Illumos support.

* Makefile.util.def (10_illumos): New script.
	* configure.ac: Set COND_HOST_ILLUMOS.
	* grub-core/kern/emu/hostdisk.c (grub_util_get_fd_sectors) [__sun__]:
	Support Illumos calls.
	(find_partition_start) [__sun__]: Likewise.
	(convert_system_partition_to_system_disk) [__sun__]: Likewise.
	(device_is_wholedisk) [__sun__]: Handle Illumos naming scheme.
	(grub_util_biosdisk_get_grub_dev) [__sun__]: Handle Illumos.
	* util/getroot.c (find_root_device_from_libzfs) [__sun__]: Return raw
	device.
	* util/grub-probe.c (probe) [__sun__]: Do character check.
	* util/grub.d/10_illumos.in: New file.

util/grub.d/10_illumos.in

@@ -0,0 +1,54 @@
+#! /bin/sh
+set -e
+
+# grub-mkconfig helper script.
+# Copyright (C) 2006,2007,2008,2009,2010,2011  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/>.
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+bindir=@bindir@
+libdir=@libdir@
+datarootdir=@datarootdir@
+. ${libdir}/@PACKAGE@/grub-mkconfig_lib
+
+export TEXTDOMAIN=@PACKAGE@
+export TEXTDOMAINDIR=@localedir@
+
+CLASS="--class os"
+
+case "${GRUB_DISTRIBUTOR}" in
+  *)
+	OS="Illumos"
+	CLASS="--class illumos ${CLASS}"
+  ;;
+esac
+
+echo "menuentry '${OS}' ${CLASS} {"
+save_default_entry | sed -e "s/^/\t/"
+prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | sed -e "s/^/\t/"
+message="$(gettext_printf "Loading kernel of Illumos ...")"
+  cat << EOF
+	insmod gzio
+	if cpuid -l ; then
+		ISADIR=amd64
+	else
+		ISADIR=
+	fi
+	zfs-bootfs $($grub_mkrelpath /) ZFS_BOOTFS
+	multiboot $($grub_mkrelpath /platform/i86pc/kernel)/\$ISADIR/unix /platform/i86pc/kernel/\$ISADIR/unix -B \$ZFS_BOOTFS,console=text
+	module $($grub_mkrelpath /platform/i86pc)/\$ISADIR/boot_archive /platform/i86pc/\$ISADIR/boot_archive
+}
+EOF