I had Windows 8 installed, shrunk it and installed Fedora 17 using the free space. It now only boots into Fedora.
I have these two EFI partitions:
/dev/sda2
/EFI
/Boot/bootx64.efi
/toshiba/Boot
/bootmgfw.efi
/bootmgr.efi
...
/Microsoft/Boot
/bootmgfw.efi
/bootmgr.efi
...
/dev/sda6
/EFI/redhat
/device.map
/grub.conf -- this is the config file used
/grub.efi
I've tried all .efi files on sda2. When one of those options is selected the Grub menu redraws. Nothing happens and no errors are given.
grub.conf:
...
boot=/dev/sda6
...
title win8
root (hd0,2)
chainloader /EFI/path to one of the .efi files
Using Grub 0.97-93.tc17
Oddly, if I enter the grub command-line and enter these two commands I boot up into windows with no problems:
root (hd0,2)
quit
If possible I'd like to have an entry I can just select instead.