Thunderbolt Software Update 1.2, προκαλεί προβλήματα εκκίνησης του Mac OS X

[gkontoletas]

Οι αναφορές μάλιστα αναφέρουν ότι μόνο με καθαρή εγκατάσταση του Mac OS X διορθώνονται όλα τα προβλήματα.

Apple yesterday released Thunderbolt Software Update 1.2, with the single comment that it “Adds support for the Apple Thunderbolt to Gigabit Ethernet Adapter.” Although it’s unclear if all Thunderbolt-equipped Macs are affected, a number of people have reported that installing the update causes a variety of strange boot-related problems (kernel panics, getting stuck at the gray boot screen, “Unexpected error” messages, and more). Regardless of the details, in each case, it seems that the Mac is rendered unusable, even thunderstruck. I’ve now heard from some people for whom the update did not cause any problems, but it’s still unclear what the difference may be between those who are and are not suffering boot failures.
In all the reports I’ve seen, reinstalling Lion fixes the problem. Boot into Recovery Mode by restarting while holding down Command-R. Once booted from Lion’s hidden Recovery HD volume, you can select Reinstall Mac OS X (if there is no Recovery HD volume, or it’s damaged, most Mac models introduced since 2010 support Lion Internet Recovery, which enables them to download a new Recovery HD image and boot from that). Of course, redownloading Lion from the Mac App Store will take quite some time, depending on the speed of your Internet connection. Once you have reinstalled Lion, you’ll need to run Software Update to bring everything up to date; don’t reinstall the Thunderbolt Software Update 1.2 again, or the problem will recur.

http://tidbits.com/article/13061
https://discussions.apple.com/message/18619247#18619247#18619247
https://discussions.apple.com/thread/4020288