NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXIT STATUS | AVAILABILITY | SEE ALSO | COLOPHON

BTRFS-RESTORE(8)                Btrfs Manual                BTRFS-RESTORE(8)

NAME         top

       btrfs-restore - try to restore files from a damaged btrfs filesystem
       image

SYNOPSIS         top

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

DESCRIPTION         top

       btrfs restore is used to try to salvage files from a damaged
       filesystem and restore them into <path> or just list the subvolume
       tree roots. The filesystem image is not modified.

       If the filesystem is damaged and cannot be repaired by the other
       tools (btrfs-check(8) or btrfs-rescue(8)), btrfs restore could be
       used to retrieve file data, as far as the metadata are readable. The
       checks done by restore are less strict and the process is usually
       able to get far enough to retrieve data from the whole filesystem.
       This comes at a cost that some data might be incomplete or from older
       versions if they’re available.

       There are several options to attempt restoration of various file
       metadata type. You can try a dry run first to see how well the
       process goes and use further options to extend the set of restored
       metadata.

       For images with damaged tree structures, there are several options to
       point the process to some spare copy.

           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         top

       -s|--snapshots
           get also snapshots that are skipped by default

       -x|--xattr
           get extended attributes

       -m|--metadata
           restore owner, mode and times for files and directories

       -S|--symlinks
           restore symbolic links as well as normal files

       -v|--verbose
           be verbose and print what is being restored

       -i|--ignore-errors
           ignore errors during restoration and continue

       -o|--overwrite
           overwrite directories/files in <path>, eg. for repeated runs

       -t <bytenr>
           use <bytenr> to read the root tree

       -f <bytenr>
           only restore files that are under specified subvolume root
           pointed by <bytenr>

       -u|--super <mirror>
           use given superblock mirror identified by <mirror>, it can be 0,1
           or 2

       -r|--root <rootid>
           only restore files that are under a specified subvolume whose
           objectid is <rootid>

       -d
           find directory

       -l|--list-roots
           list subvolume tree roots, can be used as argument for -r

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

       --path-regex <regex>
           restore only filenames matching a regular expression (regex(7))
           with a mandatory format

           ^/(|home(|/username(|/Desktop(|/.*))))$

           The format is not very comfortable and restores all files in the
           directories in the whole path, so this is not useful for
           restoring single file in a deep hierarchy.

       -c
           ignore case (--path-regex only)

EXIT STATUS         top

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

AVAILABILITY         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of the btrfs-progs (btrfs filesystem tools)
       project.  Information about the project can be found at 
       ⟨https://btrfs.wiki.kernel.org/index.php/Btrfs_source_repositories⟩.
       If you have a bug report for this manual page, see 
       ⟨https://btrfs.wiki.kernel.org/index.php/Problem_FAQ#How_do_I_report_bugs_and_issues.3F⟩.
       This page was obtained from the project's upstream Git repository 
       ⟨git://git.kernel.org/pub/scm/linux/kernel/git/kdave/btrfs-progs.git⟩
       on 2017-03-13.  If you discover any rendering problems in this HTML
       version of the page, or you believe there is a better or more up-to-
       date source for the page, or you have corrections or improvements to
       the information in this COLOPHON (which is not part of the original
       manual page), send a mail to man-pages@man7.org

Btrfs v4.6.1                     03/12/2017                 BTRFS-RESTORE(8)