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Thunderbolt Software Update 1.2 causing serious issues

updated 03:48 pm EDT, Tue June 12, 2012

May render some Macs temporarily unusable

Some people are experiencing serious errors with Thunderbolt Software Update 1.2, released yesterday, according to reports. Affected users will see any number of issues when booting a Mac, ranging from "unexpected error" messages to kernel panics or becoming stuck at the gray boot screen. The only solution so far is believed to be reinstalling OS X Lion, or simply avoiding installing the update in the place.

The patch adds support for the Thunderbolt-to-Gigabit Ethernet adapter, and is not essential for most Mac owners. The adapter is in fact only really meant for Thunderbolt-equipped MacBook Pros and MacBook Airs, rather than the iMac or the Mac mini.

by MacNN Staff



  1. dvh

    Joined: Dec 1969


    Yes - major problems

    Many people are having problems. Installing all the 6/11 updates trashed the Lion install on my MacBook Pro. (mid-2011 i7)
    Kernel panic on reboot. Suspicion is that it's the Thunderbolt update.
    Check out threads on Apple discussion support Forums:

    Had to reinstall Lion. Surprised there's not more "noise" about this and that Apple hasn't pulled the update...

  1. syzygi

    Joined: Dec 1969


    No problem MBP 2011

    I have my computer set up to boot up in Verbose mode. I installed the wi-fi update before the Thunderbolt update. Then I rebooted. I got the usual verbose text scrolling across my screen, then the brief Thunderbolt update started. It ended with several error messages not recognizing disks. Then I got a few screen fulls of other disk related information and errors. After about a minute I got the grey Apple logo screen and it continued booting as usual.

  1. rcoledude

    Joined: Dec 1969


    YES happened to me

    as well when running the software update on my 2011 iMac (27 in SSD). Received an error during the installation process that "none of the applications were installed due to an error". no further explanation. reboot generated kernel panic. I could only boot in target mode connected to another machine and re-installed Lion from a USB. Disk utilities couldn't fix the problem. I re-ran the software update a second time to install all of the Lion updates and it worked fine this time.

  1. mbanks

    Joined: Dec 1969


    comment title

    It happened to me too.

    The update has been pulled though.

  1. Flying Meat

    Joined: Dec 1969


    You can install the 10.7.4

    combo update to recover partially from this. Reinstall all remaining updates and you should be back to normal. A bit faster than an OS reinstall.
    This info gleaned from the Apple Discussions page:

  1. jonbwfc1

    Joined: Dec 1969


    Happened to me

    Ran the update and I got an unusual error dialog saying something like 'not all updates can be installed [restart]'. SO I click the button and nothing happens. I'm left with an entirely grey 'cloth' screen. After about 15 minutes waiting i decide it's not coming back and power cycle.

    Immediately on boot it kernal panics. By the looks of the error, the update had linked in a KEXT in that it hadn't/couldn't copy into place, so the whole thing was falling over. tried a few things, no luck. In the end the only solution was to boot to the recovery partition and recover from a time machine backup.

    Then mark the update as hidden.

    Bad this is happening at all, but good to know it wasn't something I did :).

  1. testudo

    Joined: Dec 1969



    All these postings of people with problems are obvious trolls, trying to get others into thinking apple pushed out a bad update or something.

    Ha! Nice try, guys. But us Mac people know better. If it didn't work for you, it was probably because you tinkered with your system before running it.

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