Make a nilfs2 checkpoint
mkcp [options] [device]
mkcp is a utility for making a checkpoint or snapshot for the NILFS2 file system found in device. When device is omitted, it tries to find a NILFS2 file system from /proc/mounts.
This command is valid only for mounted NILFS2 file systems, and will fail if the device has no active mounts.
Create a snapshot.
Print the checkpoint number when successfully created.
Display help message and exit.
Display version and exit.
mkcp is part of the nilfs-utils package and is available from http://nilfs.sourceforge.net.