed check_tree_block; Couldn't read tree root

2014-11-04 Thread Ansgar Hockmann-Stolle
For solution see http://article.gmane.org/gmane.comp.file-systems.btrfs/39974 Am 28.10.14 um 00:03 schrieb Ansgar Hockmann-Stolle: Am 27.10.14 um 14:23 schrieb Ansgar Hockmann-Stolle: Hi! My btrfs system partition went readonly. After reboot it doesnt mount anymore. System was openSUSE 13.1