[Bug 1178618] Re: --hotkey option does not work when the menu is hidden

[Yang Bai]

I had sent the patch in comment 15 to grub mailing list http://lists.gnu.org/archive/html/grub-devel/2013-09/msg00053.html. There were some comments on it and this patch is rejected.
After discussing, the maintaner wants to use the patch in comment 14.

Franz Hsieh sent one update patch to the upstream at
http://lists.gnu.org/archive/html/grub-devel/2013-10/msg00070.html and I
sent one ping email to upstream at http://lists.gnu.org/archive/html
/grub-devel/2013-11/msg00029.html.

But still no response from the upstream.

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https://bugs.launchpad.net/bugs/1178618

Title:
  --hotkey option does not work when the menu is hidden

Status in GRand Unified Bootloader:
  New
Status in OEM Priority Project:
  Confirmed
Status in OEM Priority Project precise series:
  Confirmed
Status in “grub2” package in Ubuntu:
  Triaged

Bug description:
  
  Grub2 can detect key modifier status in 'sleep --interruptible', 
  so that you can interrupt the sleep by pressing Shift.
  (src: grub-core/commands/sleep.c)

  It will be useful if grub2 can also detect function key status,
  so user can boot to pre-defined grub menu entry by press specified
  function key.

  Here is a proposed command name and usage.

  - getfunctionkey -i {sec} {keyname}

  Here is an example of configuration that user can start memory test
  whiling he is pressing F9.

  ```
  if ! getfunctionkey -i 3 f9 ; then
  menuentry "Memory test (memtest86+)" {                                                                                                                                                                           
          insmod part_msdos
          insmod ext2
          set root='(hd0,msdos1)'
          search --no-floppy --fs-uuid --set=root d458babc-81f0-4dd7-ac88-410407141e2c
          linux16 /boot/memtest86+.bin
  }
  fi
  ```

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