mount-2.12r-alt6

Although documented in the manpage ("Since Linux 2.5.1 it is possible to atomically move a mounted tree  to  another  place."), "mount --move" doesn't work:

# mount --move /home/STORAGE-for-srv /srv
mount: wrong fs type, bad option, bad superblock on /home/STORAGE-for-srv,
       missing codepage or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

# 

Whereas "--bind" and "--rbind" work:

# mount --bind /home/STORAGE-for-srv /srv
# umount /srv
# mount --rbind /home/STORAGE-for-srv /srv


Also, "move" is not recognized in /etc/fstab; for example, with the following line:

/home/STORAGE-for-srv	/srv	none move,auto	0	0

the result is:

# mount /srv
mount: unknown filesystem type 'none'
# 

whereas "bind" works with a line like this:

/home/STORAGE-for-srv	/srv	none bind,auto	0	0

.


"mount --move" would be of some real use at least for the case when one doesn't want to create a loop through "mount --bind" like this:

# mount --bind /home/STORAGE-for-srv /srv
# mount --bind /home /srv/ftp/home