Arch Linux

Razer(x)

Member

Registered: 2006-08-30

Posts: 109

GRUB not finding Windows partition

So, reinstalled Arch again, everything is fine except GRUB, i cannot boot Windows

In the past, i would copy the Microsoft folder and put it inside /boot/EFI, and it worked flawlessy everytime

Not sure what is happening now, when i try to boot Windows i get "blinizializelibrary failed" error

Booting from BIOS works fine, so the Windows partition is ok

Tried recreating EFI on C in Windows, but nothing changed

What could i try?

ewaller

Administrator

From: Pasadena, CA

Registered: 2009-07-13

Posts: 20,701

Re: GRUB not finding Windows partition

So, reinstalled Arch again, everything is fine except GRUB, i cannot boot Windows

In but three hours?  I'm skeptical.
https://bbs.archlinux.org/viewtopic.php … 7#p1888237

Last edited by ewaller (2020-02-19 00:19:15)

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Astron0

Member

Registered: 2020-02-22

Posts: 2

Re: GRUB not finding Windows partition

NOTE: This assumes you're on an UEFI system.
This is different to how you would do it today.
1. You would first install grub and efibootmgr;

pacman -S grub efibootmgr 

Then you would install os-prober;

pacman -S os-prober 

2. Once you install all three, specify the grub install location:

grub-install --target=x86_64-efi --efi-directory=/boot/ --bootloader-id=grub 

3. Then, mount the Windows 10 EFI partition onto a directory (/mnt2 works fine). Make the directory with

mkdir /mnt2

then mount the efi partition

mount /dev/sda2 /mnt2 

(check what your efi partition for windows is first with

fdisk -l 

(It's usually /dev/sda2).
4. Finally, generate the grub config file with;

grub-mkconfig -o /boot/grub/grub.cfg 

You'll know you've done it right when grub states that it's found both the linux image and the Windows Boot Manager.

Mod note: Removed link to unsupported youtube tutorial. Please do not link to this sort of thing in the future. -- WorMzy

Last edited by WorMzy (2020-02-22 14:26:42)

Head_on_a_Stick

Member

From: The Wirral

Registered: 2014-02-20

Posts: 9,003

Website

Re: GRUB not finding Windows partition

when i try to boot Windows i get "blinizializelibrary failed" error

That's a Windows error message so please ask about that on a Windows forum.

Refer to this video and it's current time stamp if you're having trouble

Please don't recommend that people follow crappy, unsupported YouTube videos.

The OP should refer to the ArchWiki page about Windows dual boot.

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Astron0

Member

Registered: 2020-02-22

Posts: 2

Re: GRUB not finding Windows partition

when i try to boot Windows i get "blinizializelibrary failed" error

That's a Windows error message so please ask about that on a Windows forum.

Refer to this video and it's current time stamp if you're having trouble

Please don't recommend that people follow crappy, unsupported YouTube videos.

The OP should refer to the ArchWiki page about Windows dual boot.

Sorry, will keep that in mind in the future