[ceph-users] friendly warning about death by container versions

I was having horrible problems getting my test ceph clusterj reinitialized. All kinds of annoying things were happening. including things like getting differing output from ceph orch device ls vs ceph device ls Being new-ish to ceph, i was going nuts, wondering what kind of init options I was missing. Turns out, nothing i was doing was wrong, per se. I had ended up with differing container versions. Even after doing "cephadm rm-cluster", the old versions were sticking. The really annoying thing is, the difference was tiny. 15.2.8 on the master. 15.2.5 on other nodes. but device related things were failing, with 2020-12-21 09:37:09,134 INFO /bin/podman:stderr ceph-volume inventory: error: unrecognized arguments: --filter-for-batch in /var/log/ceph/cephadm.log Sighhh... To save anyone else some research, the end-user fix is: run ceph orch upgrade start --ceph-version 15.2.8 -- Philip Brown| Sr. Linux System Administrator | Medata, Inc. 5 Peters Canyon Rd Suite 250 Irvine CA 92606 Office 714.918.1310| Fax 714.918.1325 pbrown(a)medata.com| www.medata.com