192 lines
4.9 KiB
Bash
192 lines
4.9 KiB
Bash
#! /bin/sh -e
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# Generate grub.cfg by inspecting /boot contents.
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# Copyright (C) 2006,2007,2008 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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sbindir=@sbindir@
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libdir=@libdir@
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sysconfdir=@sysconfdir@
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grub_prefix=`echo /boot/grub | sed ${transform}`
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grub_cfg=${grub_prefix}/grub.cfg
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update_grub_dir=${sysconfdir}/grub.d
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platform=@platform@
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grub_mkdevicemap=${sbindir}/`echo grub-mkdevicemap | sed ${transform}`
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grub_probe=${sbindir}/`echo grub-probe | sed ${transform}`
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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: $0 [OPTION]
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Generate /boot/grub/grub.cfg
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-h, --help print this message and exit
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-v, --version print the version information and exit
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-y ignored for compatibility
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Report bugs to <bug-grub@gnu.org>.
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EOF
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}
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# Check the arguments.
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for option in "$@"; do
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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 "$0 (GNU GRUB ${PACKAGE_VERSION})"
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exit 0 ;;
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-y)
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echo "$0: warning: Ignoring -y option (no longer needed)." >&2
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;;
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-*)
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echo "Unrecognized option \`$option'" 1>&2
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usage
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exit 1
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;;
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esac
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done
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. ${libdir}/grub/update-grub_lib
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if [ "x$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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echo "$0: You must run this as root" >&2
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exit 1
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fi
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set $grub_mkdevicemap 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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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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if test -e ${grub_prefix}/device.map ; then : ; else
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grub-mkdevicemap
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fi
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# Device containing our userland. Typically used for root= parameter.
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GRUB_DEVICE="`${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} --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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# if ${GRUB_TERMINAL} is set, check it has a sane value. if undefined,
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# fallback to our default
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case ${platform}:${GRUB_TERMINAL} in
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pc:) GRUB_TERMINAL=gfxterm ;;
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ieee1275:) GRUB_TERMINAL=ofconsole ;;
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*:) GRUB_TERMINAL=console ;;
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pc:console | pc:serial | ieee1275:ofconsole | ieee1275:console | *:gfxterm)
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;;
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*:*) echo "Invalid terminal \"${GRUB_TERMINAL}\"" >&2 ; exit 1 ;;
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esac
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# check for terminals that require fonts
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case ${GRUB_TERMINAL} in
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gfxterm)
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if path=`font_path` ; then
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GRUB_FONT_PATH="${path}"
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else
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# fallback to console
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GRUB_TERMINAL=console
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fi
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;;
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esac
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# does our terminal support utf-8 ?
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case ${platform}:${GRUB_TERMINAL} in
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*:gfxterm) ;;
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*:*)
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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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;;
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esac
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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 GRUB_DEVICE_UUID GRUB_DEVICE_BOOT GRUB_DEVICE_BOOT_UUID GRUB_FS GRUB_FONT_PATH GRUB_PRELOAD_MODULES
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# These are optional, user-defined variables.
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export GRUB_DEFAULT GRUB_TIMEOUT GRUB_DISTRIBUTOR GRUB_CMDLINE_LINUX GRUB_CMDLINE_LINUX_DEFAULT GRUB_TERMINAL GRUB_SERIAL_COMMAND GRUB_DISABLE_LINUX_UUID
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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 444 ${grub_cfg}.new || true
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echo "Updating ${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 $0 using templates
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# from ${update_grub_dir} and settings from ${sysconfdir}/default/grub
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#
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EOF
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for i in ${update_grub_dir}/* ; do
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case "$i" in
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# emacsen backup files. FIXME: support other editors
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*~) ;;
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*)
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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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# none of the children aborted with error, install the new grub.cfg
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mv ${grub_cfg}.new ${grub_cfg}
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echo "done" >&2
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