Northern Telecom NAC Installation Manual page 294

9-2 Platform upgrades
Platform upgrade from a NAC 1 system to a NAC 2
system
553-4011-110 Standard 1.0 November 1994
Use Procedure 9-1 if you are upgrading your NAC 1 system to a NAC 2
system. After the system reboot following the operating system and
application tape installation, you can follow one of two paths in this
procedure.
Note: In all procedures, the keys {RETURN} and {ENTER} are
interchangeable.
If you do not have a backup tape or do not want to install your backup data
onto the new system, you can switch the installation upgrade to a new
installation. This alteration allows you to skip over the steps where the
backup data tape is inserted and loaded onto the system.
If you want to load your backup data, continue the installation as an
installation upgrade and follow the screen prompts and messages to load
the backup tape.
To perform the following procedure, you need the NAC 2 application tape
and the generic operating system tape, as well as a backup tape from your
NAC 1 system database if needed.