even if permission checking is disabled, it will not work, because
	vgactl does not exist in /dev, because '#v' has not been bound there,
	so your >/dev/vgactl is attempting to create it,
	which fails (because `mounted directory forbids creation', which means
	it was mounted or bound without -c or MCREATE),
which probably means you need
	bind -a '#v' /dev
first, or you can use >'#v/vgactl'