pourquoi j'arrive pas à garder vga=9(=132x50x8) après le boot ?

#!/bin/sh
 
#
# This is the boot script for the `console-tools' package.
#
# It loads parameters from /etc/console-tools/config, maybe loads
# default screen-font, screen font-map, and application charset-map,
# and maybe start "vcstime"
#
# (c) 1997 Yann Dirson
 
if [ -r /etc/console-tools/config ] ; then
    . /etc/console-tools/config
fi
 
SETFONT="/usr/bin/consolechars"
SETFONT_OPT=""
CHARSET="/usr/bin/charset"
VCSTIME="/usr/sbin/vcstime"
 
# be sure the main program is installed
[ -x "${SETFONT}" ] || exit 0
 
 
# set DEVICE_PREFIX depending on devfs
if [ "`grep -c devfs /proc/filesystems`" -a -d /dev/vc ]; then
  DEVICE_PREFIX="/dev/vc/"
else
  DEVICE_PREFIX="/dev/tty"
fi
 
 
reset_vga_palette ()
{
    if ! /usr/bin/tty | grep -q ttyS ; then
       # not a serial console.
       if [ -f /proc/fb ]; then
           # They have a framebuffer device.
           # That means we have work to do...
           echo -n " ]R"
       fi
    fi
}
 
setup ()
{
    reset_vga_palette
 
    # start vcstime
    if [ "${DO_VCSTIME}" = "yes" -a -x ${VCSTIME} ] ; then
      echo -n Starting clock on text console: `basename ${VCSTIME}`
      ${VCSTIME} &
      echo .
    fi
 
 
    # Global default font+sfm
    if [ "${SCREEN_FONT}" ]
    then
 echo -n "Setting up general console font... "
 SCREEN_FONT="-f ${SCREEN_FONT}"
 
 # maybe use an external SFM
 [ "${SCREEN_FONT_MAP}" ] && SCREEN_FONT_MAP="-u ${SCREEN_FONT_MAP}"
 
 ${SETFONT} ${SETFONT_OPT} ${SCREEN_FONT} ${SCREEN_FONT_MAP} && echo done.
    fi
 
 
    # Per-VC font+sfm
    PERVC_FONTS=`set | grep "^SCREEN_FONT_vc[0-9]*="`
    if [ "${PERVC_FONTS}" ]
    then
 echo -n "Setting up per-VC fonts: "
 for font in ${PERVC_FONTS}
 do
     # extract VC and FONTNAME info from variable setting
     font=`echo $font | cut -c15-`
     vc=`echo $font | cut -d= -f1`
     font=`echo $font | cut -d= -f2`
     echo -n "${DEVICE_PREFIX}${vc}, "
     # eventually find an associated SFM
     eval sfm=\${SCREEN_FONT_MAP_vc${vc}}
     [ "$sfm" ] && sfm="-u $sfm"
 
     ${SETFONT} --tty=${DEVICE_PREFIX}$vc ${SETFONT_OPT} -f $font $sfm
 done
 echo "done."
    fi
 
 
    # Global ACM
    [ "${APP_CHARSET_MAP}" ] && ${CHARSET} G0 ${APP_CHARSET_MAP}
 
 
    # Per-VC ACMs
    PERVC_ACMS=`set | grep "^APP_CHARSET_MAP_vc[0-9]*="`
    if [ "${PERVC_ACMS}" ]
    then
 echo -n "Setting up per-VC ACM's: "
 for acm in ${PERVC_ACMS}
 do
     # extract VC and FONTNAME info from variable setting
     acm=`echo $acm | cut -c19-`
     vc=`echo $acm | cut -d= -f1`
     acm=`echo $acm | cut -d= -f2`
 
     echo -n "${DEVICE_PREFIX}${vc} ($acm), "
     ${CHARSET} --tty=${DEVICE_PREFIX}$vc G0 $acm
 done
 echo "done."
    fi
}
 
case "$1" in
start|reload|restart|force-reload)
    setup
    ;;
stop)
    ;;
*)
    setup
    ;;
esac