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59 lines
2.0 KiB
59 lines
2.0 KiB
2 years ago
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---
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title: Win10, Grub 2 and UEFI
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summary: >
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I finally got my broken Grub configuration fixed. Booting Windows from Grub
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wasn't very hard back in the days, but the old "version" doesn't work with
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the newer **UEFI**-typed computers. Now... looking at it... it does not look
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very complicated either ;-)
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date: 2021-08-08
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categories: [computerstuff]
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tags: [linux,windows,grub,reminders]
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---
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Short and concise. I had to deal with a broken Grub 2 configuration recently
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and I always had to boot the windows partition from within the BIOS because
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Grub wasn't able to boot it right away.
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But I researched a bit again and found this:
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<https://www.aioboot.com/en/boot-windows-grub2/#UEFI>
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I tried this and was instantly happy again because my computer was able to start
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into Windows 10 again (without the need of telling the BIOS to start from a
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specific disk).
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My laptop runs Arcolinux, so to configure Grub I had to find the specific files.
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It is `/etc/grub.d/proxifiedScripts/custom` -- which could be also configured
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in the app `grub-customizer` (I found that out when I already modified the file).
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Not sure what script would load the script when updating the grub configuration
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in `/boot` I applied the configuration within `grub-customizer` and restartet
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the computer.
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The plain file in `/etc/grub.d/proxifiedScripts/` looks like this:
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~~~cfg
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# file: "/etc/grub.d/proxifiedScripts/custom"
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#!/bin/sh
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exec tail -n +3 $0
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# This file provides an easy way to add custom menu entries. Simply type the
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# menu entries you want to add after this comment. Be careful not to change
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# the 'exec tail' line above.
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menuentry "Windows 10"{
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search -s root -f /EFI/Microsoft/Boot/BCD
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chainloader /EFI/Microsoft/Boot/bootmgfw.efi
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boot
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}
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menuentry "Reboot"{
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reboot
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}
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~~~
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And/Or if you just want to use `grub-customizer`: go ahead, create the
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menu entry and insert the part from above (Windows 10).
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{{< figure src="grub-customizer.png" alt="example screenshot" caption="Grub-customizer" >}}
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Save and apply the new configuration, reboot and enjoy the comfort.
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