x86: To Activate a Boot Environment With the GRUB Menu (Command-Line Interface)

You can switch between two boot environments with the GRUB menu. Note the following limitations:

• The first activation of a boot environment must be done with the luactivate command or the Activate menu. After the initial activation, the boot environment is displayed on the GRUB menu. The boot environment can then be booted from the GRUB menu.

• Caution - Switching to a boot environment with the GRUB menu bypasses synchronization. For more information about synchronizing files, see link Forcing a Synchronization Between Boot Environments.

• If a boot environment was created with the Solaris 8, 9, or 10 3/05 release, the boot environment must always be activated with the luactivate command or the Activate menu. These older boot environments are not displayed on the GRUB menu.

Steps

1. Become superuser or assume an equivalent role.

   Roles contain authorizations and privileged commands. For more information about roles, see Configuring RBAC (Task Map) in System Administration Guide: Security Services.

2. Reboot the system.

   # init 6

   The GRUB main menu is displayed. The two operating systems are listed, Solaris and second_disk, which is a Solaris Live Upgrade boot environment. The failsafe entries are for recovery, if for some reason the primary OS does not boot.

   GNU GRUB version 0.95 (616K lower / 4127168K upper memory) +-------------------------------------------------------------------+ |Solaris | |Solaris failsafe | |second_disk | |second_disk failsafe | +-------------------------------------------------------------------+ Use the ^ and v keys to select which entry is highlighted. Press enter to boot the selected OS, 'e' to edit the commands before booting, or 'c' for a command-line.

3. To activate a boot environment, use the arrow key to select the desired boot environment and press Return.

   The selected boot environment is booted and becomes the active boot environment.