145 lines
3.9 KiB
Bash
145 lines
3.9 KiB
Bash
#! /bin/sh
|
|
#
|
|
# Set a default boot entry for GRUB, for the next boot only.
|
|
# Copyright (C) 2004,2009 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/>.
|
|
|
|
# Initialize some variables.
|
|
transform="@program_transform_name@"
|
|
|
|
prefix=@prefix@
|
|
exec_prefix=@exec_prefix@
|
|
bindir=@bindir@
|
|
PACKAGE_NAME=@PACKAGE_NAME@
|
|
PACKAGE_VERSION=@PACKAGE_VERSION@
|
|
datarootdir="@datarootdir@"
|
|
datadir="@datadir@"
|
|
if [ "x$pkgdatadir" = x ]; then
|
|
pkgdatadir="${datadir}/@PACKAGE@"
|
|
fi
|
|
|
|
self=`basename $0`
|
|
|
|
grub_editenv=${bindir}/`echo grub-editenv | sed ${transform}`
|
|
rootdir=
|
|
bootdir=
|
|
grubdir=`echo "/@bootdirname@/@grubdirname@" | sed 's,//*,/,g'`
|
|
|
|
export TEXTDOMAIN=@PACKAGE@
|
|
export TEXTDOMAINDIR="@localedir@"
|
|
|
|
. "${pkgdatadir}/grub-mkconfig_lib"
|
|
|
|
# Usage: usage
|
|
# Print the usage.
|
|
usage () {
|
|
gettext_printf "Usage: %s [OPTION] MENU_ENTRY\n" "$self"
|
|
gettext "Set the default boot menu entry for GRUB, for the next boot only."; echo
|
|
echo
|
|
printf " -h, --help %s\n" "$(gettext "print this message and exit")"
|
|
printf " -v, --version %s\n" "$(gettext "print the version information and exit")"
|
|
dirmsg="$(gettext_printf "expect GRUB images under the directory DIR/%s instead of the %s directory" "@grubdirname@" "$grubdir")"
|
|
printf " --boot-directory=%-7s%s\n" "$(gettext "DIR")" "$dirmsg"
|
|
echo
|
|
gettext "MENU_ENTRY is a number, a menu item title or a menu item identifier."; echo
|
|
echo
|
|
gettext "Report bugs to <bug-grub@gnu.org>."; echo
|
|
}
|
|
|
|
argument () {
|
|
opt=$1
|
|
shift
|
|
|
|
if test $# -eq 0; then
|
|
gettext_printf "%s: option requires an argument -- \`%s'\n" "$0" "$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 ;;
|
|
|
|
# Accept for compatibility
|
|
--root-directory)
|
|
rootdir=`argument $option "$@"`; shift ;;
|
|
--root-directory=*)
|
|
rootdir=`echo "$option" | sed 's/--root-directory=//'` ;;
|
|
|
|
--boot-directory)
|
|
bootdir=`argument $option "$@"`; shift;;
|
|
--boot-directory=*)
|
|
bootdir=`echo "$option" | sed 's/--boot-directory=//'` ;;
|
|
|
|
-*)
|
|
gettext_printf "Unrecognized option \`%s'\n" "$option" 1>&2
|
|
usage
|
|
exit 1
|
|
;;
|
|
*)
|
|
if test "x$entry" != x; then
|
|
gettext "More than one menu entry?" 1>&2
|
|
echo >&2
|
|
usage
|
|
exit 1
|
|
fi
|
|
entry="${option}" ;;
|
|
esac
|
|
done
|
|
|
|
if test "x$entry" = x; then
|
|
gettext "Menu entry not specified." 1>&2
|
|
echo >&2
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
if [ -z "$bootdir" ]; then
|
|
# Default bootdir if bootdir not initialized.
|
|
bootdir=/@bootdirname@
|
|
|
|
if [ -n "$rootdir" ] ; then
|
|
# Initialize bootdir if rootdir was initialized.
|
|
bootdir=${rootdir}/@bootdirname@
|
|
fi
|
|
fi
|
|
|
|
grubdir=`echo "${bootdir}/@grubdirname@" | sed 's,//*,/,g'`
|
|
|
|
prev_saved_entry=`$grub_editenv ${grubdir}/grubenv list | sed -n 's/^saved_entry=//p'`
|
|
if [ "$prev_saved_entry" ]; then
|
|
$grub_editenv ${grubdir}/grubenv set prev_saved_entry="$prev_saved_entry"
|
|
else
|
|
# We need some non-empty value for prev_saved_entry so that GRUB will
|
|
# recognise that grub-reboot has been used and restore the previous
|
|
# saved entry. "0" is the same as an empty value, i.e. the first menu
|
|
# entry.
|
|
$grub_editenv ${grubdir}/grubenv set prev_saved_entry=0
|
|
fi
|
|
$grub_editenv ${grubdir}/grubenv set saved_entry="$entry"
|
|
|
|
# Bye.
|
|
exit 0
|