Add test to check that different boot mediums work.

tests/netboot_test.in

@@ -0,0 +1,42 @@
+#! /bin/sh
+# Copyright (C) 2013  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/>.
+
+set -e
+grubshell=@builddir@/grub-shell
+
+. "@builddir@/grub-core/modinfo.sh"
+
+case "${grub_modinfo_target_cpu}-${grub_modinfo_platform}" in
+    # Flash targets
+    i386-qemu | i386-coreboot | mips-qemu_mips | mipsel-qemu_mips)
+	exit 0;;
+    # FIXME: currently grub-shell uses only -kernel for loongson
+    mipsel-loongson)
+	exit 0;;
+    # FIXME: no rtl8139 support
+    i386-multiboot)
+	exit 0;;
+    # FIXME: We don't fully support netboot on ARC
+    *-arc)
+	exit 0;;
+    # FIXME: Many QEMU firmware have no netboot capability
+    *-efi | i386-ieee1275 | powerpc-ieee1275 | sparc64-ieee1275)
+	exit 0;;
+esac
+
+if [ "$(echo hello | "${grubshell}" --boot=net)" != "Hello World" ]; then
+   exit 1
+fi