On Thu, 16 Jan 2014 10:20:42 -0800, Vladi Gergov wrote: > Thanks Miao, > > I have tried to mount it with -o degraded and -o recovery here is the > outputs: > > [216094.269443] btrfs: device label das4 devid 2 transid 107954 > /dev/loop7 > [216094.281965] btrfs: device label das1 devid 7 transid 1168964 > /dev/sdi > [216094.313419] btrfs: device label das4 devid 3 transid 107954 /dev/sdj > [216113.887503] btrfs: device label das4 devid 2 transid 107954 > /dev/loop7 > [216113.888690] btrfs: allowing degraded mounts > [216113.889440] btrfs: failed to read chunk root on loop7 > [216113.905742] btrfs: open_ctree failed > [216135.144739] btrfs: device label das4 devid 2 transid 107954 > /dev/loop7 > [216135.145996] btrfs: enabling auto recovery > [216135.146783] btrfs: failed to read chunk root on loop7 > [216135.155985] btrfs: open_ctree failed > > any other suggestions? Thanks again. Is loop7 used to instead of the bad device /dev/sdi? If so, I think we should erase the data in the loop7, and then >> # mount <dev> -o degraded <mnt> >> # btrfs replace start missing <new_dev> Thanks Miao > > On Thursday, 16.01.14 at 10:10, Miao Xie wrote: >> On wed, 15 Jan 2014 11:40:09 -0800, Vladi Gergov wrote: >>> Hi, in 2010 i had an issue with my raid1 when one drive failed and i >>> added another drive to the array and tried to rebuild. Here is what bug >>> I hit according to Chris Mason >>> http://www.mail-archive.com/linux-btrfs@xxxxxxxxxxxxxxx/msg06868.html >>> >>> I have since updated to lastes btrfs-tools 3.12 + kernel 3.13-rc7 and >>> attempted an chunk recovery which failed with this >>> http://bpaste.net/show/168445/ >>> >>> If anyone can help me get at least some of the data off this bad boy it >>> would be great! I am cc'ing Miao since his name was thrown under the bus >>> in irc :). Thanks in advance! >>> >> >> Chunk recover command can only recover the case that the devices are good, only >> the chunk tree is corrupted. So it is not suitable to fix your issue. >> >> I think you can try the replace function if you can mount the device successfully, >> just like: >> # mount <dev> -o degraded <mnt> >> # btrfs replace start missing <new_dev> >> >> Thanks >> Miao >> > -- 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
