summaryrefslogtreecommitdiffstats
path: root/sys-utils/umount.8
diff options
context:
space:
mode:
Diffstat (limited to 'sys-utils/umount.8')
-rw-r--r--sys-utils/umount.812
1 files changed, 10 insertions, 2 deletions
diff --git a/sys-utils/umount.8 b/sys-utils/umount.8
index f3f419acc..80df50cc5 100644
--- a/sys-utils/umount.8
+++ b/sys-utils/umount.8
@@ -75,9 +75,17 @@ This option is only supported on systems where /etc/mtab is a symlink
to /proc/mounts.
.TP
.BR \-c , " \-\-no\-canonicalize"
-Do not canonicalize paths. For more details about this option see the
+Do not canonicalize paths. The paths canonicalization is based on
+.BR stat (2)
+and
+.BR readlink (2)
+system calls. These system calls may hang in some cases (for example on NFS if
+server is not available). The option has to be used with canonical path to the
+mount point.
+
+For more details about this option see the
.BR mount (8)
-man page. Note that \fBumount\fR does not pass this option to the
+man page. Note that \fBumount\fR does not pass this option to the
.BI /sbin/umount. type
helpers.
.TP