$cpio -idmv < /dev/rfd0

This copies the files previously saved onto the /dev/rfd0 file by the cpio command back into the file system (specify the -i flag). The d flag allows the cpio command to create the appropriate directories if a directory tree is saved. The m flag maintains the last modification time in effect when the files are saved. The v flag causes the cpio command to display the name of each file as it is copied.