Arch Linux

sebinho

Member

Registered: 2022-04-27

Posts: 9

Dual boot: Grub boot loader not found after Windows 11 BIOS update

Hello, I have a Lenovo laptop with Arch installed along side Windows 11 (which came preinstalled). Was dual booting perfectly well via the Grub boot loader until Windows performed a BIOS update. In my installation of Arch, the Grub boot loader was written to the same UEFI partition as the Windows Boot Manager. The laptop now boots directly into Windows without Arch given as an option. When I boot into the BIOS, the boot priority settings offer "UEFI" and "Legacy First" as options. Neither boot into Grub. I also tried disabling Legacy Support in the boot mode. Have my UEFI settings been overwritten and how should I go about resolving the situation?
Thanks

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,729

Re: Dual boot: Grub boot loader not found after Windows 11 BIOS update

Updating the system firmware often resets the NVRAM entries. You have to add GRUB's entry again, easiest way is by reinstalling GRUB.

sebinho

Member

Registered: 2022-04-27

Posts: 9

Re: Dual boot: Grub boot loader not found after Windows 11 BIOS update

Thanks, so this involves booting from the live drive, chrooting to the root partition and then following the grub streps that did during the installation, correct?

sebinho

Member

Registered: 2022-04-27

Posts: 9

Re: Dual boot: Grub boot loader not found after Windows 11 BIOS update

It's fixed. Thanks for the help.