It happened on my mid iMac 2011. After the thunderbolt update, it said the system could not apply update and it went into kernel panic mode. You'll have to enter Lion Recovery to reinstall Lion. Luckily, I have a time machine and just reloaded over night.
As of this morning, the update was still listed.
https://discussions.apple.com/thread/4020399?start=0&tstart=0
Edit - The update adds Thunderbolt to Ethernet functionality.
http://support.apple.com/kb/DL1544
As of this morning, the update was still listed.
https://discussions.apple.com/thread/4020399?start=0&tstart=0
Edit - The update adds Thunderbolt to Ethernet functionality.
http://support.apple.com/kb/DL1544
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