Comment by markmark

Erg, I ran into this on my mac twice when I upgraded. I have two bootable OSX partitions and it hit on both upgrades. I'm not really a mac guy and it took a _lot_ of messing around (and learning that DFU exists and what it does) to sort out. Just lucky that my daughter has a mac so that I could even use DFU without having to take the thing into an apple store.