300 lines
7.6 KiB
Bash
300 lines
7.6 KiB
Bash
#! /bin/sh
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set -e
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# Generate grub.cfg by inspecting /boot contents.
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# Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
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#
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# GRUB is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# GRUB is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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transform="@program_transform_name@"
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prefix="@prefix@"
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exec_prefix="@exec_prefix@"
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datarootdir="@datarootdir@"
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prefix="@prefix@"
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exec_prefix="@exec_prefix@"
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sbindir="@sbindir@"
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bindir="@bindir@"
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sysconfdir="@sysconfdir@"
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PACKAGE_NAME=@PACKAGE_NAME@
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PACKAGE_VERSION=@PACKAGE_VERSION@
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host_os=@host_os@
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datadir="@datadir@"
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pkgdatadir="${datadir}/`echo @PACKAGE_TARNAME@ | sed "${transform}"`"
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grub_cfg=""
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grub_mkconfig_dir="${sysconfdir}"/grub.d
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self=`basename $0`
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grub_probe="${sbindir}/`echo grub-probe | sed "${transform}"`"
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grub_script_check="${bindir}/`echo grub-script-check | sed "${transform}"`"
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GRUB_PREFIX=`echo '/@bootdirname@/@grubdirname@' | sed "s,//*,/,g"`
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# Usage: usage
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# Print the usage.
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usage () {
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cat <<EOF
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Usage: $self [OPTION]
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Generate a grub config file
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-o, --output=FILE output generated config to FILE [default=stdout]
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-h, --help print this message and exit
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-v, --version print the version information and exit
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Report bugs to <bug-grub@gnu.org>.
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EOF
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}
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argument () {
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opt=$1
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shift
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if test $# -eq 0; then
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echo "$0: option requires an argument -- '$opt'" 1>&2
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exit 1
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fi
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echo $1
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}
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# Check the arguments.
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while test $# -gt 0
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do
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option=$1
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shift
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case "$option" in
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-h | --help)
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usage
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exit 0 ;;
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-v | --version)
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echo "$self (${PACKAGE_NAME}) ${PACKAGE_VERSION}"
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exit 0 ;;
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-o | --output)
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grub_cfg=`argument $option "$@"`; shift;;
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--output=*)
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grub_cfg=`echo "$option" | sed 's/--output=//'`
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;;
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-*)
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echo "Unrecognized option \`$option'" 1>&2
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usage
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exit 1
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;;
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# Explicitly ignore non-option arguments, for compatibility.
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esac
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done
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. "${datadir}/@PACKAGE@/grub-mkconfig_lib"
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if [ "x$EUID" = "x" ] ; then
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EUID=`id -u`
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fi
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if [ "$EUID" != 0 ] ; then
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root=f
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case "`uname 2>/dev/null`" in
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CYGWIN*)
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# Cygwin: Assume root if member of admin group
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for g in `id -G 2>/dev/null` ; do
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case $g in
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0|544) root=t ;;
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esac
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done ;;
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esac
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if [ $root != t ] ; then
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echo "$self: You must run this as root" >&2
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exit 1
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fi
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fi
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set $grub_probe dummy
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if test -f "$1"; then
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:
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else
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echo "$1: Not found." 1>&2
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exit 1
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fi
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mkdir -p ${GRUB_PREFIX}
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# Device containing our userland. Typically used for root= parameter.
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GRUB_DEVICE="`${grub_probe} --target=device /`"
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GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
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# Device containing our /boot partition. Usually the same as GRUB_DEVICE.
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GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`"
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GRUB_DEVICE_BOOT_UUID="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true
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# Filesystem for the device containing our userland. Used for stuff like
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# choosing Hurd filesystem module.
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GRUB_FS="`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2> /dev/null || echo unknown`"
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if test -f ${sysconfdir}/default/grub ; then
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. ${sysconfdir}/default/grub
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fi
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# XXX: should this be deprecated at some point?
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if [ "x${GRUB_TERMINAL}" != "x" ] ; then
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GRUB_TERMINAL_INPUT="${GRUB_TERMINAL}"
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GRUB_TERMINAL_OUTPUT="${GRUB_TERMINAL}"
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fi
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termoutdefault=0
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if [ "x${GRUB_TERMINAL_OUTPUT}" = "x" ]; then
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GRUB_TERMINAL_OUTPUT=gfxterm;
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termoutdefault=1;
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fi
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for x in ${GRUB_TERMINAL_OUTPUT}; do
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if [ "x${x}" = "xgfxterm" ]; then
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if [ -n "$GRUB_FONT" ] ; then
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if is_path_readable_by_grub ${GRUB_FONT} > /dev/null ; then
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GRUB_FONT_PATH=${GRUB_FONT}
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else
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echo "No such font or not readable by grub: ${GRUB_FONT}" >&2
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exit 1
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fi
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else
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for dir in ${pkgdatadir} ${GRUB_PREFIX} /usr/share/grub ; do
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for basename in unicode unifont ascii; do
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path="${dir}/${basename}.pf2"
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if is_path_readable_by_grub ${path} > /dev/null ; then
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GRUB_FONT_PATH=${path}
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else
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continue
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fi
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if [ "${basename}" = "ascii" ] ; then
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# make sure all our children behave in conformance with ascii..
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export LANG=C
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fi
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break 2
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done
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done
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fi
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if [ -z "${GRUB_FONT_PATH}" ] ; then
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if [ "x$termoutdefault" != "x1" ]; then
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echo "No font for gfxterm found." >&2 ; exit 1
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fi
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GRUB_TERMINAL_OUTPUT=
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fi
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fi
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done
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for x in ${GRUB_TERMINAL_OUTPUT}; do
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case "x${x}" in
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xgfxterm) ;;
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xconsole | xserial | xofconsole)
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# make sure all our children behave in conformance with ascii..
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export LANG=C;;
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*) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;;
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esac
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done
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# These are defined in this script, export them here so that user can
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# override them.
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export GRUB_DEVICE \
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GRUB_DEVICE_UUID \
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GRUB_DEVICE_BOOT \
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GRUB_DEVICE_BOOT_UUID \
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GRUB_FS \
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GRUB_FONT_PATH \
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GRUB_PRELOAD_MODULES \
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GRUB_PREFIX
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# These are optional, user-defined variables.
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export GRUB_DEFAULT \
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GRUB_HIDDEN_TIMEOUT \
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GRUB_HIDDEN_TIMEOUT_QUIET \
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GRUB_TIMEOUT \
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GRUB_DEFAULT_BUTTON \
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GRUB_HIDDEN_TIMEOUT_BUTTON \
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GRUB_TIMEOUT_BUTTON \
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GRUB_BUTTON_CMOS_ADDRESS \
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GRUB_BUTTON_CMOS_CLEAN \
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GRUB_DISTRIBUTOR \
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GRUB_CMDLINE_LINUX \
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GRUB_CMDLINE_LINUX_DEFAULT \
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GRUB_CMDLINE_XEN \
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GRUB_CMDLINE_XEN_DEFAULT \
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GRUB_CMDLINE_LINUX_XEN_REPLACE \
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GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT \
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GRUB_CMDLINE_NETBSD \
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GRUB_CMDLINE_NETBSD_DEFAULT \
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GRUB_TERMINAL_INPUT \
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GRUB_TERMINAL_OUTPUT \
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GRUB_SERIAL_COMMAND \
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GRUB_DISABLE_LINUX_UUID \
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GRUB_DISABLE_RECOVERY \
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GRUB_VIDEO_BACKEND \
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GRUB_GFXMODE \
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GRUB_BACKGROUND \
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GRUB_THEME \
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GRUB_GFXPAYLOAD_LINUX \
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GRUB_DISABLE_OS_PROBER \
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GRUB_INIT_TUNE \
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GRUB_SAVEDEFAULT \
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GRUB_ENABLE_CRYPTODISK \
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GRUB_BADRAM
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if test "x${grub_cfg}" != "x"; then
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rm -f ${grub_cfg}.new
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exec > ${grub_cfg}.new
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# Allow this to fail, since /boot/grub/ might need to be fatfs to support some
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# firmware implementations (e.g. OFW or EFI).
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chmod 400 ${grub_cfg}.new || grub_warn "Could not make ${grub_cfg}.new readable by only root.\
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This means that if the generated config contains a password it is readable by everyone"
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fi
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echo "Generating grub.cfg ..." >&2
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cat << EOF
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#
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# DO NOT EDIT THIS FILE
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#
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# It is automatically generated by $self using templates
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# from ${grub_mkconfig_dir} and settings from ${sysconfdir}/default/grub
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#
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EOF
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for i in ${grub_mkconfig_dir}/* ; do
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case "$i" in
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# emacsen backup files. FIXME: support other editors
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*~) ;;
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# emacsen autosave files. FIXME: support other editors
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\#*\#) ;;
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*)
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if grub_file_is_not_garbage "$i" && test -x "$i" ; then
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echo
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echo "### BEGIN $i ###"
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"$i"
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echo "### END $i ###"
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fi
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;;
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esac
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done
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if test "x${grub_cfg}" != "x" ; then
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if ! ${grub_script_check} ${grub_cfg}.new; then
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echo "Syntax errors are detected in generated GRUB config file." >&2
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echo "Ensure that there are no errors in /etc/default/grub" >&2
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echo "and /etc/grub.d/* files or please file a bug report with" >&2
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echo "${grub_cfg}.new file attached." >&2
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else
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# none of the children aborted with error, install the new grub.cfg
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mv -f ${grub_cfg}.new ${grub_cfg}
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fi
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fi
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echo "done" >&2
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