I'm trying to set up a new ceph cluster, and I've hit a bit of a blank.
I started off with centos7 and cephadm. Worked fine to a point, except I
had to upgrade podman but it mostly worked with octopus.
Since this is a fresh cluster and hence no data at risk, I decided to jump
straight into Pacific when it came out and upgrade. Which is where my
trouble began. Mostly because Pacific needs a version on lvm later than
what's in centos7.
I can't upgrade to centos8 as my boot drives are not supported by centos8
due to the way redhst disabled lots of disk drivers. I think I'm looking at
Ubuntu or debian.
Given cephadm has a very limited set of depends it would be good to have a
supported matrix, it would also be good to have a check in cephadm on
upgrade, that says no I won't upgrade if the version of lvm2 is too low on
any host and let's the admin fix the issue and try again.
I was thinking to upgrade to centos8 for this project anyway until I
relised that centos8 can't support my hardware I've inherited. But
currently I've got a broken cluster unless I can workout some way to
upgrade lvm in centos7.
Peter.
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