util/grub-mkconfig.in

   1 #! /bin/sh
   2 set -e
   3
   4 # Generate grub.cfg by inspecting /boot contents.
   5 # Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc.
   6 #
   7 # GRUB is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # GRUB is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 prefix="@prefix@"
  21 exec_prefix="@exec_prefix@"
  22 datarootdir="@datarootdir@"
  23
  24 prefix="@prefix@"
  25 exec_prefix="@exec_prefix@"
  26 sbindir="@sbindir@"
  27 bindir="@bindir@"
  28 sysconfdir="@sysconfdir@"
  29 PACKAGE_NAME=@PACKAGE_NAME@
  30 PACKAGE_VERSION=@PACKAGE_VERSION@
  31 host_os=@host_os@
  32 datadir="@datadir@"
  33 if [ "x$pkgdatadir" = x ]; then
  34     pkgdatadir="${datadir}/@PACKAGE@"
  35 fi
  36 grub_cfg=""
  37 grub_mkconfig_dir="${sysconfdir}"/grub.d
  38
  39 self=`basename $0`
  40
  41 grub_probe="${sbindir}/@grub_probe@"
  42 grub_editenv="${bindir}/@grub_editenv@"
  43 grub_script_check="${bindir}/@grub_script_check@"
  44
  45 export TEXTDOMAIN=@PACKAGE@
  46 export TEXTDOMAINDIR="@localedir@"
  47
  48 . "${pkgdatadir}/grub-mkconfig_lib"
  49
  50 # Usage: usage
  51 # Print the usage.
  52 usage () {
  53     gettext_printf "Usage: %s [OPTION]\n" "$self"
  54     gettext "Generate a grub config file"; echo
  55     echo
  56     print_option_help "-o, --output=$(gettext FILE)" "$(gettext "output generated config to FILE [default=stdout]")"
  57     print_option_help "-h, --help" "$(gettext "print this message and exit")"
  58     print_option_help "-v, --version" "$(gettext "print the version information and exit")"
  59     echo
  60     gettext "Report bugs to <bug-grub@gnu.org>."; echo
  61 }
  62
  63 argument () {
  64   opt=$1
  65   shift
  66
  67   if test $# -eq 0; then
  68       gettext_printf "%s: option requires an argument -- \`%s'\n" "$self" "$opt" 1>&2
  69       exit 1
  70   fi
  71   echo $1
  72 }
  73
  74 # Check the arguments.
  75 while test $# -gt 0
  76 do
  77     option=$1
  78     shift
  79
  80     case "$option" in
  81     -h | --help)
  82         usage
  83         exit 0 ;;
  84     -v | --version)
  85         echo "$self (${PACKAGE_NAME}) ${PACKAGE_VERSION}"
  86         exit 0 ;;
  87     -o | --output)
  88         grub_cfg=`argument $option "$@"`; shift;;
  89     --output=*)
  90         grub_cfg=`echo "$option" | sed 's/--output=//'`
  91         ;;
  92     -*)
  93         gettext_printf "Unrecognized option \`%s'\n" "$option" 1>&2
  94         usage
  95         exit 1
  96         ;;
  97     # Explicitly ignore non-option arguments, for compatibility.
  98     esac
  99 done
 100
 101 if [ "x$EUID" = "x" ] ; then
 102   EUID=`id -u`
 103 fi
 104
 105 if [ "$EUID" != 0 ] ; then
 106   root=f
 107   case "`uname 2>/dev/null`" in
 108     CYGWIN*)
 109       # Cygwin: Assume root if member of admin group
 110       for g in `id -G 2>/dev/null` ; do
 111         case $g in
 112           0|544) root=t ;;
 113         esac
 114       done ;;
 115   esac
 116   if [ $root != t ] ; then
 117     gettext_printf "%s: You must run this as root\n" "$self" >&2
 118     exit 1
 119   fi
 120 fi
 121
 122 set $grub_probe dummy
 123 if test -f "$1"; then
 124     :
 125 else
 126     gettext_print "%s: Not found.\n" "$1" 1>&2
 127     exit 1
 128 fi
 129
 130 # Device containing our userland.  Typically used for root= parameter.
 131 GRUB_DEVICE="`${grub_probe} --target=device /`"
 132 GRUB_DEVICE_UUID="`${grub_probe} --device ${GRUB_DEVICE} --target=fs_uuid 2> /dev/null`" || true
 133
 134 # Device containing our /boot partition.  Usually the same as GRUB_DEVICE.
 135 GRUB_DEVICE_BOOT="`${grub_probe} --target=device /boot`"
 136 GRUB_DEVICE_BOOT_UUID="`${grub_probe} --device ${GRUB_DEVICE_BOOT} --target=fs_uuid 2> /dev/null`" || true
 137
 138 # Filesystem for the device containing our userland.  Used for stuff like
 139 # choosing Hurd filesystem module.
 140 GRUB_FS="`${grub_probe} --device ${GRUB_DEVICE} --target=fs 2> /dev/null || echo unknown`"
 141
 142 if [ x"$GRUB_FS" = xunknown ]; then
 143     GRUB_FS="$(stat -f --printf=%T / || echo unknown)"
 144 fi
 145
 146 if test -f ${sysconfdir}/default/grub ; then
 147   . ${sysconfdir}/default/grub
 148 fi
 149
 150 # XXX: should this be deprecated at some point?
 151 if [ "x${GRUB_TERMINAL}" != "x" ] ; then
 152   GRUB_TERMINAL_INPUT="${GRUB_TERMINAL}"
 153   GRUB_TERMINAL_OUTPUT="${GRUB_TERMINAL}"
 154 fi
 155
 156 termoutdefault=0
 157 if [ "x${GRUB_TERMINAL_OUTPUT}" = "x" ]; then
 158     GRUB_TERMINAL_OUTPUT=gfxterm;
 159     termoutdefault=1;
 160 fi
 161
 162 for x in ${GRUB_TERMINAL_OUTPUT}; do
 163     case "x${x}" in
 164         xgfxterm) ;;
 165         xconsole | xserial | xofconsole | xvga_text)
 166             # make sure all our children behave in conformance with ascii..
 167             export LANG=C;;
 168         *) echo "Invalid output terminal \"${GRUB_TERMINAL_OUTPUT}\"" >&2 ; exit 1 ;;
 169     esac
 170 done
 171
 172 GRUB_ACTUAL_DEFAULT="$GRUB_DEFAULT"
 173
 174 if [ "x${GRUB_ACTUAL_DEFAULT}" = "xsaved" ] ; then GRUB_ACTUAL_DEFAULT="`"${grub_editenv}" - list | sed -n '/^saved_entry=/ s,^saved_entry=,,p'`" ; fi
 175
 176
 177 # These are defined in this script, export them here so that user can
 178 # override them.
 179 export GRUB_DEVICE \
 180   GRUB_DEVICE_UUID \
 181   GRUB_DEVICE_BOOT \
 182   GRUB_DEVICE_BOOT_UUID \
 183   GRUB_FS \
 184   GRUB_FONT \
 185   GRUB_PRELOAD_MODULES \
 186   GRUB_ACTUAL_DEFAULT
 187
 188 # These are optional, user-defined variables.
 189 export GRUB_DEFAULT \
 190   GRUB_HIDDEN_TIMEOUT \
 191   GRUB_HIDDEN_TIMEOUT_QUIET \
 192   GRUB_TIMEOUT \
 193   GRUB_TIMEOUT_STYLE \
 194   GRUB_DEFAULT_BUTTON \
 195   GRUB_HIDDEN_TIMEOUT_BUTTON \
 196   GRUB_TIMEOUT_BUTTON \
 197   GRUB_TIMEOUT_STYLE_BUTTON \
 198   GRUB_BUTTON_CMOS_ADDRESS \
 199   GRUB_BUTTON_CMOS_CLEAN \
 200   GRUB_DISTRIBUTOR \
 201   GRUB_CMDLINE_LINUX \
 202   GRUB_CMDLINE_LINUX_DEFAULT \
 203   GRUB_CMDLINE_XEN \
 204   GRUB_CMDLINE_XEN_DEFAULT \
 205   GRUB_CMDLINE_LINUX_XEN_REPLACE \
 206   GRUB_CMDLINE_LINUX_XEN_REPLACE_DEFAULT \
 207   GRUB_CMDLINE_NETBSD \
 208   GRUB_CMDLINE_NETBSD_DEFAULT \
 209   GRUB_CMDLINE_GNUMACH \
 210   GRUB_TERMINAL_INPUT \
 211   GRUB_TERMINAL_OUTPUT \
 212   GRUB_SERIAL_COMMAND \
 213   GRUB_DISABLE_LINUX_UUID \
 214   GRUB_DISABLE_RECOVERY \
 215   GRUB_VIDEO_BACKEND \
 216   GRUB_GFXMODE \
 217   GRUB_BACKGROUND \
 218   GRUB_THEME \
 219   GRUB_GFXPAYLOAD_LINUX \
 220   GRUB_DISABLE_OS_PROBER \
 221   GRUB_INIT_TUNE \
 222   GRUB_SAVEDEFAULT \
 223   GRUB_ENABLE_CRYPTODISK \
 224   GRUB_BADRAM \
 225   GRUB_OS_PROBER_SKIP_LIST \
 226   GRUB_DISABLE_SUBMENU
 227
 228 if test "x${grub_cfg}" != "x"; then
 229   rm -f "${grub_cfg}.new"
 230   oldumask=$(umask); umask 077
 231   exec > "${grub_cfg}.new"
 232   umask $oldumask
 233 fi
 234 gettext "Generating grub configuration file ..." >&2
 235 echo >&2
 236
 237 cat << EOF
 238 #
 239 # DO NOT EDIT THIS FILE
 240 #
 241 # It is automatically generated by $self using templates
 242 # from ${grub_mkconfig_dir} and settings from ${sysconfdir}/default/grub
 243 #
 244 EOF
 245
 246 for i in ${grub_mkconfig_dir}/* ; do
 247   case "$i" in
 248     # emacsen backup files. FIXME: support other editors
 249     *~) ;;
 250     # emacsen autosave files. FIXME: support other editors
 251     */\#*\#) ;;
 252     *)
 253       if grub_file_is_not_garbage "$i" && test -x "$i" ; then
 254         echo
 255         echo "### BEGIN $i ###"
 256         "$i"
 257         echo "### END $i ###"
 258       fi
 259     ;;
 260   esac
 261 done
 262
 263 if test "x${grub_cfg}" != "x" ; then
 264   if ! ${grub_script_check} ${grub_cfg}.new; then
 265     # TRANSLATORS: %s is replaced by filename
 266     gettext_printf "Syntax errors are detected in generated GRUB config file.
 267 Ensure that there are no errors in /etc/default/grub
 268 and /etc/grub.d/* files or please file a bug report with
 269 %s file attached." "${grub_cfg}.new" >&2
 270     echo >&2
 271   else
 272     # none of the children aborted with error, install the new grub.cfg
 273     mv -f ${grub_cfg}.new ${grub_cfg}
 274   fi
 275 fi
 276
 277 gettext "done" >&2
 278 echo >&2