[Bug 729470] Re: grub-mkfont outputs fonts that grub cannot use (font characters not in ascending order: 0 <= 0)

[Launchpad Bug Tracker]

Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: grub2 (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/729470

Title:
  grub-mkfont outputs fonts that grub cannot use (font characters not in
  ascending order: 0 <= 0)

Status in “grub2” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: grub2

  As part of validation of the utility of the Ubuntu Mono in-development
  fonts I've been doing some tests for using them in Grub, Console,
  gfxboot and text-installer.

  Currently the "Ubuntu Beta Mono" only has about 1200 codepoints, so
  the rest need to fall back to an existing full-coverage font.  Grub
  currently uses Unifont for this.

    Current attempt at generation is:

    BASE=UbuntuBetaMono500-hacked
    grub-mkfont -s16 -o $BASE.pf2 $BASE.[ot]tf /usr/share/fonts/truetype/unifont/unifont.ttf

  with the following in '/etc/default/grub':

    GRUB_FONT=/boot/grub/UbuntuBetaMono500-hacked.pf2

  however, after an 'update-grub' and reboot the message:

    font characters not in ascending order: 0 <= 0

  is printed, which appears to be coming from:

    ./grub-core/font/font.c

  Ideally grub-mkfont should produce self-compliant .pf2 fonts!

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