Explanation/Reference:
A: The - of the Active Column indicates that this boot environment is inactive, and hence not bootable.
Note: The values for the Active column are as follows:
R - Active on reboot.
N - Active now.
NR - Active now and active on reboot.
"-" - Inactive.
"!" - Unbootable boot environments in a non-global zone are represented by an exclamation point.
D: beadm create
Creates a new boot environment name, beName.
Note: beadm list
Lists information about the existing boot environment, which is beName, or lists information for all boot environments if beName is not provided.
Note: Using beadm Utility (Tasks)
You can use the beadm utility to create and manage snapshots and clones of your boot environments.
Note the following distinctions relevant to boot environment administration:
* A snapshot is a read-only image of a dataset or boot environment at a given point in time. A snapshot is not bootable.
* A boot environment is a bootable Oracle Solaris environment, consisting of a root dataset and, optionally, other datasets mounted underneath it. Exactly one boot environment can be active at a time.
* A clone of a boot environment is created by copying another boot environment. A clone is bootable.
Reference: Creating and Administering Oracle Solaris 11 Boot Environments