From: Karel Zak <kzak@redhat.com>
Date: Thu, 19 Apr 2012 12:40:06 +0000 (+0200)
Subject: mount: (new) add support for PARTUUID= and PARTLABEL=
X-Git-Tag: v2.22-rc1~512
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=eb0eb262cb4d757983c83241c5fd93ec5ba6b374;p=thirdparty%2Futil-linux.git

mount: (new) add support for PARTUUID= and PARTLABEL=

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/sys-utils/mount.8 b/sys-utils/mount.8
index 73fa367bc4..56897e9942 100644
--- a/sys-utils/mount.8
+++ b/sys-utils/mount.8
@@ -127,19 +127,25 @@ but there are other possibilities. For example, in the case of an NFS mount,
 may look like
 .IR knuth.cwi.nl:/dir .
 It is possible to indicate a block special device using its
-volume
+filesystem
 .B LABEL
 or
 .B UUID
-(see the \-L and \-U options below).
+(see the \-L and \-U options below) and
+partition
+.B PARTUUID
+or
+.B PARTLABEL
+(partition identifiers are supported for GUID Partition Table (GPT) and MAC
+partition tables only).
 
-The recommended setup is to use LABEL=<label> or UUID=<uuid> tags rather than
-.B /dev/disk/by-{label,uuid}
+The recommended setup is to use tags (e.g. LABEL=<label>) rather than
+.B /dev/disk/by-{label,uuid,partuuid,partlabel}
 udev symlinks in the /etc/fstab file. The tags are
 more readable, robust and portable. The
 .BR mount (8)
 command internally uses udev
-symlinks, so use the symlinks in /etc/fstab has no advantage over LABEL=/UUID=.
+symlinks, so use the symlinks in /etc/fstab has no advantage over the tags.
 For more details see
 .BR libblkid (3).
 
@@ -218,7 +224,7 @@ program does not read the
 .I /etc/fstab
 file if
 .I device
-(or LABEL/UUID) and
+(or LABEL, UUID, PARTUUID or PARTLABEL) and
 .I dir
 are specified. For example:
 .RS
diff --git a/sys-utils/mount.c b/sys-utils/mount.c
index f5df087ea0..a017f2f2d8 100644
--- a/sys-utils/mount.c
+++ b/sys-utils/mount.c
@@ -614,7 +614,10 @@ static void __attribute__((__noreturn__)) usage(FILE *out)
 	" -L, --label <label>     synonym for LABEL=<label>\n"
 	" -U, --uuid <uuid>       synonym for UUID=<uuid>\n"
 	" LABEL=<label>           specifies device by filesystem label\n"
-	" UUID=<uuid>             specifies device by filesystem UUID\n"));
+	" UUID=<uuid>             specifies device by filesystem UUID\n"
+	" PARTLABEL=<label>       specifies device by partition label\n"
+	" PARTUUID=<uuid>         specifies device by partition UUID\n"));
+
 	fprintf(out, _(
 	" <device>                specifies device by path\n"
 	" <directory>             mountpoint for bind mounts (see --bind/rbind)\n"