Hello, I own a Lenovo laptop that I has both windows 11 and Linux. Windows updated and now I can’t boot into Linux. I tried pressing fn +f12 and the grub boot loader isn’t there only windows. Do I need to reinstall grub?
It’s likely that Windows changed the boot order; very common, unfortunately. Can you go into the BIOS menu and see what the boot order is?
I am in the BIOS menu, but I don’t know what to do
Sorry, I haven’t owned a laptop in 20 years. Do a web search for your make/model, certainly this has happened to someone before.
That’s alright.
I am at the option to change the boot device, but I don’t see grub.
Possibly. The Windows 11 update may have overwritten the grub entries.
Are you booting Win11 and Linux from the same drive?
I am. I also don’t see grub in the disk management
I think you may have to chroot into your system and reinstall grub.
Have you searched the forum for dual boot and/or reinstall grub? There are some posts about this issue.
I haven’t dual booted off the same drive in years; I don’t want to mess you up with some faulty instructions.
could be also it simply reactivated secure boot on updating Windows ?
Also it is very common that Windows recreate the ESP efi system on some updates.
So if the same ESP is used..