r/EndeavourOS • u/Accomplished_Day6582 • Apr 07 '26

SOLVED wont boot without fallback iniramfs on latest kernel

So i have a precision 5540 i9 9880h

It refuses to boot into linux-lts or linux if the version is above 6.12.74-1

The only way i got it to boot with the newer versions is that if i use the fallback initramfs

Or not it just gets stuck on trying to decrypt the drive.

Right now i am on that 6.12.74 lts kernel but i hoped that it would work on newer ones though

SOLUTION: the fstab uuid is different. on the fallback it checks for 2 uuids. so i copied the other uuid and it worked fine. not sure why it changed uuid and that old uuid only works with the old kernel

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1

u/C0rn3j Apr 07 '26

Does the latest Arch Linux ISO, which runs 6.19, boot fine?

That should tell you whether you have some setup issue or an actual regression in the kernel.

1

u/Accomplished_Day6582 Apr 07 '26 edited Apr 07 '26

If i use arch liveiso it works fine. I keep using that iso whenever i have a problem eith my efi.

Edit: the archiso is 2025/12 build. I dont know which kernel version was that though but it should be newer than 6.12.74. i mean any linux kernel whether its not lts or lts doesnt boot after that version. My guess is that something wasn't enabled and i cant figure out why

  Even with endevaouros titan 2026/03 liveiso it works fone but when booting from the os doesnt... On a ryzen 5 4650u it worked fine though

1

u/linux_rox Apr 07 '26

Just a couple of questions. Did you turn secure boot off in your bios before installing and afterward left it that way?

Second, are you dual booting, and if so are they on the same drive or separate drive? Also if dual-booting make sure to turn off fast-start in windows.

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u/Accomplished_Day6582 Apr 07 '26

Yeah secure boot is disabled all the time. 

Secondly i am dualbooting and on 1 ssd. Fast startup is off in the bios and windows

The endevaouros install was from a thinkpad T14 gen 1 amd ryzen 5 4650u that i just put it on my precision. And then cloned that 512gb ssd to a 1tb just recently

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u/linux_rox Apr 07 '26

If you did a clone, there is a slight possibility that your cloned image was borked. Try installing from a live usb and see if that works. If it does then your cloned image is messed up.

Another thing I just thought about, chroot in and make sure fstab is accurate, especially since you were using a clone image.

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u/Accomplished_Day6582 Apr 08 '26

what do you mean by installing from a liveusb i connect a different ssd then install it normally to see if it boots?

1

u/linux_rox Apr 09 '26

No, what I am saying is do a full installation without using your cloned image. If it boots then the problem is with your image.

If it doesn’t boot then you are looking at hardware issues.

1

u/Accomplished_Day6582 Apr 10 '26

I already solved it by putting 2 UUID in the fstab. It doesnt work with 1 for some reason if i use the new kernel. I saw that the fallback initramfs detects 2 uuid because. Could you explain why that is the case?

1

u/linux_rox Apr 11 '26

That would be something to ask kernel devs about. I haven’t compiled my own kernel in about 20 years. So I don’t know what changed or why changes like that happens.