Re: BTRFS critical: corrupt leaf, slot offset bad; then read-only

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Hello Hans,


Am 22.02.2017 um 20:40 schrieb Hans van Kranenburg:

Question here is... is it easier for you to nuke the filesystem and
restore the files from somewhere else, or do you want to figure out
manually if it's recoverable, and spend some time with dd, hexedit,
reading struct definitions in btrfs kernel C code etc...

If the regular --repair can't fix it (and it can't do magic if you shoot
a hole in it with a shotgun), then there's no automated other tool that
can do it now.

Since it's block 5242107641856 all the time, it might be worthwhile to
have a look at it. Either it's that block, or there's a bigger mess
hidden behind it.


Thanks for all the inputs here and on IRC. I now have a good understanding of what can
and what cannot be done realistically.

The files are still fully readable and I'm going to backup as much data as I can over the
next few days.

Once that is done, I would like to go over the "btrfs recovery" thread and see if it can be applied for my case as well. I will certainly need your help when that time comes...


Thanks for all your help,

Lukas

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