commit dca06dc7dec148cac2d9e27cdb20d7d26bb0a941
author Matt Riedemann <mriedem@us.ibm.com> Thu Aug 20 13:56:57 2015 -0700
committer Matt Riedemann <mriedem@us.ibm.com> Thu Aug 20 14:09:22 2015 -0700
tree 1440512510c5e73e7d82f12e6bbc18a35c8b3d1c
parent 32e0febbc086a1accd90c3d9a9535ebb75495afe

Enable nbd if you're running an lxc virt_type without an lvm backend

If nbd isn't enabled you can't boot instances with libvirt using lxc
(unless you're using an lvm backend).

Closes-Bug: #1487195

Co-Authored-By: Andrew Melton <andrew.melton@rackspace.com>

Change-Id: I08c4d498ed35166f566291d9530ca1ecfae05625

lib/nova

diff --git a/lib/nova b/lib/nova
index 6441a89..087cac6 100644
--- a/lib/nova
+++ b/lib/nova
@@ -354,6 +354,12 @@
                             sudo mount /cgroup
                         fi
                     fi
+
+                    # enable nbd for lxc unless you're using an lvm backend
+                    # otherwise you can't boot instances
+                    if [[ "$NOVA_BACKEND" != "LVM" ]]; then
+                        sudo modprobe nbd
+                    fi
                 fi
             fi
         fi