@JusGellin Can you set the computer up for legacy boot (BIOS)? I saw this problem with the HDD device/partition names before recently. Trouble with solid state hard drives and the naming convention.
Surprised we can't get KLV to boot. Perhaps experiment with turning off the EFI boot if it is at all possible. I will have to look at the problem and the machine your using for this a bit closer.
I think the problem is with the 512GB M.2 PCIe NVMe Solid State Drive and recognizing it. Somewhere on this forum this was discussed recently........
I am leaning towards the kernel modules are not loading or the kernel is not configured for NVMe usage as being a cause. More research is ongoing.....
UPDATE: some research led me to some info coming from some guys experiencing the same issues:
For anybody else who comes across this thread trying to solve Dell NVMe SSD issues as I did, I just wanted to add that I was able to solve the issue by switching the SATA Operation from "RAID" to "AHCI" in the BIOS. I did not want to disable the SATA bus altogether, as I have a couple non-RAIDed SATA drives plugged in.
I should also note this was on an Optiplex 7040 desktop tower, and also that I only ran into this issue when using UEFI boot mode. I did not have any issues with the BIOS in "Legacy boot" configuration.
Original post -> https://bbs.archlinux.org/viewtopic.php?id=204629
Another piece of info:
The fix for me was as follow:
Enable VDM in the bios
Enable CSM and allow legacy boot devices
Completely wipe the driver
Boot off the 21.1.5 image and then the drive was detected and allowed installation of manjaro.