Difference between revisions of "Talk:Unified Extensible Firmware Interface"

From ArchWiki
Jump to navigation Jump to search
m (Added note to Olive's suggestion.)
Line 13: Line 13:
  
 
:The `bcdedit` command causes Windows to chainload the named .efi loader, no new NVRAM entries are made. [[User:Head on a Stick|Head on a Stick]] ([[User talk:Head on a Stick|talk]]) 15:49, 23 March 2019 (UTC)
 
:The `bcdedit` command causes Windows to chainload the named .efi loader, no new NVRAM entries are made. [[User:Head on a Stick|Head on a Stick]] ([[User talk:Head on a Stick|talk]]) 15:49, 23 March 2019 (UTC)
 +
 +
== Installation in 32-bit UEFI ==
 +
 +
We have [[Unified_Extensible_Firmware_Interface#Booting_64-bit_kernel_on_32-bit_UEFI|instructions]] about how to make a bootable arch in machines with 32-bit UEFI, but neither in [[Installation_guide|Installation]] page nop [[GRUB]] talks specificly how to install arch in those machines. Which additional steps are necessary?

Revision as of 08:29, 15 April 2019

bcdedit

I do not think that the command

# bcdedit /set {bootmgr} path \EFI\path\to\app.efi

"tell the Windows boot loader to run a different UEFI application" as mentioned in the wiki (in the "Windows changes boot order" section) I think it add an entry in the UEFI firmware. But that can be as well accomplished under Linux with efibootmgr command. If the UEFI is weird (by refusing to boot something other than Windows for example); I do not think it will be of any help. I am not a Windows specialist and so I do not take the responsibility to edit this section, but someone more knowledgeable than me should double check it.

—This unsigned comment is by Olive (talk) 13:00, 20 September 2016‎. Please sign your posts with ~~~~!

From my reading, it seems that this command should trick windows into running a different EFI application instead of its own boot manager (bootmgfw.efi). I don't have the means to test it right now, but given that there are plenty of other recommendations in the article, I don't think it hurts to keep this command around. We'll just have to wait until someone gives it a test. Silverhammermba (talk) 15:35, 20 September 2016 (UTC)
The `bcdedit` command causes Windows to chainload the named .efi loader, no new NVRAM entries are made. Head on a Stick (talk) 15:49, 23 March 2019 (UTC)

Installation in 32-bit UEFI

We have instructions about how to make a bootable arch in machines with 32-bit UEFI, but neither in Installation page nop GRUB talks specificly how to install arch in those machines. Which additional steps are necessary?