I was running updates over the weekend and realized that one of on premises PBXs is running on Debian13. I’m guessing it’s been few months since I accidentally did it. Surprisingly PHP didnt upgrade and still version 8.2
This was the first time I decided to run updates from CLI instead of GUI by following a guide written on 20tele.com
When I ran command apt install -y needrestart and it failed I started digging and found the problem.
I skipped an update this time.
I did ran a backup and restored to Debian12 with different lower spec hardware just to verify if it’s working and it seems to have all identical settings except it’s missing everything related to commercial modules.
I ordered identical hardware and planning on restoring on it, then swapping it with deb13 in production and verifying its functionality, if all works as before, I’ll ran a new backup and trying restoring on original hardware with all licenses attached to it.
Next step would be activating warm spare and configuring proper failover.
Any suggestions are greatly appreciated