Comment 4 for bug 1664435

Actually I just resolved a workaround.

Set source to the original setting (I was going from stein to ussuri), so:

juju config ceph-osd source="cloud:bionic-stein"

Wait for agents to receive updated config

juju ssh into each osd box thats waiting and to a restart of the service for the juju agent:

sudo service jujud-unit-ceph-osd-<number>

Then, once everything evens out and is "ready", make sure the crush map is proper, and then run the upgrade again:

juju config ceph-osd source="cloud:bionic-ussuri"