this post was submitted on 21 Sep 2025
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Old laptop suddenly won't recognize Linux boot drive (feddit.nl)
submitted 3 days ago* (last edited 2 days ago) by EddoWagt@feddit.nl to c/linux@lemmy.ml
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I'm in a really weird situation, yesterday I installed Linux (Fedora Kinoite) on my mothers laptop (An old Asus F550C) and it worked perfectly fine. Great! Or so I thought.

We needed a few files from Windows 10, so I put that drive in, put the files on a USB stick, put the Linux drive back in and... Nothing? It recognizes the drive, but not the Linux boot option. I put the drive in my pc and it works fine, the boot drive is also still detected in the laptop just fine.

What the hell could it be??

  • The laptop is fine (Windows drive works perfectly)
  • The drive is recognized in bios (But not the boot option)
  • The drive works fine in my desktop and can boot to Fedora
  • The laptop can boot to the USB drive I used to create the install
  • Yesterday it worked just fine
  • I went through the bios, but can't find any settings related to this (Secure boot did not fix it)

Update: the issue is solved! Windows somehow wiped the efiboot entry.

I mounted the drive from a live usb and ran

sudo efibootmgr --create --disk /dev/sda --part 1 --label "Fedora" --loader '\EFI\fedora\shimx64.efi'

After rebooting, the system works again!

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[–] non_burglar@lemmy.world 4 points 3 days ago (1 children)

I've dealt with something similar to this on a lenovo ideapad.

The BIOS picks up UEFI info from windows and messes up the boot config and order. I solved it by using grub2 rescue, booting to the correct Linux entry and using grub to update UEFI and write the config correctly again.

Super pain in the a**.

[–] EddoWagt@feddit.nl 3 points 2 days ago

This ended up being the issue! Booted up a live USB, mounted the disk and ran

sudo efibootmgr --create --disk /dev/sda --part 1 --label "Fedora" --loader '\EFI\fedora\shimx64.efi'

After rebooting it worked again!

Now to never plug a windows drive into that PC again...