Hi, I have a btrfs partition on a usb external hard drive which doesn't mount anymore. I tried doing a btrfs check on it, but it fails with the error on the subject. The btrfs progs were compiled from git today. I have a backup of this partition elsewhere, so I can restore from there if all else fails. The output of sudo btrfs check --repair /dev/sdc1 > ~/log/btfs-repair-1.log 2>&1 was parent transid verify failed on 7624175616 wanted 1431 found 1428 parent transid verify failed on 7624175616 wanted 1431 found 1428 Ignoring transid failure leaf parent key incorrect 7624175616 checking extents parent transid verify failed on 7624175616 wanted 1431 found 1428 Ignoring transid failure ... leaf parent key incorrect 7717249024 Unable to find block group for 0 btrfs: extent-tree.c:283: find_search_start: Assertion `!(1)' failed. enabling repair mode Checking filesystem on /dev/sdc1 UUID: 42688de3-f4ed-4592-bb34-02c9d5014e51 best, -- Miguel Negrão http://www.friendlyvirus.org/miguelnegrao
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