Ubuntu Manpages

btrfs-restore

try to restore files from a damaged btrfs filesystem image

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

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

-s|--snapshots

get snapshots, btrfs restore skips snapshots in default.

-x|--xattr

get extended attributes.

-m|--metadata

restore owner, mode and times.

-S|--symlinks

restore symbolic links as well as normal files.

-v|--verbose

verbose.

-i|--ignore-errors

ignore errors.

-o|--overwrite

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|--super <mirror>

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

-r|--root <rootid>

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

-d

find dir.

-l|--list-roots

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-regex only).

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

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

mkfs.btrfs(8), btrfs-rescue(8), btrfs-check(8)