Arch Linux

Nanupi

Member

Registered: 2025-05-16

Posts: 4

[Fixed]Bootloader cannot find OS after update

Hez guys, my bootloader cannot find my OS after i did an update out of the sleeping mode.
I did an update with yay -Suy --noconfirm after i waked up the computer out of sleeping mode.
The first issue i faced was that i had to unmute my soundcard again manually in terminal via alsamixer, so i restardet it.
It went on and went into the GRUB loader, but the loader could not find any os.
So it redirectet me into UEFI

So i put in EndeavorOS USB stick to boot from it.
I allready chrooted into my nvme and run again an update.
Now i have no clue left about what to do to fix it.

last time i faced this problem was about 8 month ago. I could blame a bug in the linux headers,but now i am not sure anymore of how to prevent it and even more important how to fix it.

Last edited by Nanupi (2026-03-15 15:43:47)

5hridhyan

Member

From: Asia

Registered: 2025-12-25

Posts: 564

Re: [Fixed]Bootloader cannot find OS after update

So i put in EndeavorOS USB stick to boot from it.
I allready chrooted into my nvme and run again an update.
Now i have no clue left about what to do to fix it.

try re-installing Grub/Linux and it's headers too, re-generate grub, and you should be able to boot....

Edit:
https://wiki.archlinux.org/title/GRUB#UEFI_systems

Last edited by 5hridhyan (2026-03-15 14:31:11)

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Nanupi

Member

Registered: 2025-05-16

Posts: 4

Re: [Fixed]Bootloader cannot find OS after update

Ok, thanks for the advice. It did work well.

So, my next question is, why did it happend and how can i prevent it beside from not updating while comming out of sleeping mode.
I mean, there must be something off

5hridhyan

Member

From: Asia

Registered: 2025-12-25

Posts: 564

Re: [Fixed]Bootloader cannot find OS after update

"sleeping mode" suspend/resume?
it is unlikely that it is the cause of that issue, since we don't know what was updating/and what failed etc etc (you didn't post any logs on what was updating/ what failed), we don't know the actual cause

i prevent it beside from not updating while comming out of sleeping mode.

if you are the only user of that machine, then don't update it after "coming out of sleep mode" again, as said above, suspend/resume has ntg to do with the update/missing OS

and I don't think there is smtg off...
anyways, glad you were able to fix your issue, and since you resolved your initial issue, you can mark this thread as solved, by editing your first post's title, so others know there is no "task" left to do, but a solution to find...
Thanks ^^

Edit:
Fixed typo.

Last edited by 5hridhyan (2026-03-15 15:46:52)

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