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-rw-r--r--man/btrfs.8.in17
1 files changed, 4 insertions, 13 deletions
diff --git a/man/btrfs.8.in b/man/btrfs.8.in
index 9b1f2945..7df2eadb 100644
--- a/man/btrfs.8.in
+++ b/man/btrfs.8.in
@@ -265,22 +265,13 @@ it with the new desired size. When recreating the partition make sure to use
the same starting disk cylinder as before.
.TP
-\fBfilesystem label\fP\fI <dev> [newlabel]\fP
-Show or update the label of a filesystem. \fI<dev>\fR is used to identify the
-filesystem.
+\fBfilesystem label\fP\fI [<device>|<mountpoint>] [newlabel]\fP
+Show or update the label of a filesystem. \fI[<device>|<mountpoint>]\fR is used
+to identify the filesystem.
If a \fInewlabel\fR optional argument is passed, the label is changed. The
following constraints exist for a label:
.IP
-- the maximum allowable length shall be less or equal than 256 chars
-.IP
-- the label shall not contain the '/' or '\\' characters.
-
-NOTE: Currently there are the following limitations:
-.IP
-- the filesystem has to be unmounted
-.IP
-- the filesystem should not have more than one device.
-.TP
+- the maximum allowable length shall be less than 256 chars
\fBfilesystem show\fR [--all-devices|<uuid>|<label>]\fR
Show the btrfs filesystem with some additional info. If no \fIUUID\fP or