By kemer on Apr 24, 2012
There are two kinds of sysadmin. One charges into the unknown, eager to try the latest-and-greatest, confident in his or her ability to fix whatever breaks. The other is cautious, dedicated to keeping the Enterprise running and probably aware that unplanned downtime can become one of those career-limiting events.
If you are the latter, you probably have a pile of valid reasons (polite version of "excuse") why you haven't upgraded from Oracle Solaris 10 to Oracle Solaris 11. But that pile is getting pretty small. One of the remaining challenges may be how to get from here to there with minimal downtime. Fortunately, Harold Shaw has written an article that takes fear, pain, and loathing out of that migration: How to Live Install from Oracle Solaris 10 to Oracle Solaris 11 11/11.
You'll notice that we are being very specific that this will get you to Oracle Solaris 11 11/11. In fact, there are a couple of very important caveats: not only is this how-to (currently) specific to a target OS of Oracle Solaris 11 11/11, Harold is careful to point that you can't create a golden image on one type of system, say a SPARC M-Series system from Oracle, and deploy it on a different system, such as a SPARC T-Series system from Oracle.
Harold's formula is very detailed and surprisingly concise. I'd say you are running out of excuses to not make that switch to Oracle Solaris 11.