SPARC: How to Find the PROM Revision for a System

Display a system's PROM revision level with the banner command.

ok banner
Sun Ultra 5/10 UPA/PCI (UltraSPARC-IIi 333MHz), No Keyboard
OpenBoot 3.15, 128 MB memory installed, Serial #number.
Ethernet address number, Host ID: number.

Hardware configuration information, including the revision number of the PROM, is displayed. In this example, the PROM revision number is 3.15.