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To: linux-btrfs@vger.kernel.org
From: Jean-Denis Girard <jd.girard@sysnux.pf>
Subject: Re: Undelete files / directory
Date: Thu, 28 Aug 2014 07:04:55 -1000
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References: <53FE1DB2.8040900@sysnux.pf> <pan$2ed7a$1001c22e$8c89f27e$d20dc522@cox.net> <262E2EAA-FE5F-4ADB-9D1D-258D51D81AFE@colorremedies.com>
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Hi Chris,

Thanks for your detailed answer.

Le 28/08/2014 06:25, Chris Murphy a écrit :
> 9. btrfs-find-root /dev/sdc
> Super think's the tree root is at 29917184, chunk root 20987904
> Well block 4194304 seems great, but generation doesn't match, have=2, want=9 level 0
> Well block 4243456 seems great, but generation doesn't match, have=3, want=9 level 0
> Well block 29376512 seems great, but generation doesn't match, have=4, want=9 level 0
> Well block 29474816 seems great, but generation doesn't match, have=5, want=9 level 0
> Well block 29556736 seems great, but generation doesn't match, have=6, want=9 level 0
> Well block 29736960 seems great, but generation doesn't match, have=7, want=9 level 0
> Well block 29900800 seems great, but generation doesn't match, have=8, want=9 level 0

Here is what the command returns :

[root@x220 ~]# btrfs-find-root /dev/mapper/home
Super think's the tree root is at 115230801920, chunk root 131072
Went past the fs size, exiting[root@x220 ~]#

I just tried with latest btrfs-progs (from git), it returns exactly the
same.

The btrfs partition is on top of dm-crypt, could it be a problem?


Thanks,
Jean-Denis Girard