@MathieuRA said in XO5 breaks after defaulting to XO6 (from source): @probain Do you have a configuration file that overrides xo-server configuration for [http.mounts] and [http.proxies]? ` Adding the following, breaks XO6 ("Cannot get /"). And XO5 still is stuck on "Still Loading. [http.upgrade] '/v5/api' = true '/v5/api/updater' = true [http.routes] '/v5/api' = { upgrade = true } '/v5/api/updater' = { upgrade = true } # List of files/directories which will be served. [http.mounts] #'/any/url' = '/path/to/directory' '/v6' = '../../@xen-orchestra/web/dist/' '/' = '../xo-web/dist/' If you're curious as to how I set everything up. I use my ansible-role (shared previously). Link for reference: https://github.com/cloudrootab/ansible_role_xoce/

@olivierlambert Thanks for the tip — it’s a very interesting mechanism. I’m going to read the docs now

@firereverie Sorry, these last few weeks was very-very busy. So I REALLY hope will do something on this before the december end and come back to you.

@Pilow I will take a look in deep later, but the key/delta and disk usage is set during backup, even if they are merged during LTR retention

In case anyone wonders how this played out. At the end of the day, I shutdown the host with the running workloads on it, kept it at BIOS boot so the 8.3 installer would upgrade it cleanly, and then booted it back up. For reasons related to my particular setup, the down time was more than 60 minutes. But that's not related to XCP-ng. The XCP-ng installer was maybe 10 of that. 20 of that was 3 reboots on a server that takes ages to boot. One thing that is a bit difficult is that the 8.3 installer doesn't notice ZFS volumes or help with ZFS. So after the upgrade, I have to follow a modified set of these instructions (modified because the package names have changed over time) to install ZFS and its components into the system. So the sequence is: Shutdown Install via ISO Reboot to single user mode Run yum update to pull in all the updates Run the ZFS commands to install ZFS on the host Reboot again Run normally Of course, I ended up rebooting more than just those 2 times, because I forgot that I would need to install ZFS (even though I did it on 2 different hosts already ) So now the pool is fully upgraded, everybody is happy. I'm now working on creating shared storage across the nodes. It's amateur hour over here. I appreciate all the help.