Solaris Live Upgrade (Examples)

This chapter provides examples of creating a boot environment, then upgrading and activating it by using either a character user interface (CUI) or a command-line interface (CLI). Examples of switching back to the original boot environment are also provided.

Example of Upgrading With Solaris Live Upgrade (Command-Line Interface)

In this example, a new boot environment is created by using the lucreate command on a system that is running the Solaris 2.6 release. The new boot environment is upgraded to the Solaris 9 release by using the luupgrade command. The upgraded boot environment is activated by using the luactivate command. An example of falling back to the original boot environment is also given.

Install Live Upgrade on the Active Boot Environment

1. Insert the Solaris 9 DVD or Solaris 9 Software 2 of 2 CD.

2. Follow the step for the media you are using.

   • If you are using the Solaris 9 DVD, change directories to the installer and run the installer.

     # cd /cdrom/cdrom0/Solaris_9/Tool/Installers # ./liveupgrade20

     The Solaris Web Start installer displays.

   • If you are using the Solaris 9 Software 2 of 2 CD, run the installer.

     % ./installer

     The Solaris Web Start installer displays.

3. From the Select Type of Install panel, click Custom.

4. On the Locale Selection panel, click the language to be installed.

5. Choose the software to install.

   • For DVD, on the Component Selection panel, click Next to install the packages.

   • For CD, On the Product Selection panel, click Default Install for Solaris Live Upgrade and click on the other software choices to deselect them.

6. Follow the directions on the Solaris Web Start installer panels to install the software.

Create a Boot Environment

The source boot environment is named c0t4d0s0 by using the -c option. Naming the source boot environment is required the first time Solaris Live Upgrade is used on the system to create a boot environment. Any subsequent boot environment creations do not require using the -c option.

The new boot environment is named c0t15d0s0. The -A option creates a description that is associated with the boot environment name.

The root (/) file system is copied to the new boot environment and a new swap slice is created rather than sharing the source boot environment's swap slice.

# lucreate -A 'BE_description' -c c0t4d0s0 -m /:/dev/dsk/c0t15d0s0:ufs \
-m -:/dev/dsk/c0t15d0s1:swap -n c0t15d0s0

Upgrade the Inactive Boot Environment

The inactive boot environment is named c0t15d0s0. The operating system image to be used for the upgrade is taken from the network.

# luupgrade -n c0t15d0s0 -u -s /net/ins3-svr/export/s9/combined.s9s_wos

Check If Boot Environment Is Bootable

The lustatus command reports if the boot environment creation is complete and if the boot environment is bootable.

# lustatus

BE_name                     Complete  Active  ActiveOnReboot  CopyStatus
------------------------------------------------------------------------
c0t4d0s0                    yes       yes     yes             -
c0t15d0s0                   yes       no      no              -

Activate the Inactive Boot Environment

The c0t15d0s0 boot environment is made bootable with the luactivate command. The system is then rebooted and c0t15d0s0 becomes the active boot environment. The c0t4d0s0 boot environment is now inactive.

# luactivate c0t15d0s0
# init 6

Fall Back to the Source Boot Environment

Three procedures for falling back depend on your new boot environment activation situation:

• The activation is successful, but you want to return to the original boot environment. See "To Fall Back Despite Successful Boot Environment Creation".

• The activation fails and you can boot back to the original boot environment. See "To Fall Back From a Failed Boot Environment Activation".

• The activation fails and you must boot back to the original boot environment by using media or a net installation image. See "To Fall Back to the Original Boot Environment by Using a DVD, CD, or Net Installation Image".

To Fall Back Despite Successful Boot Environment Creation

In this example, the original c0t4d0s0 boot environment is reinstated as the active boot environment although it activated successfully. The device name is first_disk.

# /usr/sbin/luactivate first_disk 
# init 6

To Fall Back From a Failed Boot Environment Activation

In this example, the new boot environment was not bootable. You must return to the OK prompt before booting from the original boot environment, c0t4d0s0, in single-user mode.

OK boot net -s
# /sbin/luactivate first_disk
Do you want to fallback to activate boot environment c0t4d0s0 
(yes or no)? yes
# init 6

The original boot environment, c0t4d0s0, becomes the active boot environment.

To Fall Back to the Original Boot Environment by Using a DVD, CD, or Net Installation Image

In this example the new boot environment was not bootable. You cannot boot from the original boot environment and must use media or a net installation image. The device is /dev/dsk/c0t4d0s0. The original boot environment, c0t4d0s0, becomes the active boot environment.

OK boot net -s
# fsck /dev/dsk/c0t4d0s0
# mount /dev/dsk/c0t4d0s0 /mnt 
# /mnt/sbin/luactivate
# umount /mnt 
# init 6