Bug 451734

Summary:	Grub Portion of UEFI Support
Product:	Red Hat Enterprise Linux 5	Reporter:	Larry Troan <ltroan>
Component:	grub	Assignee:	Peter Jones <pjones>
Status:	CLOSED CANTFIX	QA Contact:
Severity:	urgent	Docs Contact:
Priority:	high
Version:	5.5	CC:	garyhade, ichute, jfeeney, junichi.nomura, lcm, linuxdev-kernel-it, noboru.obata.ar
Target Milestone:	beta	Keywords:	FutureFeature, HardwareEnablement
Target Release:	5.5
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-08-24 11:36:46 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	253295
Bug Blocks:	482819, 504370

Description Larry Troan 2008-06-17 01:17:26 UTC

Description of problem:

This feature request is to track the grub portion of UEFI support.

From bug 253295 (kernel portion)

Short Description: Request full support for UEFI for i386 and x86_64 archs. 
Requires UEFI extensions to lilo/grub boot loaders. Also expect support EFI 
Variables in NVRAM exported to the OS, EFI runtime services. It appears most 
of the development for i386 is complete, but needs to be verified. x86_64 
support is being developed by Intel and needs to be submitted upstream. ia64 
has supported EFI from the beginning. 
Architecture: x86  x86_64

Comment 2 Larry Troan 2008-06-17 01:40:32 UTC

Summary:
* Bug 253295: UEFI support (kernel)
* Bug 451737: Bootloader Portion of UEFI Support
* Bug 451734: Grub Portion of UEFI Support

Comment 4 Larry Troan 2008-12-12 16:14:20 UTC

*** Bug 475687 has been marked as a duplicate of this bug. ***

Comment 6 Larry Troan 2009-08-24 11:36:46 UTC

On Fri, 2009-08-14 at 15:40 -0400, Denise Dumas wrote:
> Guys, we are not going to be able to do this in rhel5.  Even [the 
> suggested] backup [of] "just port grub" doesn't work.
> 
> The different hard disk formats and boot configuration for the two 
> firmware types mean that the OS must boot from the firmware that was 
> used for the installation. RHEL6 with UEFI support cannot boot from
> BIOS firmware and vice versa. (Windows also has this limitation).
> 
> Denise