[Bug 924622] [NEW] [UEFI] GRUB 2 Blank Screen (no font)

Xiao-Long Chen chillermillerlong at hotmail.com
Wed Feb 1 02:19:34 UTC 2012


Public bug reported:

Ubuntu 11.10 and Ubuntu 12.04 have an issue where neither the boot
messages nor Plymouth are shown. This is due to GRUB2 not having a font
to load (unicode.pf2) and therefore update-grub doesn't generate needed
sections in the grub.cfg file.

Here's a diff of Debian's and Ubuntu's grub.cfg (on UEFI), both on a
completely minimal base system with GUI (to make sure no package
interferes): http://diffchecker.com/IN68Vue

You can see how Debian loads the unicode.pf2 font and also runs the
"load_video" function, which loads the video modules needed for EFI.
While it's for a different error, the Arch Linux Wiki also explains
this:
https://wiki.archlinux.org/index.php/GRUB2#Correct_GRUB2_No_Suitable_Mode_Found_Error

The problem can also be worked around by adding the following in
grub.cfg:

load_video
set gfxpayload=auto

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/924622

Title:
  [UEFI] GRUB 2 Blank Screen (no font)

Status in “grub2” package in Ubuntu:
  New

Bug description:
  Ubuntu 11.10 and Ubuntu 12.04 have an issue where neither the boot
  messages nor Plymouth are shown. This is due to GRUB2 not having a
  font to load (unicode.pf2) and therefore update-grub doesn't generate
  needed sections in the grub.cfg file.

  Here's a diff of Debian's and Ubuntu's grub.cfg (on UEFI), both on a
  completely minimal base system with GUI (to make sure no package
  interferes): http://diffchecker.com/IN68Vue

  You can see how Debian loads the unicode.pf2 font and also runs the
  "load_video" function, which loads the video modules needed for EFI.
  While it's for a different error, the Arch Linux Wiki also explains
  this:
  https://wiki.archlinux.org/index.php/GRUB2#Correct_GRUB2_No_Suitable_Mode_Found_Error

  The problem can also be worked around by adding the following in
  grub.cfg:

  load_video
  set gfxpayload=auto

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https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/924622/+subscriptions




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