fino a ieri ho usato Grub 0.97 con menù grafico che avevo preso e modificato da OpenSUSE, e funzionava alla meraviglia. Ieri ho voluto provare Grub 1.98, scaricando il pacchetto da qua: http://www.webalice.it/linux352. Poi ho provato a prendere i file di configurazione di Grub da Sabayon 5.4, solo che, nonostante abbia messo tutto come si deve (almeno credo), non si vede l'immagine di background e la risoluzione risulta di 640x480 anche se ho specificato 1024x768, nonostante Grub non dia errori e funziona, solo che è in modalità di testo. Eppure su Sabayon funziona correttamente. Inoltre ho letto che usando il comando set gfxpayload posso impostare la risoluzione del framebuffer al momento del boot, invece risulta sempre a 640x480. Il nuovo Grub sarà anche più potente del vecchio Grub Legacy, ma è molto più complicato. Allego il contenuto dei file di configurazione che potrebbero servire per la risoluzione del problema:
/etc/default/grub
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# /etc/default/grub
# If you change this file, run 'grub-mkconfig -o /boot/grub/grub.cfg' afterwards to update
# /boot/grub/grub.cfg.
GRUB_DEFAULT=saved
GRUB_DISTRIBUTOR="Sabayon"
GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=5
# Add your extra parameters here below
# Dear user, put your boot flags here ;-)
GRUB_CMDLINE_LINUX_DEFAULT=""
# ATTENTION ATTENTION ATTENTION
# DO NOT EDIT THIS MANUALLY NOR SET IT TO EMPTY IF IT'S ALREADY FILLED WITH
# SOMETHING (DONE BY THE INSTALLER). REALLY, DON'T !
GRUB_CMDLINE_LINUX=""
# ATTENTION ATTENTION ATTENTION
# 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=1024x768
# 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="false"
# Default wallpaper image path
GRUB_WALLPAPER="/boot/grub/default-splash.png"
# Boot menu option normal color
GRUB_COLOR_NORMAL="white/black"
# Boot menu option "highlight" color
GRUB_COLOR_HIGHLIGHT="magenta/black"
if [ -f "/etc/default/sabayon-grub" ]; then
# this file is placed by the Sabayon Installer and contains
# custom GRUB_CMDLINE_LINUX parameters created at install
# time.
source /etc/default/sabayon-grub
fi
# DO NOT REMOVE THIS IF YOUR GRUB_CMDLINE_LINUX IS EMPTY (BACKWARD COMPAT)
if [ -z "${GRUB_CMDLINE_LINUX}" ]; then
if [ ! -e "/proc/cmdline" ]; then
echo "ATTENTION ATTENTION ATTENTION" >&2
echo "GRUB_CMDLINE_LINUX is not set inside /etc/default/grub" >&2
echo " cannot generate a bootable configuration." >&2
else
echo "ATTENTION ATTENTION ATTENTION" >&2
echo "GRUB_CMDLINE_LINUX is not set inside /etc/default/grub" >&2
echo " grub is going to use your /proc/cmdline content" >&2
GRUB_CMDLINE_LINUX="`cat /proc/cmdline | sed -e 's#BOOT_IMAGE=.* ro ##g'`"
fi
fi
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#! /bin/sh -e
# grub-mkconfig helper script.
# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
transform="s,x,x,"
prefix=/usr
exec_prefix=${prefix}
bindir=${exec_prefix}/bin
libdir=${exec_prefix}/lib
. ${libdir}/grub/grub-mkconfig_lib
grub_prefix=`echo /boot/grub | sed ${transform}`
locale_dir=`echo /boot/grub/locale | sed ${transform}`
grub_lang=`echo $LANG | cut -d _ -f 1`
# 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 \$prefix/grubenv ]; then
load_env
fi
set default="${GRUB_DEFAULT}"
if [ \${prev_saved_entry} ]; then
set saved_entry=\${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z \${boot_once} ]; then
saved_entry=\${chosen}
save_env 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 ${GRUB_FONT_PATH}` ; then
set gfxmode=${GRUB_GFXMODE}
# vga= is deprecated, grub2 handles this just fine
# making grub2 res == linux fb res
set gfxpayload=keep
insmod gfxterm
insmod ${GRUB_VIDEO_BACKEND}
if terminal_output gfxterm ; then true ; else
# For backward compatibility with versions of terminal.mod that don't
# understand terminal_output
terminal gfxterm
fi
EOF
if [ x$GRUB_THEME != x ] && [ -f $GRUB_THEME ] \
&& is_path_readable_by_grub $GRUB_THEME; then
echo "Found theme: $GRUB_THEME" >&2
prepare_grub_to_access_device `${grub_probe} --target=device $GRUB_THEME` | sed -e "s/^/ /"
cat << EOF
insmod gfxmenu
set theme=(\$root)`make_system_path_relative_to_its_root $GRUB_THEME`
set menuviewer=gfxmenu
EOF
fi
cat << EOF
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 ${GRUB_TERMINAL_OUTPUT}
fi
EOF
;;
esac
# Gettext variables and module
if [ "x${LANG}" != "xC" ] ; then
prepare_grub_to_access_device $(${grub_probe} --target=device ${locale_dir})
cat << EOF
set locale_dir=(\$root)$(make_system_path_relative_to_its_root ${locale_dir})
set lang=${grub_lang}
insmod gettext
EOF
fi
if [ "x${GRUB_HIDDEN_TIMEOUT}" != "x" ] ; then
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then
verbose=
else
verbose=" --verbose"
fi
cat << EOF
if sleep$verbose --interruptible ${GRUB_HIDDEN_TIMEOUT} ; then
set timeout=${GRUB_TIMEOUT}
fi
EOF
else
cat << EOF
set timeout=${GRUB_TIMEOUT}
EOF
fi
# Play an initial tune
if [ "x${GRUB_INIT_TUNE}" != "x" ] ; then
cat << EOF
insmod play
play ${GRUB_INIT_TUNE}
EOF
fi
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#!/bin/bash -e
. /usr/lib/grub/grub-mkconfig_lib
set_blue_theme()
{
cat << EOF
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
EOF
}
# check for usable backgrounds
use_bg=false
if [ "$GRUB_TERMINAL_OUTPUT" = "gfxterm" ] && [ -n "${GRUB_WALLPAPER}" ]; then
for i in /boot/grub/`basename ${GRUB_WALLPAPER}` ${GRUB_WALLPAPER} ; 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 background image: `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 ${bg}` ; then
set color_normal=${GRUB_COLOR_NORMAL}
set color_highlight=${GRUB_COLOR_HIGHLIGHT}
else
EOF
fi
# otherwise, set the traditional Debian blue theme
if ${use_bg} ; then
set_blue_theme | sed -e "s/^/ /g"
echo "fi"
else
set_blue_theme
fi
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#! /bin/sh -e
# grub-mkconfig helper script.
# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
#
# GRUB is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# GRUB is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
prefix=/usr
exec_prefix=${prefix}
bindir=${exec_prefix}/bin
libdir=${exec_prefix}/lib
. ${libdir}/grub/grub-mkconfig_lib
export TEXTDOMAIN=grub
export TEXTDOMAINDIR=@LOCALEDIR@
CLASS="--class gnu-linux --class gnu --class os"
if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then
OS=GNU/Linux
else
OS="${GRUB_DISTRIBUTOR} GNU/Linux"
CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr '[A-Z]' '[a-z]') ${CLASS}"
fi
# loop-AES arranges things so that /dev/loop/X can be our root device, but
# the initrds that Linux uses don't like that.
case ${GRUB_DEVICE} in
/dev/loop/*|/dev/loop[0-9])
GRUB_DEVICE=`losetup ${GRUB_DEVICE} | sed -e "s/^[^(]*(\([^)]\+\)).*/\1/"`
;;
esac
if [ "x${GRUB_DEVICE_UUID}" = "x" ] || [ "x${GRUB_DISABLE_LINUX_UUID}" = "xtrue" ] \
|| ! test -e "/dev/disk/by-uuid/${GRUB_DEVICE_UUID}" ; then
LINUX_ROOT_DEVICE=${GRUB_DEVICE}
else
LINUX_ROOT_DEVICE=UUID=${GRUB_DEVICE_UUID}
fi
linux_entry ()
{
os="$1"
version="$2"
recovery="$3"
args="$4"
if ${recovery} ; then
title="$(gettext "%s, with Linux %s (recovery mode)")"
else
title="$(gettext "%s, with Linux %s")"
fi
printf "menuentry \"${title}\" ${CLASS} {\n" "${os}" "${version}"
save_default_entry | sed -e "s/^/\t/"
# Use ELILO's generic "efifb" when it's known to be available.
# FIXME: We need an interface to select vesafb in case efifb can't be used.
if [ "x$GRUB_GFXPAYLOAD_LINUX" = x ]; then
if grep -qx "CONFIG_FB_EFI=y" /boot/config-${version} 2> /dev/null \
&& grep -qx "CONFIG_VT_HW_CONSOLE_BINDING=y" /boot/config-${version} 2> /dev/null; then
cat << EOF
set gfxpayload=keep
EOF
fi
else
cat << EOF
set gfxpayload=$GRUB_GFXPAYLOAD_LINUX
EOF
fi
if [ -z "${prepare_boot_cache}" ]; then
prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/")"
fi
printf '%s\n' "${prepare_boot_cache}"
cat << EOF
echo $(printf "$(gettext "Loading Linux %s ...")" ${version})
linux ${rel_dirname}/${basename} root=${linux_root_device_thisversion} ro ${args}
EOF
if test -n "${initrd}" ; then
cat << EOF
echo $(gettext "Loading initial ramdisk ...")
initrd ${rel_dirname}/${initrd}
EOF
fi
cat << EOF
}
EOF
}
list=`for i in /boot/vmlinu[xz]-* /vmlinu[xz]-* ; do
if grub_file_is_not_garbage "$i" ; then echo -n "$i " ; fi
done`
prepare_boot_cache=
while [ "x$list" != "x" ] ; do
linux=`version_find_latest $list`
echo "Found linux image: $linux" >&2
basename=`basename $linux`
dirname=`dirname $linux`
rel_dirname=`make_system_path_relative_to_its_root $dirname`
version=`echo $basename | sed -e "s,^[^0-9]*-,,g"`
alt_version=`echo $version | sed -e "s,\.old$,,g"`
linux_root_device_thisversion="${LINUX_ROOT_DEVICE}"
initrd=
for i in "initrd.img-${version}" "initrd-${version}.img" \
"initrd-${version}" "initrd.img-${alt_version}" \
"initrd-${alt_version}.img" "initrd-${alt_version}"; do
if test -e "${dirname}/${i}" ; then
initrd="$i"
break
fi
done
if test -n "${initrd}" ; then
echo "Found initrd image: ${dirname}/${initrd}" >&2
else
# "UUID=" magic is parsed by initrds. Since there's no initrd, it can't work here.
linux_root_device_thisversion=${GRUB_DEVICE}
fi
linux_entry "${OS}" "${version}" false \
"${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}"
if [ "x${GRUB_DISABLE_LINUX_RECOVERY}" != "xtrue" ]; then
linux_entry "${OS}" "${version}" true \
"single ${GRUB_CMDLINE_LINUX}"
fi
list=`echo $list | tr ' ' '\n' | grep -vx $linux | tr '\n' ' '`
done
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#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by /sbin/grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_fonts ###
### END /etc/grub.d/00_fonts ###
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="${saved_entry}"
if [ ${prev_saved_entry} ]; then
set saved_entry=${prev_saved_entry}
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z ${boot_once} ]; then
saved_entry=${chosen}
save_env saved_entry
fi
}
if sleep --interruptible 0 ; then
set timeout=10
fi
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/05_distro_theme ###
set menu_color_normal=cyan/blue
set menu_color_highlight=white/blue
### END /etc/grub.d/05_distro_theme ###
### BEGIN /etc/grub.d/10_linux ###
menuentry "Windows 7 64 bit" {
insmod chain
insmod ntfs
set root=(hd0,1)
chainloader +1
}
menuentry "Slackware64 13.1" --class gnu-linux --class gnu --class os {
insmod ext2
set root='(hd0,6)'
search --no-floppy --fs-uuid --set 626ee255-9a59-486e-bd69-2b90953ca092
echo Loading Linux 2.6.33.4 ...
set gfxpayload=1024x768x16
linux /boot/vmlinuz-huge-2.6.33.4 root=/dev/sda6
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/30_os-prober ###
### 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 ###
Scorpion77