Arch Linux

kutz94

Member

Registered: 2019-09-02

Posts: 5

[Solved] Archiso won't boot in UEFI mode

I currently have Windows 10 installed in UEFI mode and am trying to do a dual boot with Arch. I have created an installation media using Rufus. When I go to my BIOS to select the which drive to boot from, my installation media is listed twice, once with UEFI in front and one without. When I select the one with UEFI, Windows 10 is loaded instead. When I select the one without UEFI, I am able to boot into the live environment but it is not in UEFI mode. To dual boot, Windows 10 and Arch, do they need to use the same boot mode? After reading the wiki it seems that that is the case. If so, why am I unable to load Arch in UEFI mode?

Last edited by kutz94 (2019-09-02 18:44:46)

Slithery

Administrator

From: Norfolk, UK

Registered: 2013-12-01

Posts: 5,776

Re: [Solved] Archiso won't boot in UEFI mode

Did you write the image correctly?

https://wiki.archlinux.org/index.php/US … tion_media

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No, it didn't "fix" anything. It just shifted the brokeness one space to the right. - jasonwryan
Closing -- for deletion; Banning -- for muppetry. - jasonwryan

aur - dotfiles

kutz94

Member

Registered: 2019-09-02

Posts: 5

Re: [Solved] Archiso won't boot in UEFI mode

I believe so. I actually tried all possible combinations of ISO vs DD and GPT vs MBR all with the same result.

Scimmia

Fellow

Registered: 2012-09-01

Posts: 13,694

Re: [Solved] Archiso won't boot in UEFI mode

Go into the firmware settings (it's not BIOS) and turn off the CSM (legacy boot, BIOS emulation).

kutz94

Member

Registered: 2019-09-02

Posts: 5

Re: [Solved] Archiso won't boot in UEFI mode

I disabled CSM in the BIOS, now only the UEFI option for my installation media is shown but still does not boot when selected.

loqs

Member

Registered: 2014-03-06

Posts: 18,859

Re: [Solved] Archiso won't boot in UEFI mode

Is secure boot enabled in the firmware?

kutz94

Member

Registered: 2019-09-02

Posts: 5

Re: [Solved] Archiso won't boot in UEFI mode

It was. I disabled it and that solved my problem. My installation media now boots in UEFI mode. Thank you!