You should be able to `do-release-upgrade` from bionic/18 to focal/20. Octopus/15 is shipped for both dists from ceph. Its been a while since I did this, the release upgrader might disable the ceph repo, and uninstall the ceph* packages. However, the OSDs should still be there, re-enable the ceph repo, install ceph-osd, and then `ceph-volume lvm activate —all` should find and start all of the OSDs. Caveat, if you’re using cephadm, I’m sure the process is different. And also, if you’re trying to go to jammy/22, thats a different story, because ceph isn’t shipping packages for jammy yet for any version of ceph. I assume that they are going to ship quincy for jammy at some point, which will give a stepping stone from focal to jammy with the quincy release, because I don’t imagine that there will be a reef release for focal. Reed > On Oct 26, 2022, at 9:14 AM, Simon Oosthoek <s.oosthoek@xxxxxxxxxxxxx> wrote: > > Dear list, > > I'm looking for some guide or pointers to how people upgrade the underlying host OS in a ceph cluster (if this is the right way to proceed, I don't even know...) > > Our cluster is nearing the 4.5 years of age and now our ubuntu 18.04 is nearing the end of support date. We have a mixed cluster of u18 and u20 nodes, all running octopus at the moment. > > We would like to upgrade the OS on the nodes, without changing the ceph version for now (or per se). > > Is it as easy as installing a new OS version, installing the ceph-osd package and a correct ceph.conf file and restoring the host key? > > Or is more needed regarding the specifics of the OSD disks/WAL/journal? > > Or is it necessary to drain a node of all data and re-add the OSDs as new units? (This would be too much work, so I doubt it ;-) > > The problem with searching for information about this, is that it seems undocumented in the ceph documentation, and search results are flooded with ceph version upgrades. > > Cheers > > /Simon > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx
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