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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/>.
prefix="/usr"
exec_prefix="/usr"
datarootdir="/usr/share"
grub_lang=`echo $LANG | cut -d . -f 1`
grubdir="`echo "/boot/grub" | sed 's,//*,/,g'`"
quick_boot="1"
export TEXTDOMAIN=grub
export TEXTDOMAINDIR="${datarootdir}/locale"
. "$pkgdatadir/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=auto ; 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
set have_grubenv=true
load_env
fi
EOF
cat <<EOF
if [ "\${initrdfail}" = 2 ]; then
set initrdfail=
elif [ "\${initrdfail}" = 1 ]; then
set next_entry="\${prev_entry}"
set prev_entry=
save_env prev_entry
if [ "\${next_entry}" ]; then
set initrdfail=2
fi
fi
EOF
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then
cat <<EOF
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then
set default="${GRUB_DEFAULT_BUTTON}"
elif [ "\${next_entry}" ] ; then
set default="\${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="${GRUB_DEFAULT}"
fi
EOF
else
cat <<EOF
if [ "\${next_entry}" ] ; then
set default="\${next_entry}"
set next_entry=
save_env next_entry
set boot_once=true
else
set default="${GRUB_DEFAULT}"
fi
EOF
fi
cat <<EOF
if [ x"\${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
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
cat <<"EOF"
function initrdfail {
if [ -n "${have_grubenv}" ]; then if [ -n "${partuuid}" ]; then
if [ -z "${initrdfail}" ]; then
set initrdfail=1
if [ -n "${boot_once}" ]; then
set prev_entry="${default}"
save_env prev_entry
fi
fi
save_env initrdfail
fi; fi
}
EOF
if [ "$quick_boot" = 1 ]; then
cat <<EOF
function recordfail {
set recordfail=1
EOF
check_writable () {
abstractions="$(grub-probe --target=abstraction "${grubdir}")"
for abstraction in $abstractions; do
case "$abstraction" in
diskfilter | lvm)
cat <<EOF
# GRUB lacks write support for $abstraction, so recordfail support is disabled.
EOF
return 1
;;
esac
done
FS="$(grub-probe --target=fs "${grubdir}")"
case "$FS" in
btrfs | cpiofs | newc | odc | romfs | squash4 | tarfs | zfs)
cat <<EOF
# GRUB lacks write support for $FS, so recordfail support is disabled.
EOF
return 1
;;
esac
cat <<EOF
if [ -n "\${have_grubenv}" ]; then if [ -z "\${boot_once}" ]; then save_env recordfail; fi; fi
EOF
}
if ! check_writable; then
recordfail_broken=1
fi
cat <<EOF
}
EOF
fi
cat <<EOF
function load_video {
EOF
if [ -n "${GRUB_VIDEO_BACKEND}" ]; then
cat <<EOF
insmod ${GRUB_VIDEO_BACKEND}
EOF
else
# If all_video.mod isn't available load all modules available
# with versions prior to introduction of all_video.mod
cat <<EOF
if [ x\$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
EOF
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 [ "x${GRUB_SERIAL_COMMAND}" = "x" ] ; then
grub_warn "$(gettext "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
if [ -n "$GRUB_FONT" ] ; then
# Make the font accessible
prepare_grub_to_access_device `${grub_probe} --target=device "${GRUB_FONT}"`
cat << EOF
if loadfont `make_system_path_relative_to_its_root "${GRUB_FONT}"` ; then
EOF
else
for dir in "${pkgdatadir}" "`echo '/boot/grub' | sed "s,//*,/,g"`" /usr/share/grub ; do
for basename in unicode unifont ascii; do
path="${dir}/${basename}.pf2"
if is_path_readable_by_grub "${path}" > /dev/null ; then
font_path="${path}"
else
continue
fi
break 2
done
done
if [ -n "${font_path}" ] ; then
cat << EOF
if [ x\$feature_default_font_path = xy ] ; then
font=unicode
else
EOF
# Make the font accessible
prepare_grub_to_access_device `${grub_probe} --target=device "${font_path}"`
cat << EOF
font="`make_system_path_relative_to_its_root "${font_path}"`"
fi
if loadfont \$font ; then
EOF
else
cat << EOF
if loadfont unicode ; then
EOF
fi
fi
cat << EOF
set gfxmode=${GRUB_GFXMODE}
load_video
insmod gfxterm
EOF
# Gettext variables and module
if [ "x${grub_lang}" != "xC" ] && [ "x${LANG}" != "xPOSIX" ] && [ "x${LANG}" != "x" ]; then
cat << EOF
set locale_dir=\$prefix/locale
set lang=${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 "$GRUB_THEME"; then
gettext_printf "Found theme: %s\n" "$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 $GRUB_THEME`
export theme
EOF
elif [ "x$GRUB_BACKGROUND" != x ] && [ -f "$GRUB_BACKGROUND" ] \
&& is_path_readable_by_grub "$GRUB_BACKGROUND"; then
gettext_printf "Found background: %s\n" "$GRUB_BACKGROUND" >&2
case "$GRUB_BACKGROUND" in
*.png) reader=png ;;
*.tga) reader=tga ;;
*.jpg|*.jpeg) reader=jpeg ;;
*) gettext "Unsupported image format" >&2; echo >&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 ()
{
cat << EOF
if [ "\${recordfail}" = 1 ] ; then
set timeout=${GRUB_RECORDFAIL_TIMEOUT:-30}
else
EOF
if [ "x${3}" != "x" ] ; then
timeout="${2}"
style="${3}"
elif [ "x${1}" != "x" ] && \
([ "$quick_boot" = 1 ] || [ "x${1}" != "x0" ]) ; then
# Handle the deprecated GRUB_HIDDEN_TIMEOUT scheme.
timeout="${1}"
if [ "x${2}" != "x0" ] ; then
grub_warn "$(gettext "Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.")"
fi
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then
style="hidden"
verbose=
else
style="countdown"
verbose=" --verbose"
fi
else
# No hidden timeout, so treat as GRUB_TIMEOUT_STYLE=menu
timeout="${2}"
style="menu"
fi
cat << EOF
if [ x\$feature_timeout_style = xy ] ; then
set timeout_style=${style}
set timeout=${timeout}
EOF
if [ "x${style}" = "xmenu" ] ; then
cat << EOF
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
set timeout=${timeout}
EOF
else
cat << EOF
# Fallback hidden-timeout code in case the timeout_style feature is
# unavailable.
elif sleep${verbose} --interruptible ${timeout} ; then
set timeout=0
EOF
fi
cat << EOF
fi
fi
EOF
if [ "$recordfail_broken" = 1 ]; then
cat << EOF
if [ \$grub_platform = efi ]; then
set timeout=${GRUB_RECORDFAIL_TIMEOUT:-30}
if [ x\$feature_timeout_style = xy ] ; then
set timeout_style=menu
fi
fi
EOF
fi
}
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then
cat <<EOF
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then
EOF
make_timeout "${GRUB_HIDDEN_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_STYLE_BUTTON}"
echo else
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" "${GRUB_TIMEOUT_STYLE}"
echo fi
else
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" "${GRUB_TIMEOUT_STYLE}"
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