Alternate Boot Disks on SPARC Systems
The primary disk in a mirrored root pool is typically the default boot device. To boot from a different device, you must specify that disk when issuing the command to boot.
If you want to change the default boot device, first display the pool's configuration to select the device you want. Then, at the OK
prompt, update the system's PROM with the selected device. Boot the system and confirm that your selected device is the active boot device.
The following example assigns c1t1d0
as the default boot device.
$ zpool status pool: rpool state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM rpool ONLINE 0 0 0 mirror-0 ONLINE 0 0 0 c1t0d0 ONLINE 0 0 0 c1t1d0 ONLINE 0 0 0 ... ok boot /pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@2/disk@1
After the system is rebooted, you would confirm which active boot device is in the system.
$ prtconf -vp | grep bootpath
bootpath: '/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@2/disk@1,0:a'