beadm in solaris 11

If you want to create a backup of an existing boot environment, for example, prior to modifying the original boot environment, you can use the beadm command to create and mount a new boot environment that is a clone of your active boot environment.

Create the boot environment.

root@solaris:/etc/security# beadm create mybe

List the available  boot environments

root@solaris:/etc/security# beadm list
BE               Active Mountpoint Space  Policy Created
--               ------ ---------- -----  ------ -------
mybe             -      -          86.0K  static 2013-07-22 19:04
solaris          NR     /          8.36G  static 2013-07-18 12:08
solaris-backup-1 -      -          251.0K static 2013-07-19 19:19
solaris-backup-2 -      -          248.0K static 2013-07-19 19:25

Activate the boot environment.

root@solaris:/etc/security# beadm activate mybe
root@solaris:/etc/security# beadm list
BE               Active Mountpoint Space  Policy Created
--               ------ ---------- -----  ------ -------
mybe             R      -          8.36G  static 2013-07-22 19:04
solaris          N      /          595.0K static 2013-07-18 12:08
solaris-backup-1 -      -          251.0K static 2013-07-19 19:19
solaris-backup-2 -      -          248.0K static 2013-07-19 19:25

Use the beadm mount command to mount the new boot environment.

root@solaris:/etc/security# beadm mount mybe /a

Boot the server using boot environments from ok prompt

ok boot -L

To boot a specified entry, type the number of the entry and press Return:
Select environment to boot: [1 - 2]:

boot -Z rpool/ROOT/mybe

To display the boot path for the active BE, type:

prtconf -vp | grep bootpath