diff options
| author | Rakesh Pandit <rakesh@tuxera.com> | 2014-03-05 02:12:23 +0200 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2014-03-21 06:23:33 -0700 |
| commit | afb7de0da23676a37b2f28ced315889541591f69 (patch) | |
| tree | 8e518768b6df564a693654ea1b7f603b53532664 /man | |
| parent | 12b727a48619ffb78ff32b7aa8d375730182d3e3 (diff) | |
Btrfs-progs: remove unused variable and update btrfs-image man page
Remove unused variable in btrfs-image.c (update_super) and update man
page documentation about -r option. Running btrfsck on a restored
image produces missing chunk information. This is because by default,
btrfs-image fixes up chunk tree to use 1 stripe pointing to the
primary device. This in turns results in btrfsck making some noise.
$ ./mkfs.btrfs /dev/sdb2 -f
$ ./btrfs-image /dev/sdb2 btrfs_image_output
$ ./btrfs-image -r btrfs_image_output disk-image
$ ./btrfsck disk-image
Device extent[1, 29360128, 8388608] didn't find the relative chunk.
Device extent[1, 1111490560, 1073741824] didn't find the relative chunk.
Ideally btfsck should be updated to reflect this default behavior and
not through these messages, but it isn't harmful and can be done
later.
Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'man')
| -rw-r--r-- | man/btrfs-image.8.in | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/man/btrfs-image.8.in b/man/btrfs-image.8.in index d5ba594a..3f51f3f3 100644 --- a/man/btrfs-image.8.in +++ b/man/btrfs-image.8.in @@ -17,7 +17,10 @@ is the image file that btrfs-image creates. When used with \fB-r\fP option, .SH OPTIONS .TP \fB\-r\fP -restore metadump image. +Restore metadump image. By default, this fixes super's chunk tree, by +using 1 stripe pointing to primary device, so that file system can be +restored by running tree log reply if possible. To restore without +changing number of stripes in chunk tree check \fB-o\fP option. .TP \fB\-c\fR \fIvalue\fP compression level (0 ~ 9). |