Solaris Live Upgrade support on systems with the zonepath on ZFS starts with this release. For a zone with the zonepath on ZFS, only Solaris Live Upgrade can be used to upgrade the system.
You can use the Solaris Live Upgrade feature to migrate your zones to a ZFS root file system. A zone in a non-shared file system is automatically migrated when the UFS root file system is migrated to a ZFS root file system. If the zone is in a shared UFS file system, then you must upgrade the zone as in previous Solaris releases. For more information, see Migrating a UFS Root File System to a ZFS Root File System (Oracle Solaris Live Upgrade) in Oracle Solaris ZFS Administration Guide.