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| -rw-r--r-- | Documentation/Makefile.in | 1 | ||||
| -rw-r--r-- | Documentation/btrfs-select-super.asciidoc | 29 |
2 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/Makefile.in b/Documentation/Makefile.in index 0c8b5ba..b03eaf2 100644 --- a/Documentation/Makefile.in +++ b/Documentation/Makefile.in @@ -9,6 +9,7 @@ MAN8_TXT += btrfs-find-root.asciidoc MAN8_TXT += btrfs-image.asciidoc MAN8_TXT += btrfs-map-logical.asciidoc MAN8_TXT += btrfs-show-super.asciidoc +MAN8_TXT += btrfs-select-super.asciidoc MAN8_TXT += btrfstune.asciidoc MAN8_TXT += fsck.btrfs.asciidoc MAN8_TXT += mkfs.btrfs.asciidoc diff --git a/Documentation/btrfs-select-super.asciidoc b/Documentation/btrfs-select-super.asciidoc new file mode 100644 index 0000000..a8d7ef0 --- /dev/null +++ b/Documentation/btrfs-select-super.asciidoc @@ -0,0 +1,29 @@ +btrfs-select-super(8) +===================== + +NAME +---- +btrfs-select-super - overwrite superblock with a backup + +SYNOPSIS +-------- +*btrfs-select-super* -s number dev + +DESCRIPTION +----------- +*btrfs-select-super* destructively overwrites all copies of the superblock +with a specified copy. This helps with certain cases of damage, especially +when barriers were disabled during a power failure. You can find a valid +copy of the superblock with *btrfs check -s*. + +The filesystem specified by `dev` must not be mounted. + +OPTIONS +------- +-s|--super <superblock>:: +use <superblock>th superblock copy, valid values are 0 up to 2 if the +respective superblock offset is within the filesystem + +SEE ALSO +-------- +`btrfsck check`(8) |