If you’ve used the zone migration features (e.g., attach and detach) in Solaris, you may have bumped into issues when you tried to migrate a zone from one machine to another, and the servers didn’t have the same set of patches or packages installed. With Jerry’s putback of PSARC 2007/621 into opensolaris, this should be a thing of the past. Here are the bugs that were addressed by PSARC 2007/621:
PSARC 2007/621 zone update on attach
6480464 RFE: zoneadm attach should patch/update the zone to the new hosts level
6576592 RFE: zoneadm detach/attach should work between sun4u and sun4v architecture
6637869 zone attach doesn’t handle obsolete patches correctly
Thanks Jerry for this super super useful feature!