mount: add notes about UUIDs to the man page

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

diff --git a/sys-utils/fstab.5 b/sys-utils/fstab.5
index 91c31576c0f25c40eb24aacec70cbd0442d2d1d8..487480f06ad589e90980c6596fce499528c9eb13 100644 (file)
--- a/sys-utils/fstab.5
+++ b/sys-utils/fstab.5
@@ -88,9 +88,10 @@ writing LABEL=<label> or UUID=<uuid>,
 e.g., `LABEL=Boot' or `UUID=3e6be9de\%-8139\%-11d1\%-9106\%-a43f08d823a6'.
 
 It's also possible to use PARTUUID= and PARTLABEL=. These partitions identifiers
-are supported for GUID Partition Table (GPT) and MAC partition table only.
+are supported for example for GUID Partition Table (GPT).
 
 See
+.BR mount (8),
 .BR blkid (8)
 or
 .BR lsblk (8)

diff --git a/sys-utils/mount.8 b/sys-utils/mount.8
index 8a82e19e25272f1c5502315585f16163090eaccf..c99891888f98ac542d76d64ab9529f592d7bf86c 100644 (file)
--- a/sys-utils/mount.8
+++ b/sys-utils/mount.8
@@ -148,8 +148,13 @@ partition
 .B PARTUUID
 or
 .B PARTLABEL
-(partition identifiers are supported for GUID Partition Table (GPT) and MAC
-partition tables only).
+(partition identifiers are supported for example for GUID Partition Table (GPT)
+partition tables).
+
+Don't forget that there is no guarantee that UUIDs and labels are really
+unique, especially if you move, share or copy the device.  Use
+.BR "lsblk -o +UUID,PARTUUID"
+to verify that the UUIDs are really unique in your system.
 
 The recommended setup is to use tags (e.g. LABEL=<label>) rather than
 .B /dev/disk/by-{label,uuid,partuuid,partlabel}