If you are upgrading Solaris, you will see a bunch of patch numbers fly by along with a bunch of return codes. When I first saw the return codes, I was concerned that something was not updating properly. I saw lots of Return Code 2 and Return Code 8.

When I checked out what the error codes represent, I was relieved. Code 2 is for a patch that is already applied. Code 8 is when a patch attempts to modify a package that is not installed.