[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[bug #31979] Possibility to load UEFI x64 Windows Boot Manager
From: |
Rajko Stojadinovic |
Subject: |
[bug #31979] Possibility to load UEFI x64 Windows Boot Manager |
Date: |
Sat, 25 Dec 2010 22:51:31 +0000 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b8) Gecko/20100101 Firefox/4.0b8 |
URL:
<http://savannah.gnu.org/bugs/?31979>
Summary: Possibility to load UEFI x64 Windows Boot Manager
Project: GNU GRUB
Submitted by: rajkosto
Submitted on: Sat 25 Dec 2010 10:51:31 PM GMT
Category: Booting
Severity: Major
Priority: 5 - Normal
Item Group: Feature Request
Status: None
Privacy: Public
Assigned to: None
Originator Name: Rajko Stojadinovic
Originator Email: address@hidden
Open/Closed: Open
Discussion Lock: Any
Release:
Release: Bazaar - trunk
Reproducibility: Every Time
Planned Release: None
_______________________________________________________
Details:
I have installed uefi GRUB from latest bzr trunk compiled from source and
it's working good to boot linux and the EFI shell. However, it will not boot
the Windows Boot Manager (bootmgfw.efi) by using the chainloader directive.
All i get then is 2 hdd accesses, and then a black screen. I can press
ctrl-alt-del at this point to restart the computer. The bootmgfw.efi runs fine
when i boot it directly from the firmware boot manager, or if i boot the efi
shell from the firmware boot manager, and then run bootmgfw.fw. However, if
GRUB has been loaded in any step between those (like
GRUB->Shell->Bootmgfw.efi), it will only display a black screen. phcoder
suspects this is because GRUB is holding on to allocated memory, in order to
support EFI return on exit feature. Is it possible to implement a command like
chainloader for .efi files, but one that frees as much memory as possible
before transferring execution to the .efi file ? This should make booting
Windows Boot Manager work properly.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?31979>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- [bug #31979] Possibility to load UEFI x64 Windows Boot Manager,
Rajko Stojadinovic <=