To switch the boot environment if the root disk is not encapsulated

1. Display the status of Live Upgrade boot environments.

   # lustatus
   
   Boot Environment  Is       Active Active    Can    Copy
   Name              Complete Now    On Reboot Delete Status
   ----------------  -------- ------ --------- ------ ------
   source.2657       yes      yes    yes       no     -   
   dest.2657         yes      no     no        yes    -     

   In this example, the primary boot disk is currently (source.2657). You want to activate the alternate boot disk (dest.2657)

2. Unmount any file systems that are mounted on the alternate root disk (dest.2657).

   # lufslist dest.2657 
   
                  boot environment name: dest.2657
   
   Filesystem        fstype device size  Mounted on Mount Options
   ----------------- ------ ------------ ---------- -------------
   /dev/dsk/c0t0d0s1 swap     4298342400 -          -
   /dev/dsk/c0t0d0s0 ufs     15729328128 /          -
   /dev/dsk/c0t0d0s5 ufs      8591474688 /var       -
   /dev/dsk/c0t0d0s3 ufs      5371625472 /vxfs      -

   # luumount dest.2657

3. Activate the Live Upgrade boot environment.

   # luactivate dest.2657

4. Reboot the system.

   # shutdown -g0 -i6 -y

   The system automatically selects the boot environment entry that was activated.

To switch the boot environment if the root disk is encapsulated

1. Display the current boot disk device and device aliases

   # eeprom
   boot-device=vx-rootdg vx-int_disk
   use-nvramrc?=true
   nvramrc=devalias vx-int_disk /pci@1c,600000/scsi@2/disk@0,0:a
   devalias vx-rootdg01 /pci@1c,600000/scsi@2/disk@1,0:a

2. Set the device from which to boot using the eeprom command. This example shows booting from the primary root disk.

   # eeprom boot-device=vx-rootdg01

3. Reboot the system.

   # shutdown -g0 -i6 -y