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ubunpac

[Résolu] Menu de Grub2 invisible, mais fontionnant

Bonsoir,

J'ai installé Ubuntu 9.10 par dessus la 9.04 pour refaire une installation propre. J'étais donc sur l'ancien chargeur d'amorçage (Grub Legacy). Je suis donc passé sur Grub2 (grub-pc).
Lors du démarrage du menu Grub2, celui-ci reste invisible. Si j'appuie sur la flèche du bas (sur mon clavier), je choisi bien un autre OS (mais à l'aveuglette). J'en conclue donc que mon Grub fonctionne.
J'ai beau chercher toute l'après midi sur les forums, je n'ai rien trouvé qui m'aide.

Comment faire pour rendre visible le menu de Grub ?

Voici la configuration de mon Grub :

gedit /etc/default/grub

# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.

GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT="10"
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=" vga=769"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entrys
#GRUB_DISABLE_LINUX_RECOVERY="true"

gedit /etc/grub.d/00_header

#! /bin/sh -e

# grub-mkconfig helper script.
# Copyright (C) 2006,2007,2008,2009  Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB.  If not, see <http://www.gnu.org/licenses/>.

transform="s,x,x,"

prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
grub_prefix=`echo /boot/grub | sed ${transform}`

. ${libdir}/grub/grub-mkconfig_lib

# Do this as early as possible, since other commands might depend on it.
# (e.g. the `loadfont' command might need lvm or raid modules)
for i in ${GRUB_PRELOAD_MODULES} ; do
  echo "insmod $i"
done

if [ "x${GRUB_DEFAULT}" = "x" ] ; then GRUB_DEFAULT=0 ; fi
if [ "x${GRUB_DEFAULT}" = "xsaved" ] ; then GRUB_DEFAULT='${saved_entry}' ; fi
if [ "x${GRUB_TIMEOUT}" = "x" ] ; then GRUB_TIMEOUT=5 ; fi
if [ "x${GRUB_GFXMODE}" = "x" ] ; then GRUB_GFXMODE=640x480 ; fi

cat << EOF
if [ -s /boot/grub/grubenv ]; then
  have_grubenv=true
  load_env
fi
set default="${GRUB_DEFAULT}"
if [ \${prev_saved_entry} ]; then
  saved_entry=\${prev_saved_entry}
  save_env saved_entry
  prev_saved_entry=
  save_env prev_saved_entry
fi
EOF

case ${GRUB_TERMINAL_INPUT}:${GRUB_TERMINAL_OUTPUT} in
  serial:* | *:serial)
    if ! test -e ${grub_prefix}/serial.mod ; then
      echo "Serial terminal not available on this platform." >&2 ; exit 1
    fi

    if [ "x${GRUB_SERIAL_COMMAND}" = "x" ] ; then
      grub_warn "Requested serial terminal but GRUB_SERIAL_COMMAND is unspecified. Default parameters will be used."
      GRUB_SERIAL_COMMAND=serial
    fi
    echo "${GRUB_SERIAL_COMMAND}"
  ;;
esac

case x${GRUB_TERMINAL_INPUT} in
  x)
    # Just use the native terminal
  ;;
  x*)
    cat << EOF
if terminal_input ${GRUB_TERMINAL_INPUT} ; then true ; else
  # For backward compatibility with versions of terminal.mod that don't
  # understand terminal_input
  terminal ${GRUB_TERMINAL_INPUT}
fi
EOF
  ;;
esac

case x${GRUB_TERMINAL_OUTPUT} in
 xgfxterm)
    # Make the font accessible
    prepare_grub_to_access_device `${grub_probe} --target=device ${GRUB_FONT_PATH}`

    cat << EOF
if loadfont `make_system_path_relative_to_its_root ${GRUB_FONT_PATH}` ; then
set gfxmode=640x480
  insmod gfxterm
  insmod ${GRUB_VIDEO_BACKEND}
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
EOF
  ;;
  x)
    # Just use the native terminal
  ;;
  x*)
    cat << EOF
if terminal_output ${GRUB_TERMINAL_OUTPUT} ; then true ; else
  # For backward compatibility with versions of terminal.mod that don't
  # understand terminal_output
  terminal ${GRUB_TERMINAL_OUTPUT}
fi
EOF
  ;;
esac

cat << EOF
if [ \${recordfail} = 1 ]; then
  set timeout=-1
else
  set timeout=${GRUB_TIMEOUT}
fi
EOF

gedit /etc/grub.d/05_debian_theme

#!/bin/bash -e

source /usr/lib/grub/grub-mkconfig_lib

set_mono_theme()
{
  cat << EOF
set menu_color_normal=white/black
set menu_color_highlight=black/white
EOF
}

# check for usable backgrounds
use_bg=false
if [ "$GRUB_TERMINAL_OUTPUT" = "gfxterm" ] ; then
  for i in {/boot/grub,/usr/share/images/desktop-base}/moreblue-orbit-grub.{png,tga} ; do
    if is_path_readable_by_grub $i ; then 
      bg=$i
      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

# set the background if possible
if ${use_bg} ; then
  prepare_grub_to_access_device `${grub_probe} --target=device ${bg}`
  cat << EOF
insmod ${reader}
if background_image `make_system_path_relative_to_its_root ${bg}` ; then
  set color_normal=black/black
  set color_highlight=magenta/black
else
EOF
fi

# otherwise, set a monochromatic theme for Ubuntu
if ${use_bg} ; then
  set_mono_theme | sed -e "s/^/  /g"
  echo "fi"
else
  set_mono_theme
fi

gedit /boot/grub/grub.cfg

#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /usr/sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s /boot/grub/grubenv ]; then
  have_grubenv=true
  load_env
fi
set default="0"
if [ ${prev_saved_entry} ]; then
  saved_entry=${prev_saved_entry}
  save_env saved_entry
  prev_saved_entry=
  save_env prev_saved_entry
fi
insmod ext2
set root=(hd0,6)
search --no-floppy --fs-uuid --set 2f80ad90-a7b3-4be9-9a03-e1d0097ef683
if loadfont /usr/share/grub/unicode.pf2 ; then
set gfxmode=640x480
  insmod gfxterm
  insmod vbe
  if terminal_output gfxterm ; then true ; else
    # For backward compatibility with versions of terminal.mod that don't
    # understand terminal_output
    terminal gfxterm
  fi
fi
if [ ${recordfail} = 1 ]; then
  set timeout=-1
else
  set timeout=10
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/white
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/10_linux ###
menuentry "Ubuntu, Linux 2.6.31-16-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
	set quiet=1
	insmod ext2
	set root=(hd0,6)
	search --no-floppy --fs-uuid --set 2f80ad90-a7b3-4be9-9a03-e1d0097ef683
	linux	/boot/vmlinuz-2.6.31-16-generic root=UUID=2f80ad90-a7b3-4be9-9a03-e1d0097ef683 ro  vga=769  quiet splash
	initrd	/boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-16-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
	insmod ext2
	set root=(hd0,6)
	search --no-floppy --fs-uuid --set 2f80ad90-a7b3-4be9-9a03-e1d0097ef683
	linux	/boot/vmlinuz-2.6.31-16-generic root=UUID=2f80ad90-a7b3-4be9-9a03-e1d0097ef683 ro single  vga=769
	initrd	/boot/initrd.img-2.6.31-16-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
	set quiet=1
	insmod ext2
	set root=(hd0,6)
	search --no-floppy --fs-uuid --set 2f80ad90-a7b3-4be9-9a03-e1d0097ef683
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=2f80ad90-a7b3-4be9-9a03-e1d0097ef683 ro  vga=769  quiet splash
	initrd	/boot/initrd.img-2.6.31-14-generic
}
menuentry "Ubuntu, Linux 2.6.31-14-generic (recovery mode)" {
        recordfail=1
        if [ -n ${have_grubenv} ]; then save_env recordfail; fi
	insmod ext2
	set root=(hd0,6)
	search --no-floppy --fs-uuid --set 2f80ad90-a7b3-4be9-9a03-e1d0097ef683
	linux	/boot/vmlinuz-2.6.31-14-generic root=UUID=2f80ad90-a7b3-4be9-9a03-e1d0097ef683 ro single  vga=769
	initrd	/boot/initrd.img-2.6.31-14-generic
}
### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/20_memtest86+ ###
menuentry "Memory test (memtest86+)" {
	linux16	/boot/memtest86+.bin
}
menuentry "Memory test (memtest86+, serial console 115200)" {
	linux16	/boot/memtest86+.bin console=ttyS0,115200n8
}
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry "Microsoft Windows XP Professionnel (on /dev/sda1)" {
	insmod ntfs
	set root=(hd0,1)
	search --no-floppy --fs-uuid --set 4e08e98408e96b81
	drivemap -s (hd0) ${root}
	chainloader +1
}
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

J'ai pensé qu'il s'agissait du temps d'apparence du menu, mais non (GRUB_TIMEOUT="10").
J'ai donc pensé qu'il s'agissait d'un menu caché, mais non (#GRUB_HIDDEN_TIMEOUT=0).
J'ai donc installé le paquet "startupmanager" pour configurer "graphiquement" Grub2, mais toujours pareil.
J'ai enfin pensé à une histoire de couleur (texte noir sur fond noir). Dans /etc/grub.d/05_debian_thème, j'ai donc changé la ligne set color_normal=black/black par set color_normal=magenta/black .
Mais là je ne sais pas trop si c'était le bon fichier, la bonne ligne et le bon intitulé qu'il fallait mettre.

Voila, je ne sais plus quoi faire.
Alors si quelqu'un a une idée ou peux me guider, merci d'avance.

Dernière modification par ubunpac (Le 22/12/2009, à 23:38)

---

°Software is like sex, it's better when it's free. (Linus Torvalds)
°Commencez par changer en vous ce que vous voulez changer autour de vous. (Gandhi)
°Le savoir n'est bon que s'il est partagé. (???)

ubunpac

Re : [Résolu] Menu de Grub2 invisible, mais fontionnant

Le menu est apparue suite au changement de :

GRUB_TERMINAL=console

en décommentant la ligne.

Reste  à savoir pourquoi le problème se produit en mode graphique...

---

°Software is like sex, it's better when it's free. (Linus Torvalds)
°Commencez par changer en vous ce que vous voulez changer autour de vous. (Gandhi)
°Le savoir n'est bon que s'il est partagé. (???)

ubunpac

Re : [Résolu] Menu de Grub2 invisible, mais fontionnant

Autre essaie en suivant ce tuto :
Burg - Menu Graphique Avancé pour Grub2
Cela me permettait de tester un "menu graphique" sans le "mode graphique" (c'est à dire en laissant décommenter GRUB_TERMINAL=console).
Mais malheureusement, je n'ai toujours pas le menu apparant.

J'ai l'impression qu'il s'agit de ma carte graphique...
...mais là, je ne sais pas ou m'orienter.

De plus, je ne comprend pas comment fonctionne Grub2 en mode graphique.

---

°Software is like sex, it's better when it's free. (Linus Torvalds)
°Commencez par changer en vous ce que vous voulez changer autour de vous. (Gandhi)
°Le savoir n'est bon que s'il est partagé. (???)