usage: /usr/bin/mount.ceph [src] [mount-point] [-n] [-v] [-o ceph-options]
options:
	-h, --help	Print this help
	-n, --no-mtab	Do not update /etc/mtab
	-v, --verbose	Verbose
	-f, --fake	Fake mount, do not actually mount
ceph-options: refer to mount.ceph(8)