grub/util/grub.d/00_header.in

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#! /bin/sh
set -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="@program_transform_name@"
prefix=@prefix@
exec_prefix=@exec_prefix@
libdir=@libdir@
locale_dir=`echo ${GRUB_PREFIX}/locale | sed ${transform}`
grub_lang=`echo $LANG | cut -d . -f 1`
. ${libdir}/@PACKAGE@/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
if [ "x${GRUB_DEFAULT_BUTTON}" = "x" ] ; then GRUB_DEFAULT_BUTTON="$GRUB_DEFAULT" ; fi
if [ "x${GRUB_DEFAULT_BUTTON}" = "xsaved" ] ; then GRUB_DEFAULT_BUTTON='${saved_entry}' ; fi
if [ "x${GRUB_TIMEOUT_BUTTON}" = "x" ] ; then GRUB_TIMEOUT_BUTTON="$GRUB_TIMEOUT" ; fi
cat << EOF
if [ -s \$prefix/grubenv ]; then
load_env
fi
EOF
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then
cat <<EOF
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then
set default="${GRUB_DEFAULT_BUTTON}"
else
set default="${GRUB_DEFAULT}"
fi
EOF
else
cat <<EOF
set default="${GRUB_DEFAULT}"
EOF
fi
cat <<EOF
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
}
function load_video {
EOF
if [ -n "${GRUB_VIDEO_BACKEND}" ]; then
cat <<EOF
insmod ${GRUB_VIDEO_BACKEND}
EOF
else
# Insert all available backends; GRUB will use the most appropriate.
have_video=0;
for backend in $(cat "${GRUB_PREFIX}/video.lst"); do
have_video=1;
cat <<EOF
insmod ${backend}
EOF
done
if [ x$have_video = x0 ]; then
echo "true"
fi
fi
cat <<EOF
}
EOF
serial=0;
gfxterm=0;
for x in ${GRUB_TERMINAL_INPUT} ${GRUB_TERMINAL_OUTPUT}; do
if [ xserial = "x$x" ]; then
serial=1;
fi
if [ xgfxterm = "x$x" ]; then
gfxterm=1;
fi
done
if [ "x$serial" = x1 ]; then
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 "${GRUB_SERIAL_COMMAND}"
fi
if [ "x$gfxterm" = x1 ]; then
# 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}
load_video
insmod gfxterm
EOF
# Gettext variables and module
if [ "x${LANG}" != "xC" ] && [ -d "${locale_dir}" ] ; then
prepare_grub_to_access_device $(${grub_probe} --target=device ${locale_dir}) | sed -e "s/^/ /"
cat << EOF
set locale_dir=(\$root)$(make_system_path_relative_to_its_root ${locale_dir})
set lang=${grub_lang}
insmod gettext
EOF
fi
cat <<EOF
fi
EOF
fi
case x${GRUB_TERMINAL_INPUT} in
x)
# Just use the native terminal
;;
x*)
cat << EOF
terminal_input ${GRUB_TERMINAL_INPUT}
EOF
;;
esac
case x${GRUB_TERMINAL_OUTPUT} in
x)
# Just use the native terminal
;;
x*)
cat << EOF
terminal_output ${GRUB_TERMINAL_OUTPUT}
EOF
;;
esac
if [ "x$gfxterm" = x1 ]; then
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 "$GRUB_THEME"`
cat << EOF
insmod gfxmenu
EOF
themedir="`dirname "$GRUB_THEME"`"
for x in "$themedir"/*.pf2 "$themedir"/f/*.pf2; do
if [ -f "$x" ]; then
cat << EOF
loadfont (\$root)`make_system_path_relative_to_its_root $x`
EOF
fi
done
if [ x"`echo "$themedir"/*.jpg`" != x"$themedir/*.jpg" ] || [ x"`echo "$themedir"/*.jpeg`" != x"$themedir/*.jpeg" ]; then
cat << EOF
insmod jpeg
EOF
fi
if [ x"`echo "$themedir"/*.png`" != x"$themedir/*.png" ]; then
cat << EOF
insmod png
EOF
fi
if [ x"`echo "$themedir"/*.tga`" != x"$themedir/*.tga" ]; then
cat << EOF
insmod tga
EOF
fi
cat << EOF
set theme=(\$root)`make_system_path_relative_to_its_root $GRUB_THEME`
EOF
elif [ "x$GRUB_BACKGROUND" != x ] && [ -f "$GRUB_BACKGROUND" ] \
&& is_path_readable_by_grub "$GRUB_BACKGROUND"; then
echo "Found background: $GRUB_BACKGROUND" >&2
case "$GRUB_BACKGROUND" in
*.png) reader=png ;;
*.tga) reader=tga ;;
*.jpg|*.jpeg) reader=jpeg ;;
*) echo "Unsupported image format" >&2; exit 1 ;;
esac
prepare_grub_to_access_device `${grub_probe} --target=device "$GRUB_BACKGROUND"`
cat << EOF
insmod $reader
background_image -m stretch `make_system_path_relative_to_its_root "$GRUB_BACKGROUND"`
EOF
fi
fi
make_timeout ()
{
if [ "x${1}" != "x" ] ; then
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then
verbose=
else
verbose=" --verbose"
fi
cat << EOF
if sleep$verbose --interruptible ${1} ; then
set timeout=${2}
fi
EOF
else
cat << EOF
set timeout=${2}
EOF
fi
}
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then
cat <<EOF
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then
EOF
make_timeout "${GRUB_HIDDEN_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_BUTTON}"
echo else
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}"
echo fi
else
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}"
fi
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ] && [ "x$GRUB_BUTTON_CMOS_CLEAN" = "xyes" ]; then
cat <<EOF
cmosclean $GRUB_BUTTON_CMOS_ADDRESS
EOF
fi
# Play an initial tune
if [ "x${GRUB_INIT_TUNE}" != "x" ] ; then
echo "play ${GRUB_INIT_TUNE}"
fi
if [ "x${GRUB_BADRAM}" != "x" ] ; then
echo "badram ${GRUB_BADRAM}"
fi