GNU GRUB - Bugs: bug #31979, Possibility to load UEFI x64...
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bug #31979: Possibility to load UEFI x64 Windows Boot Manager
Submitter: | Rajko Stojadinovic <rajkosto> | ||
Submitted: | Sat 25 Dec 2010 10:51:31 PM UTC | ||
Votes: | 70 | ||
Category: | Booting | Severity: | Major |
Priority: | 5 - Normal | Item Group: | Feature Request |
Status: | Fixed | Privacy: | Public |
Assigned to: | None | Originator Name: | Rajko Stojadinovic |
Open/Closed: | Closed | Release: | Bazaar - trunk |
Release: | Reproducibility: | Every Time | |
Planned Release: | 2.02 |
Wed 02 Mar 2016 02:40:43 PM UTC, comment #1: |
Vladimir Serbinenko <phcoder> |
Sat 25 Dec 2010 10:51:31 PM UTC, original submission:
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. |
Rajko Stojadinovic <rajkosto> |
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There are 70 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.
Follow 5 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2017-03-05 | phcoder | Status | None | Fixed | |
Open/Closed | Open | Closed | |||
2016-03-02 | phcoder | Planned Release | None | 2.02 | |
2011-06-05 | fhatat | Carbon-Copy | - | Added fhatat | |
2011-03-14 | fredbaton | Carbon-Copy | - | Added fredbaton |
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