#! /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. prefix=/usr exec_prefix=/usr bindir=/usr/bin sysconfdir="/etc" PACKAGE_NAME=GRUB PACKAGE_VERSION=2.02~beta2 datarootdir="/usr/share" datadir="/usr/share" if [ "x$pkgdatadir" = x ]; then pkgdatadir="${datadir}/grub" fi self=`basename $0` grub_editenv=${bindir}/grub2-editenv rootdir= bootdir= grubdir=`echo "/boot/grub2" | sed 's,//*,/,g'` export TEXTDOMAIN=grub export TEXTDOMAINDIR="${datarootdir}/locale" . "${pkgdatadir}/grub-mkconfig_lib" # Usage: usage # Print the usage. usage () { gettext_printf "Usage: %s [OPTION] MENU_ENTRY\n" "$self" gettext "Set the default boot menu entry for GRUB, for the next boot only."; echo print_option_help "-h, --help" "$(gettext "print this message and exit")" print_option_help "-v, --version" "$(gettext "print the version information and exit")" dirmsg="$(gettext_printf "expect GRUB images under the directory DIR/%s instead of the %s directory" "grub2" "$grubdir")" print_option_help "--boot-directory=$(gettext "DIR")" "$dirmsg" echo gettext "MENU_ENTRY is a number, a menu item title or a menu item identifier. Please note that menu items in submenus or sub-submenus require specifying the submenu components and then the menu item component. The titles should be separated using the greater-than character (>) with no extra spaces. Depending on your shell some characters including > may need escaping. More information about this is available in the GRUB Manual in the section about the 'default' command. "; echo echo gettext "Report bugs to <bug-grub@gnu.org>."; echo } argument () { opt=$1 shift if test $# -eq 0; then gettext_printf "%s: option requires an argument -- \`%s'\n" "$self" "$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=/boot if [ -n "$rootdir" ] ; then # Initialize bootdir if rootdir was initialized. bootdir=${rootdir}/boot fi fi grubdir=`echo "${bootdir}/grub2" | sed 's,//*,/,g'` # Restore saved_entry if it was set by previous version prev_saved_entry=`$grub_editenv ${grubdir}/grubenv list | sed -n 's/^prev_saved_entry=//p'` if [ "$prev_saved_entry" ]; then $grub_editenv ${grubdir}/grubenv set saved_entry="$prev_saved_entry" $grub_editenv ${grubdir}/grubenv unset prev_saved_entry fi $grub_editenv ${grubdir}/grubenv set next_entry="$entry" # Bye. exit 0

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