Thunderbolt Software Update 1.2 causing boot failures for some

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A recent software update for Thunderbolt supported Macs was pushed out alongside many other updates that went out yesterday. But, unlike the others, you should avoid this one. Many of the users that have installed the update are reporting that it is causing boot failures and kernel panics. Apple’s release notes state the update “Adds support for the Apple Thunderbolt to Gigabit Ethernet Adapter.” However, it also adds a number of issues. Many users are reporting boot failures, kernel panics, and “unexpected error” message. So far, the only way they have been able to fix them, is completely reinstalling OS X.

On the other hand, some people are not experiencing issues. But so far it hasn’t been contained to any specific model of Mac, and no real pattern has been established. If you are one of the users experiencing issues, TidBits reminds you that you can enter Lion’s Recovery Mode by holding down Command+R when first booting up your computer. If your Mac does not have a recovery partition or yours is damaged, your Mac should automatically enter Lion Internet Recovery, which will download the system again for you to install.

Have any of you experienced this issue? If so how did you go about fixing it? Let us know in the comments.


Via: TidBits
Image: Cult of Mac

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  • James Charley

    I installed the Thunderbolt Software Update 1.2 today while I was at school, and my MacBook Pro booted up just fine.  (Note: I’m not using any of the new MacBook Pros, I am currently using the MacBook Pro prior to the 2012 MacBook Pros)