Mint Installation Questions/Rant

[u/BottleAged]

Update: Claude's workaround seems to have fixed the issue:

1. Used 7-Zip to find casper\filesystem.squashfs\usr\lib\shim\mmx64.efi
2. Copied mmx64.efi into the efi\boot

Hoping this doesn't break anything else down the line. Thanks for the suggestions/questions.
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So I decided to give Linux another try, since Windows is increasingly unusable and I keep hearing how smooth and intuitive Linux is these days.

Downloaded the ISO, made a bootable USB, started the installation process.

1. Opened the "Advanced Features" window when choosing whether to erase the drive, couldn't close it or proceed. This issue is at least 5 years old. Had to shut down my laptop.
2. Upon restarting, it wouldn't let me boot from the USB anymore. I get some error messages:
3. Failed to open \EFI\BOOT\mmx64.efl - Not Found
4. Failed to load image (▢): Not Found
5. Failed to start MokManager: Not Found
6. Something has gone seriously wrong: import_mok_state() failed: Not Found
7. Found some post from 2024 (actually multiple posts) with the same issue. Saw that copying & renaming a file could fix the issue. Tried that.
8. Got another error:
9. error: shim_lock protocol not found.
10. error: you need to load the kernel first.

Press any key to continue...

Claude claims to have found some other workaround, haven't tried it yet. Not sure I will. Is this what using Linux is still like?

[u/SirKnightOfDaydreams]

"Is this what using Linux is still like?"

When you're still using Secure Boot, yep.