Does it make any difference as to where or what kind of fs that the zoneroot
is mounted? and is there any difference with a whole root zone?
The situation is the same for both sparse and whole-root zones.
The key is whether or not the file system is "available" under the
miniroot since the upgrade takes place there. If the system is able to
mount the file system from the miniroot, then upgrading zones hosted on
that file system should be fine.
zones-discuss mailing list