Upgrading is always scary, I will appreciate any comment on the following.

Our freeIPA is serving a small number of FC desktops and users (< 10), and is running on a FC 23 server, with packages for ipa versioned 4.2.4-2.fc23.

The simplest thing I can do is of course to upgrade the FC system until the latest, one version at the time. What I probably want to do is actually move to CentOS - I'm fed up with running after FC releases.

In both cases (especially in the second case), I thought it may be wise to make a replica of the ipa server before starting the upgrade.

My plan would be:

- Have an up-to-date CentOS system (IPA-B), enroll it and promote it to replica of the existing one (IPA-A)
- [ Question: is it better to have IPA-B on a recent version or on the same version as IPA-A? ]

- Shut down IPA-A 

- Verify that IPA-B works

- Wipe out IPA-A, install recent CentOS.

- Enroll IPA-A

- Promote it to replica.

- Enjoy

Am I overlooking something? Could I do something more prudently?

Thanks for your input!

Roberto