Today is "upgrade to Mountain Lion" day. First went my Mac Pro. All went well, except for my Apache config files getting hosed, Mercurial needing a re-install, and probably other issues I'll find out about as I go on. Next was my wife's MacBook Pro, which seems fine. Last was my MacBook Pro.
After installing, I got the following message box:
"transition is trying to modify the system network configuration. Type your password to allow this."
I hadn't encountered this on my first two installations, so I headed to google.ca to see what this meant. The only result that came up was this one. Google.com at least lists this Apple Support thread. "Better safe than sorry", I thought, so I hit "Cancel". Immediately up popped this dialogue box:
"transition is trying to modify your user account. Type your password to allow this."
I hit cancel for this one too. Once into my MacBook Pro, I ran a "sudo find / | grep transition". A bunch of stuff came up, but the only interesting entry was this one:
I headed over to my Mac Pro, already running Mountain Lion, on which I didn't receive these popups. I checked the directory, and the files on that computer too. I then decided to run it:
2012-07-27 13:51:32.895 transition[3583:707] INFO: Not signed into MobileMe, nothing to do.