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Diffstat (limited to 'util/grub-mkconfig.in')
| -rw-r--r-- | util/grub-mkconfig.in | 308 |
1 files changed, 308 insertions, 0 deletions
diff --git a/util/grub-mkconfig.in b/util/grub-mkconfig.in new file mode 100644 index 0000000..afc66f8 --- /dev/null +++ b/util/grub-mkconfig.in @@ -0,0 +1,308 @@ +#! /bin/sh +set -e + +# Generate grub.cfg by inspecting /boot contents. +# 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@ +sbindir=@sbindir@ +bindir=@bindir@ +libdir=@libdir@ +sysconfdir=@sysconfdir@ +PACKAGE_NAME=@PACKAGE_NAME@ +PACKAGE_VERSION=@PACKAGE_VERSION@ +host_os=@host_os@ +datarootdir=@datarootdir@ +datadir=@datadir@ +pkgdatadir=${datadir}/`echo @PACKAGE_TARNAME@ | sed "${transform}"` +grub_cfg="" +grub_mkconfig_dir=${sysconfdir}/grub.d + +self=`basename $0` + +grub_mkdevicemap=${sbindir}/`echo grub-mkdevicemap | sed "${transform}"` +grub_probe=${sbindir}/`echo grub-probe | sed "${transform}"` +grub_script_check="${bindir}/`echo grub-script-check | sed "${transform}"`" + +GRUB_PREFIX=`echo '/@bootdirname@/@grubdirname@' | sed "s,//*,/,g"` + +# Usage: usage +# Print the usage. +usage () { + cat <<EOF +Usage: $self [OPTION] +Generate a grub config file + + -o, --output=FILE output generated config to FILE [default=stdout] + -h, --help print this message and exit + -v, --version print the version information and exit + +Report bugs to <bug-grub@gnu.org>. +EOF +} + +argument () { + opt=$1 + shift + + if test $# -eq 0; then + echo "$0: option requires an argument -- '$opt'" 1>&2 + exit 1 + fi + echo $1 +} + +# Check the arguments. +while test $# -gt 0 +do + option=$1 + shift + + case "$option" in + -h | --help) + usage + exit 0 ;; + -v | --version) + echo "$self (${PACKAGE_NAME}) ${PACKAGE_VERSION}" + exit 0 ;; + -o | --output) + grub_cfg=`argument $option "$@"`; shift;; + --output=*) + grub_cfg=`echo "$option" | sed 's/--output=//'` + ;; + -*) + echo "Unrecognized option \`$option'" 1>&2 + usage + exit 1 + ;; + # Explicitly ignore non-option arguments, for compatibility. + esac +done + +. ${libdir}/grub/grub-mkconfig_lib + +if [ "x$EUID" = "x" ] ; then + EUID=`id -u` +fi + +if [ "$EUID" != 0 ] ; then + root=f + case "`uname 2>/dev/null`" in + CYGWIN*) + # Cygwin: Assume root if member of admin group + for g in `id -G 2>/dev/null` ; do + case $g in + 0|544) root=t ;; + esac + done ;; + esac + if [ $root != t ] ; then + echo "$self: You must run this as root" >&2 + exit 1 + fi +fi + +set $grub_mkdevicemap dummy +if test -f "$1"; then + : +else + echo "$1: Not found." 1>&2 + exit 1 +fi + +set $grub_probe dummy +if test -f "$1"; then + : +else + echo "$1: Not found." 1>&2 + exit 1 +fi + +mkdir -p ${GRUB_PREFIX} + +if test -e ${GRUB_PREFIX}/device.map ; then : ; else + ${grub_mkdevicemap} +fi + +# Device containing our userland. Typically used for root= parameter. +GRUB_DEVICE="`${grub_probe} --target=device /`" +GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true + +# Device containing our /boot partition. Usually the same as GRUB_DEVICE. +GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`" +GRUB_DEVICE_BOOT_UUID="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true + +# Filesystem for the device containing our userland. Used for stuff like +# choosing Hurd filesystem module. +GRUB_FS="`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2> /dev/null || echo unknown`" + +if test -f ${sysconfdir}/default/grub ; then + . ${sysconfdir}/default/grub +fi + +# XXX: should this be deprecated at some point? +if [ "x${GRUB_TERMINAL}" != "x" ] ; then + GRUB_TERMINAL_INPUT="${GRUB_TERMINAL}" + GRUB_TERMINAL_OUTPUT="${GRUB_TERMINAL}" +fi + +termoutdefault=0 +if [ "x${GRUB_TERMINAL_OUTPUT}" = "x" ]; then + GRUB_TERMINAL_OUTPUT=gfxterm; + termoutdefault=1; +fi + +for x in ${GRUB_TERMINAL_OUTPUT}; do + if [ "x${x}" = "xgfxterm" ]; then + if [ -n "$GRUB_FONT" ] ; then + if is_path_readable_by_grub ${GRUB_FONT} > /dev/null ; then + GRUB_FONT_PATH=${GRUB_FONT} + else + echo "No such font or not readable by grub: ${GRUB_FONT}" >&2 + exit 1 + fi + else + for dir in ${pkgdatadir} ${GRUB_PREFIX} /usr/share/grub ; do + for basename in unicode unifont ascii; do + path="${dir}/${basename}.pf2" + if is_path_readable_by_grub ${path} > /dev/null ; then + GRUB_FONT_PATH=${path} + else + continue + fi + if [ "${basename}" = "ascii" ] ; then + # make sure all our children behave in conformance with ascii.. + export LANG=C + fi + break 2 + done + done + fi + if [ -z "${GRUB_FONT_PATH}" ] ; then + if [ "x$termoutdefault" != "x1" ]; then + echo "No font for gfxterm found." >&2 ; exit 1 + fi + GRUB_TERMINAL_OUTPUT= + fi + fi +done + +for x in ${GRUB_TERMINAL_OUTPUT}; do + case "x${x}" in + xgfxterm) ;; + xconsole | xserial | xofconsole) + # make sure all our children behave in conformance with ascii.. + export LANG=C;; + *) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;; + esac +done + +# These are defined in this script, export them here so that user can +# override them. +export GRUB_DEVICE \ + GRUB_DEVICE_UUID \ + GRUB_DEVICE_BOOT \ + GRUB_DEVICE_BOOT_UUID \ + GRUB_FS \ + GRUB_FONT_PATH \ + GRUB_PRELOAD_MODULES \ + GRUB_PREFIX + +# These are optional, user-defined variables. +export GRUB_DEFAULT \ + GRUB_HIDDEN_TIMEOUT \ + GRUB_HIDDEN_TIMEOUT_QUIET \ + GRUB_TIMEOUT \ + GRUB_DEFAULT_BUTTON \ + GRUB_HIDDEN_TIMEOUT_BUTTON \ + GRUB_TIMEOUT_BUTTON \ + GRUB_BUTTON_CMOS_ADDRESS \ + GRUB_BUTTON_CMOS_CLEAN \ + GRUB_DISTRIBUTOR \ + GRUB_CMDLINE_LINUX \ + GRUB_CMDLINE_LINUX_DEFAULT \ + GRUB_CMDLINE_XEN \ + GRUB_CMDLINE_XEN_DEFAULT \ + GRUB_CMDLINE_NETBSD \ + GRUB_CMDLINE_NETBSD_DEFAULT \ + GRUB_TERMINAL_INPUT \ + GRUB_TERMINAL_OUTPUT \ + GRUB_SERIAL_COMMAND \ + GRUB_DISABLE_LINUX_UUID \ + GRUB_DISABLE_RECOVERY \ + GRUB_VIDEO_BACKEND \ + GRUB_GFXMODE \ + GRUB_BACKGROUND \ + GRUB_THEME \ + GRUB_GFXPAYLOAD_LINUX \ + GRUB_DISABLE_OS_PROBER \ + GRUB_INIT_TUNE \ + GRUB_SAVEDEFAULT \ + GRUB_BADRAM + +if test "x${grub_cfg}" != "x"; then + rm -f ${grub_cfg}.new + exec > ${grub_cfg}.new + + # Allow this to fail, since /boot/grub/ might need to be fatfs to support some + # firmware implementations (e.g. OFW or EFI). + chmod 400 ${grub_cfg}.new || grub_warn "Could not make ${grub_cfg}.new readable by only root.\ + This means that if the generated config contains a password it is readable by everyone" +fi +echo "Generating grub.cfg ..." >&2 + +cat << EOF +# +# DO NOT EDIT THIS FILE +# +# It is automatically generated by $self using templates +# from ${grub_mkconfig_dir} and settings from ${sysconfdir}/default/grub +# +EOF + +for i in ${grub_mkconfig_dir}/* ; do + case "$i" in + # emacsen backup files. FIXME: support other editors + *~) ;; + # emacsen autosave files. FIXME: support other editors + \#*\#) ;; + *) + if grub_file_is_not_garbage "$i" && test -x "$i" ; then + echo + echo "### BEGIN $i ###" + "$i" + echo "### END $i ###" + fi + ;; + esac +done + +if test "x${grub_cfg}" != "x" ; then + if ! ${grub_script_check} ${grub_cfg}.new; then + echo "Syntax errors are detected in generated GRUB config file." >&2 + echo "Ensure that there are no errors in /etc/default/grub" >&2 + echo "and /etc/grub.d/* files or please file a bug report with" >&2 + echo "${grub_cfg}.new file attached." >&2 + else + # none of the children aborted with error, install the new grub.cfg + mv -f ${grub_cfg}.new ${grub_cfg} + fi +fi + +echo "done" >&2 |