add note to fix the process of adding user to group
diff --git a/stack.sh b/stack.sh
index 660a529..55ef2b5 100755
--- a/stack.sh
+++ b/stack.sh
@@ -320,6 +320,8 @@
sudo modprobe nbd || true
sudo modprobe kvm || true
# user needs to be member of libvirtd group for nova-compute to use libvirt
+ ## FIXME: this doesn't affect the current shell so you end up with a failed
+ ## launch of nova-compute
sudo usermod -a -G libvirtd `whoami`
# if kvm wasn't running before we need to restart libvirt to enable it
sudo /etc/init.d/libvirt-bin restart