The zoneadm boot subcommand provides two options that allow the global zone administrator to manually boot a read-only zone with either a writable root file system or with a transient writable root file system. Note that the zone will be in writable mode only until the next reboot occurs.
Manually boot the zone with a writable root file system.
Manually boot the zone with a transient writable root file system. The system is rebooted automatically when the self-assembly-complete milestone is reached.
The reboot places the zone under control of the MWAC policy again. This option is permitted when the zone has an MWAC policy of none.
Both the –W and –w options are ignored for zones that are not Immutable Zones.