OS Install - iMac (21.5in Mid 2010 11.2)

General system EndeavourOS installation
1

Hello again friends, today’s challenge is dual booting my iMac 2011 using EndeavorOS. This is because OS High Sierra and the computer itself is getting slow. It has a 3.06 GHz Intel Core i3 and an ATI RAdeon HD 4670 256 MB graphics card.

However, I have run into a few issues. The first is there are no tutorials or guides for installation of Arch or other Linux distro’s I can find on the web for this computer (I know it is old) and when I attempt to boot using Ventoy into EndeavorOS, I get a not a secure boot platform 14 error both from Ventoy and then from the ISO.

I haven’t found any information online on how to fix this error outside of the T2 silicon macbooks which have a setting for disabling secure boot. If anyone has either done this before or has a good idea on how to achieve a successful boot from Live USB that would be wonderful!

As a side note, I will be around all day and have tomorrow off work to mess with this machine and figure out a solution. Thank you all so much for your help, I cannot say I am particularly great at this. :slight_smile:

2

I run EOS on multiple ancient Apple hardware (iMac, MacbookPro, MacMini) and getting past Apple’s electric fences can indeed be tricky.

I focused on your specific error message…

And after googling this, I found this:

Which eventually led me to this as the solution apparently involves the use of:
https://unetbootin.github.io

Let us know if any of this proves to be of help in your efforts to load up EOS. :vulcan_salute:

3

Have you tried booting the ISO in grub2 mode in Ventoy? I get that message on my 08 MacBook (running Endeavour i3 rn)

4

I did yes! The screen flashes off and then on but nothing happens.

5

Hey friend, I saw this thread as well. Unfortunately, this did not work as a solution.

1 Like
6

I have a late 2014 MacMini. I was using it as a distro hopping device before I found EOS. Never had any issues. Booted ISO from thumb-drive and had no problems installing 6 or 7 previous distros, then I installed EOS. Process was no different than on my Laptop or any other PC.

7

Interesting. When I use Ventoy it detects it as an EFI device but then shows not a secure boot platform 14. When I boot straight from a formated ISO using Etcher, the drive doesn’t appear at all.

8

That’s what I used, Etcher. I used a wired Windows keyboard if that helps.

9

Open Core Legacy Patcher also works great if you’re keeping a mac OS partition

10

I’ll give that a look too. Thanks!