fedora_requires_release_note requested: [Bug 870317] grub2-efi: it failed to switch into *EDIT* mode on uefi machine

[Red Hat Bugzilla]

Product: Fedora
Version: 18
Component: grub2

Zhouping Liu  has asked  for fedora_requires_release_note:
Bug 870317: grub2-efi: it failed to switch into *EDIT* mode on uefi machine
https://bugzilla.redhat.com/show_bug.cgi?id=870317

------- Additional Comments from Zhouping Liu 
Description of problem:
when booting process step on grub2 screen, the grub can allow us to choose
which kernel you use, and edit the kernel boot parameters if need.
but it failed when I enter 'e' character to try to change some info.
the screen does not contain any words, and it can't return back to the grub
menu screen using enter 'Esc' button. the system didn't have any response, what
I only can do is to enter 'Ctrl+Alt+Delete' to reboot.

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

[root@localhost ~]# rpm -qa | grep grub
grub2-tools-2.00-9.fc18.x86_64
grub2-efi-2.00-9.fc18.x86_64
grubby-8.20-1.fc18.x86_64

How reproducible:
100%

Steps to Reproduce:
1. get a uefi machine
2. install fedora18 with Desktop
3. change the kernel parameter during booting in grub menu

Actual results:
can't switch into grub EDIT mode

Expected results:
no such above issue