Re: grub2 doesn't parse .jpeg files

[Luca Capello <luca@pca.it>]

Hi there!

On Tue, 26 Feb 2008 03:06:05 +0100, shirish wrote:
>  I think I know why the .jpg & the .svg files don't work. This is the
> section of /boot/grub/grub.cfg
>
> ### BEGIN /etc/grub.d/05_debian_theme ###
> insmod png
> if background_image
> (hd0,1)/usr/share/images/desktop-base/debblue-1600x1200.png ; then

It seems that you've modified the stock /etc/grub.d/05_debian_theme [1]:

--8<---------------cut here---------------start------------->8---
# check for usable backgrounds
use_bg=false
if [ "$GRUB_TERMINAL" = "gfxterm" ] ; then
  for i in {/usr/share/images/desktop-base,/boot/grub}/debian-blueish-wallpaper-640x480.{png,tga} ; do
    if bg=`convert_system_path_to_grub_path $i` ; then
      case ${bg} in
        *.png)          reader=png ;;
        *.tga)          reader=tga ;;
        *.jpg|*.jpeg)   reader=jpeg ;;
      esac
      if test -e /boot/grub/${reader}.mod ; then
        echo "Found Debian background: `basename ${bg}`" >&2
        use_bg=true
        break
      fi
    fi
  done
fi
--8<---------------cut here---------------end--------------->8---

Since the check is only performed for a specific image either in png or
tga format, jpg images are not taken into account.

Yesterday night I worked on a solution which enables something more
configurable, but I haven't had time to submit upstream yet.

Thx, bye,
Gismo / Luca

Footnotes: 
[1] http://svn.debian.org/wsvn/pkg-grub/grub2/trunk/debian/grub.d/05_debian_theme?op=file&rev=689&sc=0