Q: How do I disable FireWire in Mountain Lion? Where are my Mountain Lion FireWire kexts?
I just installed Mountain Lion and when starting up in verbose mode the output starts printing this in an endless loop:
ERROR: FireWire (OHCI) TI ID 8025 built-in: handleUnrecoverableErrorInt
I have had this error before, and I am aware that my FireWire port is fried. Ever since 10.5 I have resolved this problem by booting via Safe Mode and removing my firewire kernel extensions:
sudo mv /System/Library/Extensions/IOFireWire* /Users/karl/Desktop/
This does the trick. After that, I have no problems with my computer (other than never being able to use FireWire). I have to repeat this process every time I update or upgrade my OS. By doing this, I get a few more years out of a late 2007 MacBook Pro at the cost of not having FireWire. I'm OK with that.
But I just upgraded to Mountain Lion, am back in the startup hang, and I cannot find any FireWire kexts in the Extensions folder whatsoever. Where are they? Or does anyone know how to get rid of FireWire in Mountain Lion?
MacBook Pro (17-inch Early 2008), OS X Mountain Lion (10.8.2), 4 GB DDR2 SDRAM
Posted on Dec 25, 2012 6:24 PM