btrfs-progs/Documentation/btrfs-restore.txt

btrfs-restore(8)
================

NAME
----
btrfs-restore - try to restore files from a damaged btrfs filesystem(unmounted)

SYNOPSIS
--------
*btrfs restore* [options] <device> <path> | -l <device>

DESCRIPTION
-----------
*btrfs restore* is used to try to salvage files from a damaged filesystem and
restore them into <path> or just list the tree roots.

Since current `btrfs-check`(8) or `btrfs-rescue`(8) only has very limited usage,
*btrfs restore* is normally a better choice.

NOTE: It is recommended to read the following btrfs wiki page if your data is
not salvaged with default option: +
https://btrfs.wiki.kernel.org/index.php/Restore

OPTIONS
-------
-s::
get snapshots, btrfs restore skips snapshots in default.

-x::
get extended attributes.

-v::
verbose.

-i::
ignore errors.

-o::
overwrite directories/files in <path>.

-t <bytenr>::
use <bytenr> to read root tree.

-f <bytenr>::
only restore files that are under specified root whose root bytenr is <bytenr>.

-u <mirror>::
use given superblock mirror identified by <mirror>, it can be 0,1,2.

-r <rootid>::
only restore files that are under specified root whose objectid is <rootid>.

-d::
find dir.

-l::
list tree roots.

-D|--dry-run::
dry run (only list files that would be recovered).

--path-regex <regex>::
restore only filenames matching regex, you have to use following syntax (possibly quoted):
^/(|home(|/username(|/Desktop(|/.*))))$

-c::
ignore case (--path-regrex only).

EXIT STATUS
-----------
*btrfs restore* returns a zero exit status if it succeeds. Non zero is
returned in case of failure.

AVAILABILITY
------------
*btrfs* is part of btrfs-progs.
Please refer to the btrfs wiki http://btrfs.wiki.kernel.org for
further details.

SEE ALSO
--------
`mkfs.btrfs`(8),
`btrfs-rescue`(8),
`btrfs-check`(8)