From: Karel Zak <kzak@redhat.com>
Date: Mon, 14 Jun 2010 10:47:17 +0000 (+0200)
Subject: mount: add notes about -o remount,ro,bind to mount.8
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=67490655b4a8d7d3fb2e5a796676b5536ca2310c;p=util-linux

mount: add notes about -o remount,ro,bind to mount.8

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

diff --git a/mount/mount.8 b/mount/mount.8
index 093001b8..e9f29629 100644
--- a/mount/mount.8
+++ b/mount/mount.8
@@ -359,6 +359,21 @@ changed by a separate remount command, for example:
 .I newdir
 .RE
 
+Note that behavior of the remount operation depends on the /etc/mtab file. The
+first command stores the 'bind' flag to the /etc/mtab file and the second
+command reads the flag from the file.  If you have a system without the
+/etc/mtab file or if you explicitly define source and target for the remount
+command (then mount(8) does not read /etc/mtab), then you have to use bind flag
+(or option) for the remount command too. For example:
+
+.RS
+.br
+.B mount --bind
+.I olddir newdir
+.br
+.B mount -o remount,ro,bind
+.I olddir newdir
+.RE
 .RE
 
 .B The move operation.