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