I got this fixed by resetting the NVRAM/PRAM and booted into ElementaryOS. Mac Pro (Mid 2006) Apple introduced the Mac Pro as a fully customizable quad-core. PS: This issue happened after another issue I had, the computer would turn on, with the chime, but the screen stays grey. CPU UPGRADE KIT for 2006 Apple Mac Pro 1,1 A1186 Matched Pair Quad. I really think this is a hardware issue, but don't know how to fix it. I've removed the HDD and plugged it into my main Linux Desktop and, everything was fine (the linux partition and OS X partition were mounted successfully). I've also tried inserting the ORIGINAL RAM that came with this Mac, still, without success. I've tried Resetting the PRAM/NVRAM and SMC without success. I only have my main Linux Desktop and a Snow Leopard USB Installer.

OSes : Patched OS X El Capitan and ElementaryOS.

Model Identifier : MacBook2,1 (the Late 2006 one, not Mid 2007).

GPU : Intel GMA950 (No GPU acceleration at all in my patched El Capitan install).

So here I am stuck, what do I do? I found some forums online on the topic but they require an optical drive, which I don't have.My Late 2006 MacBook (MACBOOK2,1) doesn't boot anymore after I turned it off in ElementaryOS. That said, expect to see old Macs used as Linux machines (ranging. So convert my usb to fat32 and boot ubuntu right? WRONG, uefi does not see the USB. Linux on MacBook Pro 2016 / 2017 Linux on MacBook Pro Late 2016 and Mid 2017 (with Touchbar) The only gotcha seems to be audio. So here I am, trying to get UBUNTU on my Mac. This is really unfortunate because the Macbook is still usable and actually pretty snappy (the core duo does a good job with light activities) so I don't want to give up on it just yet.

However, this macbook only supports OS X 10.7.11, which is so old Chrome and Firefox don't support it. I'm going to put an SSD and replace the optical drive with an HDD caddy. So I cleaned it up good with hydrogen peroxide, alcohol and such and made it look nice! It had 1/2 gb of DDR2 that I upgraded to its maximum 3gb ram. It's white, has yellow stains and looks like it was in a fire. So I work at ubreakifix, and my coworker brings an old Macbook 2006 a1181 and gives it to me.

Late 2006 macbook pro