Did this, said the operation was completed successfully but with no luck. I just nuked the whole drive now and trying to do an install to it like that.
Update, that did absolutely nothing, even by erasing the while drive with calamares and letting it auto-partition EOS still won’t boot.
I also just updated my bios, thinking it was an issue with it but to no avail. I also re-disabled everything related to fast boot and secure boot.
I also tried with an older version of EndeavourOS and Manjaro and the same issue. Something’s definitely wrong with my computer and I don’t understand what.
This problem and the solution are both inside the BIOS firmware.
From a quick look into the Manual, this might possibly happen only when FastBoot is enabled, which you are very sure is disabled BEFORE booting to the installer ISO.
Then, here is one more ghosts in the PC case . Noted!
Last idea is to confirm TPM is disabled.
AMD CPU fTPM
Enables or disables the TPM 2.0 function integrated in the AMD CPU. (Default: Disabled) Trusted Computing
Enables or disables Trusted Platform Module (TPM).
Also,
this should not happen. IMHO, since we don’t know how the UEFI firmware works (not Open Source), it is an unwanted behavior, potentially related to the issue.
How do you reboot after installation? From the installer, or from the OS?
Maybe try Shutdown.
Trusted Platform Module is also disabled. I double checked everything to make sure they are off. Secure Boot, Fast Boot, TPM, CSM are all off.
All my reboots have been by checking the reboot button in calamares and clicking it next. I will try to do an install with shutdown and I’ll re-check everything again to be off.
Sooo, I somehow managed to fix it, but I still don’t really get what was wrong. So I guess it is obvious now that this is definitely not a software issue but a hardware one.
What I ended up doing was unplugging both the SSDs and swapping the cables between them (Only on the SSD side, not on the motherboard side) and surprise surprise, I was greeted by GRUB on boot.
In the BIOS, the boot options only showed GRUB and Windows Boot Manager was missing, but I was able to boot into windows via grub.
Now, where the strange thing happens: I switched the cables again, like they were previously and now both Windows Boot Manager & GRUB show up as boot options. I have no idea what happened, why it didn’t work and why it works now.
. Noted! 