As a tangent, it's a problem for download.ceph.com packages that "xenial" happens to sort alphabetically after "bionic", because do-release-upgrade will consider (for example) "ceph_12.2.1-1xenial" to be newer than "ceph_12.2.1-1bionic". I think we need to switch to using "ubuntu16.04", "ubuntu18.04" suffixes instead. - Ken On Mon, Nov 13, 2017 at 4:41 AM, Ranjan Ghosh <ghosh@xxxxxx> wrote: > Hi everyone, > > In January, support for Ubuntu Zesty will run out and we're planning to > upgrade our servers to Aardvark. We have a two-node-cluster (and one > additional monitoring-only server) and we're using the packages that come > with the distro. We have mounted CephFS on the same server with the kernel > client in FSTab. AFAIK, Aardvark includes Ceph 12.0. What would happen if we > used the usual "do-release-upgrade" to upgrade the servers one-by-one? I > assume the procedure described here > "http://ceph.com/releases/v12-2-0-luminous-released/" (section "Upgrade from > Jewel or Kraken") probably won't work for us, because "do-release-upgrade" > will upgrade all packages (including the ceph ones) at once and then reboots > the machine. So we cannot really upgrade only the monitoring nodes. And I'd > rather avoid switching to PPAs beforehand. So, what are the real > consequences if we upgrade all servers one-by-one with "do-release-upgrade" > and then reboot all the nodes? Is it only the downtime why this isnt > recommended or do we lose data? Any other recommendations on how to tackle > this? > > Thank you / BR > > Ranjan > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com