Re:Solaris Zones vs User Mode Linux (Score 1)

You don't know what you are talking about when discussing Solaris Zones. You are specualting.

It is not a complete OS; only the necessities to make a zone work. Where directories can be read only they are simply linked to the original OS's directory. So, if you share /opt from the Global Zone to a zone you then can install something once and it will be there for the zone to use, as well. Or, similar to BSD Jails, if the zone must maitain it or change it, you copy it to the zone's file structure, for example, /export/rootzones/myzone1/usr/lib. However, Solaris Zones are more secure and take less overhead.

And, if you looked up Live Upgrade or lucreate instead of LiveUpdate you might find some docs at http://docs.sun.com.