Comment 6 for bug 1750311

- We added https://review.openstack.org/#/c/484963 in openstack-infra/tripleo-ci to create /dev/loop3 which the delopment then uses as an OSD.
- that task seems to have failed as /dev/loop3 is not present as per the error message:

(item=/dev/loop3) => {"changed": false, "cmd": "parted --script /dev/loop3 print | egrep -sq \'^ 1.*ceph\'", "delta": "0:00:00.015108", "end": "2018-02-19 02:49:11.988895", "failed_when_result": false, "item": "/dev/loop3", "msg": "non-zero return code", "rc": 1, "start": "2018-02-19 02:49:11.973787", "stderr": "Error: Could not stat device /dev/loop3 - No such file or directory.", "stderr_lines": ["Error: Could not stat device /dev/loop3 - No such file or directory."]

Search the following for "Could not stat device /dev/loop3":

https://logs.rdoproject.org/openstack-periodic/periodic-tripleo-ci-centos-7-multinode-1ctlr-featureset016-queens/8b4282d/undercloud/var/log/mistral/engine.log.txt.gz#_2018-02-19_02_49_17_320

Looking for output of openstack-infra/tripleo-ci / scripts/bootstrap-overcloud-full-minimal.sh to see what happened.