The boto tests currently don't run because euca-bundle-image fails on
Ubuntu; e.g.
---
++ euca-bundle-image -r x86_64 \
-i /opt/stack/new/devstack/files/images/cirros-0.3.2-x86_64-uec/cirros-0.3.2-x86_64-vmlinuz \
--kernel true \
-d /opt/stack/new/devstack/files/images/s3-materials/cirros-0.3.2
euca-bundle-image: error: No such file or directory: /opt/stack/new/devstack/files/images/s3-materials/cirros-0.3.2
---
I noticed this in debugging why Fedora tests are running slower. I
think that the version of euca-bundle-image in Fedora must create the
directory if it doesn't exist, while the Ubuntu one fails.
I also think this doesn't get caught by errexit because it's running
in a special sub-shell to use other credentials.
Change-Id: I79125e956088353aa76a3f7d6d81af1e4f6a27d4