iMac frozen to death

[Racineur]

Hello friends. My old 2012 i5 1T Fusion Drive 24 ram shows this message now. Tried all I know and it just wouldn’t boot. Not even from an external SSD (no way to bypass this message). iMac had received patches to boot with Monterey btw. On last boot, the screen was very dimmed (keyboard keys stopped to work) and the windows couldn’t redraw well. That is in a chunky and fuzzy way. What is this grub message? iMac became slow and non responsive and dim 4 days ago. The Fusion Drive? Monterey? If the FD, is it worth replacing it with an SSD?
Thanks for your help. A bit discouraged.🫤

 

[iMac2019]

Hi,
That's an old thread but I'm sure you could find some useful information to help you find a solution to this problem.

[SOLVED] Mac can only boot broken GRUB

You read the title, when booting I can only acces a broken GRUB and this is how I might have done it wrong. I installed Ubuntu the first time using dual-booting which I think is the worst way since it could be done better by using a Virtual Machine such as Parralels or VMware. Well later I...

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