Move extensions into a subdirectory

Change-Id: I12e7c03b30da78da1eb220d2826ce0003d6efe2e

1 files changed, 30 insertions, 0 deletions

diff --git a/extensions/nfsboot.configure b/extensions/nfsboot.configure
new file mode 100755
index 00000000..6a68dc48
--- /dev/null
+++ b/extensions/nfsboot.configure
@@ -0,0 +1,30 @@
+#!/bin/sh
+# Copyright (C) 2013-2015  Codethink Limited
+#
+# This program 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; version 2 of the License.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+
+
+# Remove all networking interfaces. On nfsboot systems, eth0 is set up
+# during kernel init, and the normal ifup@eth0.service systemd unit
+# would break the NFS connection and cause the system to hang.
+
+
+set -e
+if [ "$NFSBOOT_CONFIGURE" ]; then
+    # Remove all networking interfaces but loopback
+    cat > "$1/etc/network/interfaces" <<EOF
+auto lo
+iface lo inet loopback
+EOF
+
+fi