#Grub won't find windows bootloader when trying to dual boot

1 messages · Page 1 of 1 (latest)

exotic bronze
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When I rebooted grub gave arch linux as the only bootable option

clear sigil
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well os-prober is tricky

exotic bronze
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So what can I do about this

clear sigil
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just add the win entry manually to ur grub config

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i do this to avoid using os prober which is a pain in the ass

exotic bronze
clear sigil
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whats ur windows esp?

exotic bronze
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Sorry this is my first time installing arch on a physical machine

clear sigil
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no worry

exotic bronze
clear sigil
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ill explain for ur understanding

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Efi System Partition

exotic bronze
clear sigil
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like nvme...?

exotic bronze
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nvme0n1p1 I think

clear sigil
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yes it is i think

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first of all

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sudo mount -v -t vfat -o ro /dev/nvme0n1p1 /mnt

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then u have to search the windows bootloader

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to know its path

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do u have it mounted?

exotic bronze
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Wait a sec

clear sigil
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alright

exotic bronze
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@clear sigil

clear sigil
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alright i was about to search its path manually but its ok

# 
if [ "${grub_platform}" == "efi" ]; then
    menuentry "Windows 11" {
        insmod part_gpt
        insmod fat
        insmod chain
        search --no-floppy --fs-uuid --set=root (ur uuid)
        chainloader /efi/Microsoft/Boot/bootmgfw.efi
    }
fi
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u should add something like this in ur grub.cfg

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u must modify (ur uuid)

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with the uuid of the windows esp

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to find this just do

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sudo blkid /dev/nvme0n1p1

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copy the filesystem uuid

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and paste it there without ()

exotic bronze
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Ok ty

clear sigil
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like: search --no-floppy --fs-uuid --set=root F1212-1212

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this will chainload the efi executable of the windows bootloader (windows boot manager)

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test it, if it works and its ok for u mark this as solved

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... solved

ocean drumBOT
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#9742 📣 If there is nothing else that we can do for you, please close this thread by adding "[SOLVED]" to the title.

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Thank you

exotic bronze
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Is this good?

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@clear sigil

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Booting into windows manually from bios works just fine

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After installing nvidia package i now get a black screen when trying to load up plasma in wayland

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Fixed dual boot

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Now I have to worry about nvidia drivers on arch

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I have a 4060 ti

clear sigil
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this is caused cause u probably didnt enable drm

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@exotic bronze

exotic bronze
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i fixed everything

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i just use xorg

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instead of wayland

clear sigil
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ok

clear sigil
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... solved

ocean drumBOT
#

#9742 📣 If there is nothing else that we can do for you, please close this thread by adding "[SOLVED]" to the title.

  • You can do this on desktop by clicking the three dots on the top right of the page, and pressing "Edit Post".
  • You can also do this on Android / iOS by long tapping your post in the text channel list, and tapping "Edit Post".

Your title should be like so: https://cdn.discordapp.com/attachments/503224329191030787/1039841700417384498/image.png
Thank you

somber cypress