As the title says, I have an MacBook Air (Late 2010 – MC505LL/A*), with preinstalled OSX Lion. Also it shipped with an USB key called "Recovery Key", and afaik, I'm supposed to use this key if I restore/format my Mac
The problem is that I can't find the USB key, and I'd like to know if I can do a fresh install of Lion without it. I have an ISO image of Lion (to use with an external reader)… and I've read that there's an Internet process, where I can press CMD + R while booting, to perform a fresh install with a internet downloaded image, but it's not avalaible on all models.
Will this work ? I'll try it this weekend, but I'd like to know if anyone has experience in something like this.
Thank you all !
Best Answer
Using ISO
If you restore the ISO to a flash drive or other drive partition, you could ⌥ alt-boot from it and erase & install OS X.
In my example I selected a random DMG, however in your case you would use the ISO image as the Source.
Internet Recovery
Yes, but only if you install the Internet Recovery firmware update for your MacBook Air.
Once you have, hold ⌘ cmd + ⌥ alt + R on boot to begin.
An image of OS X will be downloaded from the internet, and can be installed normally.