From: Karel Zak <kzak@redhat.com>
Date: Mon, 25 Feb 2013 10:17:27 +0000 (+0100)
Subject: umount: improve --recursive docs
X-Git-Tag: v2.23-rc1~198
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=fd2b0ce5d760e9ec2830f60842ed062ac0a5ba9a;p=thirdparty%2Futil-linux.git

umount: improve --recursive docs

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

diff --git a/sys-utils/umount.8 b/sys-utils/umount.8
index b8d4358767..e49b59e67f 100644
--- a/sys-utils/umount.8
+++ b/sys-utils/umount.8
@@ -111,7 +111,10 @@ to specify options for which no action should be taken.
 .TP
 \fB\-R\fR, \fB\-\-recursive\fR
 Recursively unmount each directory specified. Recursion for each directory will
-stop if any unmount operation in the chain fails for any reason.
+stop if any unmount operation in the chain fails for any reason. The relationship
+between mountpoints is determined by /proc/self/mountinfo entries. The filesystem
+must be specified by mountpoint path, recursive unmount by device name (or UUID)
+is unsupported.
 .TP
 \fB\-r\fR, \fB\-\-read\-only\fR
 In case unmounting fails, try to remount read-only.