BootPROM device aliases simplify life when booting a SPARC-based Solaris system. If changes to the system invalidate a device alias, leaving it may complicate matters during panic times when things need to be clear. This tech-recipe describes deleting a device alias with nvunalias.
To delete the device alias oldboot, use the following command from the BootPROM (ok prompt):
The only reference needed by nvunalias is the alias, not the device path.