Bug 710227

Summary:	can not boot installed F15 x86_64 on 2011 iMac, only get grub prompt
Product:	[Fedora] Fedora	Reporter:	Jurgen Kramer <gtmkramer>
Component:	grub	Assignee:	Peter Jones <pjones>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	15	CC:	jonathan, lkundrak, madhu.chinakonda, pjones
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-10-07 18:34:53 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Jurgen Kramer 2011-06-02 18:26:31 UTC

Description of problem:
After a successful install on my 2011 iMac I cannot boot into F15. I use rEFIT to select which OS to boot. Neither 'Boot Legacy OS from HD' or EFI boot works. When I select EFI boot (EFI\redhat\grub.efi) I only get the grub prompt.

Version-Release number of selected component (if applicable):
grub-0.97-71

How reproducible:
always

Steps to Reproduce:
1. Install F15 from x86-64 DVD
2. Select /dev/sda3 to install bootloader
3.
  
Actual results:
Booting either boot option fails.

Expected results:
Happily booting into F15

Additional info:
F15 itself seems to work great on the 2011 iMac my 2nd monitor works out of the box!

checking grub.conf I see references to hd0,2 while the /boot partition is on /dev/sda3. /dev/sda2 is OSX. After modifying it I still do net get a grub menu.

When I use the 'find (hd0,3)/' command in the grub shell I get 'Error 18: Selected cylinder exceeds maximum supported by BIOS'

I can supply more info/test more if needed.

Comment 1 Jurgen Kramer 2011-10-07 18:34:53 UTC

This problem should be fixed when using grub2-efi of a newer grub efi.