No se pudieron cambiar los permisos de «install_auto_linux»: El backend no soporta la operación

#!/bin/sh
sudo ./install_linux

No se pudieron cambiar los permisos de «install_auto_linux»: El backend no soporta la operación

# this allows desktop-base to override our settings
f=/usr/share/desktop-base/grub_background.sh
if test -e ${f} ; then
source ${f}
else
WALLPAPER="/usr/share/images/desktop-base/moreblue-orbit-grub.png"
COLOR_NORMAL="black/black"
COLOR_HIGHLIGHT="magenta/black"

648ee65dd0c157a69b019a5372cbcfea4fc754a5  debian-blueish-[color=red]wallpaper[/color]-640x480.png
0431e97a6c661084c59676c4baeeb8c2f602edb8  debian-blueish[color=red]-wallpaper[/color]-640x480.png
968ecf6696c5638cfe80e8e70aba239526270864  debian-blueish-[color=red]wallpaper[/color]-640x480.tga
11143e8c92a073401de0b0fd42d0c052af4ccd9b  moreblue-orbit-grub.png
d00d5e505ab63f2d53fa880bfac447e2d3bb197c  moreblue-orbit-grub.png
f5b12c1009ec0a3b029185f6b66cd0d7e5611019  moreblue-orbit-grub.png
EOF
 
# Include the configuration of desktop-base if available.
if [ -f "/usr/share/desktop-base/grub_background.sh" ]; then
	. "/usr/share/desktop-base/grub_background.sh"
fi
 
# First check whether the user has specified a background image explicitly.
# If so, try to use it. Don't try the other possibilities in that case
# (#608263).
if [ -n "${GRUB_BACKGROUND+x}" ]; then
	set_background_image "${GRUB_BACKGROUND}" || set_default_theme
	exit 0
fi
 
# Next search for pictures the user put into /boot/grub/ and use the first one.
for background in *.jpg *.JPG *.jpeg *.JPEG *.png *.PNG *.tga *.TGA; do
	if set_background_image "${background}"; then
		exit 0
	fi
done
 
# Next try to use the background image and colors specified by desktop-base.
if set_background_image "${[color=red]WALLPAPER[/color]}" "${COLOR_NORMAL}" "${COLOR_HIGHLIGHT}"; then
	exit 0
fi
 
# If we haven't found a background image yet, use the default from desktop-base.

648ee65dd0c157a69b019a5372cbcfea4fc754a5  debian-blueish-[color=red]wallpaper[/color]-640x480.png

Supongo que serán direcciones   no se
Gracias por la ayuda
SAlu2