[Debian-eeepc-devel] `.background_cache.png` and GRUB 2 (was: grub2 special on EEEPC?)

[Paul Menzel]

Dear Hans,


Am Sonntag, den 16.01.2011, 10:05 +0100 schrieb Hans-J. Ullrich:

> I changed to grub-pc on my notebooks, and I wondered, that grub-pc
> behaves on my EEEPC other than on my notebook.
> 
> As I am using my own starting picture, I
> changed /usr/share/images/desktop-base/grub_background.sh pointing it
> to my own picture.

The script is in

        $ dpkg -S "grub_background"
        desktop-base: /usr/share/desktop-base/grub_background.sh

without `images/` and the variable is set as follows.

        WALLPAPER=/usr/share/images/desktop-base/desktop-grub.png

> This is configured on any system. But on my EEEPC I found a file
> called
> 
> /boot/grub/.background_cache.png. As the system behaves as I wished, I
> suppose it is made for speed purposes and wanted so. Does someone know
> where to set/unset this?

I searched for `.background_cache.png` and found ticket #605705.

It seems to be set in

        $ dpkg -S /etc/grub.d/05_debian_theme 
        grub-pc: /etc/grub.d/05_debian_theme

since `grub2` `1.98+20100804-11` [2, same changes as in [1] but
differences are inlined in message].

        +# Set the location of a possibly necessary cache file for the background image.
        +# NOTE: This MUST BE A DOTFILE to avoid confusing it with user-defined images.
        +BACKGROUND_CACHE=".background_cache"
        +
        +set_default_theme(){
        +	# Set the traditional Debian blue theme.
        +	echo "${1}set menu_color_normal=cyan/blue"
        +	echo "${1}set menu_color_highlight=white/blue"
         }
 
Is/Was `/usr` on an encrypted partition on your Eee PC?

[…]


Thanks,

Paul


[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=605705
[2] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=607524
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