Hello Ben. Thanks for your bug report.
On Mon, May 09, 2016 at 05:55:55PM +0100, Ben Hutchings wrote: [...] > In particular, this mount command now invokes util-linux's mount. That > refuses to perform a move if the source filesystem was not mounted from > a block device. There is no good reason for this and obviously it > works with busybox and klibc's implementations of mount. I mentioned this to Karel Zak (util-linux upstream maintainer) who said: the "mount -o move" has never been supported by util-linux He also mentioned the correct (for util-linux) syntax would be: mount --move .... Does that satisfy your needs? Regards, Andreas Henriksson