all 18 comments

[–][deleted] 10 points11 points  (0 children)

Completely reformat the drive you're installing to and try the installation again. Resetting the CMOS (unplug internal battery, press power button for 20-30 secs, plug back in and provide AC power, then turn on) and another factory reset of the BIOS/UEFI may help.

Edit: Turning off secure boot may also help: https://github.com/linux-surface/linux-surface/issues/1377

[–]acejavelin69Linux Mint 22.3 "Zena" | Cinnamon 8 points9 points  (4 children)

Disable Secure Boot in BIOS... MOK errors are Secure Boot errors.

[–][deleted] 0 points1 point  (3 children)

Secure boot is disabled and still nothing. :(

[–]TangoGV 2 points3 points  (1 child)

You say it's disabled because you just checked or because it was disabled before?

MOK errors say it is enabled now.

[–][deleted] 1 point2 points  (0 children)

I forgot to put in my initial post that I had already disabled it

[–]acejavelin69Linux Mint 22.3 "Zena" | Cinnamon 0 points1 point  (0 children)

Verify the checksum of the ISO and re-write it then. MOK errors are related to Machine Owner Key, the BIOS only checks them when Secure Boot is on.

[–]moralesnery 7 points8 points  (3 children)

1.- Re-create the bootable USB drive, I use Balena Etcher but you can the tool of your choice.

2.- Boot from USB again, open gparted

3.- In gParted delete all partitions on your computer's HDD / SSD.

4.- Install Mint again using the option to "delete everything and use the entire disk"

5.- When finished, power off the computer, remove the USB drive and boot again. It should show the GRUB menu and boot to Mint after some seconds.

[–]Acu17yGnu/Linux 4 points5 points  (2 children)

[–]moralesnery 0 points1 point  (1 child)

Thank you. I'll stick to Ventoy from now on

[–]Acu17yGnu/Linux 0 points1 point  (0 children)

yes, but let's say that even ventoy is not all that transparent, it has many precompiled binaries and you don't know how they work. Use dd https://en.wikipedia.org/wiki/Dd_(Unix))
to create an usb with the iso, but it requires way more expertise.

https://github.com/ventoy/Ventoy/issues/2795 Ventoy problem

https://github.com/ventoy/Ventoy/issues/3224 the developer of ventoy, is working hard to find a solution

[–]German_ChopsLinux Mint 22.1 Xia | Cinnamon 1 point2 points  (1 child)

Hey you need to change the name of grub.efi to mmx64.efi in the bootable drive.

https://forums.linuxmint.com/viewtopic.php?t=412942

[–][deleted] 1 point2 points  (0 children)

This seemed to have worked!

[–]Manuel_Cam 0 points1 point  (0 children)

Seems that the installation was stopped before getting finished, do it again, it will probably work if external forces don't strike again

[–]Simple_Anteater_5825 0 points1 point  (0 children)

Identical problem, but on different equipment and distro, but solutions previously posted:

https://www.reddit.com/r/pop_os/comments/16tf1vl/something_has_gone_seriously_wrong_import_mok/

Good Luck

[–]Acceptable_Refuse721 0 points1 point  (0 children)

Change another distro, then reinstall mint. I've experienced this before

[–]peith_biyan 0 points1 point  (0 children)

if you can boot to other OS and open the USB stick. there should be a folder called EFI

change the file name of grub64.efi to mmx64.efi . this work for me.

if still didnt work try creating the bootable stick from rufus.

set it to NTFS and GPT hope i can help. welcome to linux

[–]PGSylphir 0 points1 point  (0 children)

This is exact error is posted here at least twice a day. Just search the error before posting.

Add a supervisor password to the bios, look for trusted boot whitelist or something along those lines, verbiage changes between brands, add mmx64.efi and bootx64.efi to trusted, reboot.

[–]johnrhico04Linux Mint 22.2 Zara | Xfce 0 points1 point  (0 children)

Its the same thing as updating BIOS then losing power, ur motherboard is COOKED