This disk is a "bare bones" GS/OS system disk 5.0, with a minimum of drivers, etc. It is intended to be bootable, but that's about all. It does not include most drivers, AppleTalk, CDEVs or CDRom files, nor the Installer system. To take full advantage of GS/OS, you should obtain the two-disk System.Disk 5.0 (or higher) from your friendly neighborhood Apple dealer or Apple user group.