I'm trying to install Debian 9.5.0 netinst on a MacBook Pro (13-inch, 2018, Four Thunderbolt 3 Ports), but can't even boot the installer. I took the following steps:

  1. I made a live USB with Etcher of debian-9.5.0-amd64-netinst.iso following https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-macos
  2. I changed the secure boot settings in the Startup Security Utility to No Security https://support.apple.com/en-gb/HT208330
  3. I rebooted the laptop holding the ⌥ Option Key at startup
  4. I selected EFI boot option.

This is as far as I got as I got the message A software update is required to use this startup disk. This had an option to update which I did, I then reattempted step 3 and 4 and got the same message.

Does anyone know if it is even possible to install on this version of MacBook Pro?


I hate to be the one to break it to you (and I hope I'm wrong), but to my knowledge the new T2 chip causes a lot of issues. Looking at the DebainOn support page (this will tell you supported hardware), I don't see any versions aside from MacBook Pro 8,2 (yours would be 15,2 I would assume).

DebianOn: link

Macbook Pro Install Guide: link

Hopefully somebody responds and has a workaround, but as far as I can tell it doesn't appear to be possible "yet".


More evidence confirming my above statement:

Short answer - you can't run anything less than the version of macOS that came with the 2018 MBPs. You've got a new generation Intel processor, the new Intel support chip(s) for that new generation processor, and Apple's T2 chip in the 2018 MBP. macOS 10.13.3 is not going to have the required drivers to support all (or any) of those changes. - Posted: 7/26/18 at 9:04 AM by sdagley

^ The above statements were not from me and I have included the original poster's name. The link to his post is found here: link

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There may be two "EFI BOOT" partitions. Personally, using the first one may cause that problem. The second booted into

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