Imported from util-linux-2.12o tarball.

1 files changed, 4 insertions, 1 deletions

diff --git a/mount/umount.c b/mount/umount.c
index 15d94f93..b26c28d4 100644
--- a/mount/umount.c
+++ b/mount/umount.c
@@ -571,7 +571,10 @@ umount_file (char *arg) {
 			die(2,
 			    _("umount: %s is not mounted (according to mtab)"),
 			    file);
-		if (!is_mounted_once(file))
+		/* The 2.4 kernel will generally refuse to mount the same
+		   filesystem on the same mount point, but will accept NFS.
+		   So, unmounting must be possible. */
+		if (!is_mounted_once(file) && strcmp(mc->m.mnt_type,"nfs"))
 			die(2,
 			    _("umount: it seems %s is mounted multiple times"),
 			    file);