klibc mount has only short options thus uses the following syntax
to move a mounted tree:
mount -o move /sys /root/sys
this generates the following error on util-linux-ng mount:
mount: you must specify the filesystem type
belows patch is enough to add an alternative to
mount --move /olddir /newdir
Reported-by: Michael Prokop <mika@xxxxxxxx>
Signed-off-by: maximilian attems <max@xxxxxxx>
diff --git a/mount/mount.c b/mount/mount.c
index 30688ac..7e41fdf 100644
--- a/mount/mount.c
+++ b/mount/mount.c
@@ -135,6 +135,7 @@ static const struct opt_map opt_map[] = {
{ "remount", 0, 0, MS_REMOUNT}, /* Alter flags of mounted FS */
{ "bind", 0, 0, MS_BIND }, /* Remount part of tree elsewhere */
{ "rbind", 0, 0, MS_BIND|MS_REC }, /* Idem, plus mounted subtrees */
+ { "move", 0, 0, MS_MOVE }, /* Move mounted tree elsewhere */
{ "auto", 0, 1, MS_NOAUTO }, /* Can be mounted using -a */
{ "noauto", 0, 0, MS_NOAUTO }, /* Can only be mounted explicitly */
{ "users", 0, 0, MS_USERS }, /* Allow ordinary user to mount */
--
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