Tandy 6000 700-3039 XENIX Multi-User Operating System Core Upgrade v03.03.00 XNX330UP.IMD 3.3 Upgrade Disk 1 of 1 Single-Sided To upgrade a XENIX 3.2 system, run "install" as root. Notes: If you have the 3.0 Development System installed, you must upgrade it to the 3.2 Development System first. If you plan on using the 3.2 Development System, install the 3.3 upgrade AFTER you install the 3.2 Development system.