grub/util/update-grub.in
robertmh c0f90770b8 2007-06-06 Robert Millan <rmh@aybabtu.com>
* util/update-grub_lib.in (convert_system_path_to_grub_path): Abort if
	file doesn't exist, or if it is in a filesystem grub can't read.

	* util/update-grub.in: Set fallback for GRUB_FS check to "unknown".  Do
	not abort if GRUB_DRIVE could not be defined.  Rearrange generated
	header comment to fit in 80 columns when the variables are resolved.

	* util/grub.d/00_header.in: Only set root variable when GRUB_DRIVE
	could be identified by update-grub.  Remove redundant check for
	unifont.pff existance (since convert_system_path_to_grub_path now
	handles that).
2007-06-06 18:08:56 +00:00

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#! /bin/sh -e
# Generate grub.cfg by inspecting /boot contents.
# Copyright (C) 2006, 2007 Free Software Foundation, Inc.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St - Suite 330, Boston, MA 02110, USA.
transform="@program_transform_name@"
prefix=@prefix@
exec_prefix=@exec_prefix@
sbindir=@sbindir@
libdir=@libdir@
sysconfdir=@sysconfdir@
grub_prefix=`echo /boot/grub | sed ${transform}`
grub_cfg=${grub_prefix}/grub.cfg
update_grub_dir=${sysconfdir}/grub.d
grub_mkdevicemap=${sbindir}/`echo grub-mkdevicemap | sed ${transform}`
grub_probe=${sbindir}/`echo grub-probe | sed ${transform}`
# for convert_system_path_to_grub_path()
. ${libdir}/grub/update-grub_lib
if [ "x$UID" = "x" ] ; then
UID=`id -u`
fi
if [ "$UID" != 0 ] ; then
echo "$0: You must run this as root" >&2
exit 1
fi
if [ "$1" = "-y" ] ; then
echo "$0: warning: Ignoring -y option (no longer needed)." >&2
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. Typicaly used for root= parameter.
GRUB_DEVICE="`grub-probe --target=device /`"
# Filesystem for the device containing our userland. Used for stuff like
# choosing Hurd filesystem module.
GRUB_FS="`grub-probe --target=fs / 2> /dev/null || echo unknown`"
# GRUB path to /. Only used for "set root=". Not critical.
GRUB_DRIVE="`grub-probe --target=drive /`" || true
# GRUB path to /boot
GRUB_DRIVE_BOOT="`convert_system_path_to_grub_path /boot`"
# GRUB path to /boot/grub
GRUB_DRIVE_BOOT_GRUB="`convert_system_path_to_grub_path /boot/grub`"
if test -f ${sysconfdir}/default/grub ; then
. ${sysconfdir}/default/grub
fi
# These are defined in this script, export them here so that user can
# override them.
export GRUB_DEVICE GRUB_FS GRUB_DRIVE GRUB_DRIVE_BOOT GRUB_DRIVE_BOOT_GRUB
# These are optional, user-defined variables.
export GRUB_DEFAULT GRUB_TIMEOUT GRUB_DISTRIBUTOR GRUB_CMDLINE_LINUX
exec > ${grub_cfg}.new
chmod 444 ${grub_cfg}.new
echo "Updating ${grub_cfg} ..." >&2
cat << EOF
#
# DO NOT EDIT THIS FILE
#
# It is automaticaly generated by $0 using templates
# from ${update_grub_dir} and settings from ${sysconfdir}/default/grub
#
EOF
for i in ${update_grub_dir}/* ; do
case $i in
# emacsen backup files. FIXME: support other editors
*~) ;;
*)
if test -x $i ; then
echo
echo "### BEGIN $i ###"
$i
echo "### END $i ###"
fi
;;
esac
done
# none of the children aborted with error, install the new grub.cfg
mv ${grub_cfg}.new ${grub_cfg}
echo "done" >&2