The migration tool must mount the remote file systems of the source servers in order to obtain information about the source volumes and to copy the specified data to the target server.
For NetWare and OES migrations, the mls and migfiles uses nwmap command to map to the remote volumes and read data from the _admin volume to validate the source path. The mls and migfiles commands unmounts the file system upon termination. If a process is killed forcibly (kill -9), the mount point remains mounted and must be unmounted by the administrator.
The mls command uses nbackup tool to build the list of trustees.