Posted by (author unknown) at MacOSXHints.com
Apple released the Lion Recovery Update in October, 2011, and, after they updated the Lion recovery partition to 10.7.2, there was a great hint from Clay Caviness who dug into the update and highlighted the the relevant files and commands that it used to accomplish this update.
Recently, 10.7.3 came out, however, and the RecoveryHD partition is not updated if you use Software Update; it will stay at 10.7.2. This is probably not a big deal, as Apple didn’t deem it necessary to update, but for some users, this may not be good enough.
Note: Running the full 10.7.3 installer from the App Store will update the partition; this is fine for your home computer but not practical for large deployments.
Script Workflow:
Asks for locations of Recovery Update, Install OS X Lion.app, and destination
Expands …







