Bring the system to the ok PROM prompt.
For more information, see How to Shut Down a Stand-Alone System.
Use the printenv command to determine the default boot device.
ok printenv boot-device
Identifies the parameter for setting the device from which to boot.
Identifies the boot-device value such as a disk or the network. The n can be specified as the disk number.
The default boot-device is displayed in a format that is similar to the following:
boot-device = /pci@1f,4000/scsi@3/disk@1,0:a
If the default boot-device is a network boot device, the output is similar to the following:
boot-device = /sbus@1f,0/SUNW,fas@e,8800000/sd@a,0:a \ /sbus@1f,0/SUNW,fas@e,8800000/sd@0,0:a disk net