I attempted to build two new Raspberry Pi 5 nodes this evening. Ran into trouble with the nodes not starting properly. The log files indicated that dahdi was failing to start.
Upon digging deeper, dahdi basically disappeared from the /dev folder. Hence why it would not start.
I decided to wipe and reimage the two SD cards. The nodes came right up. Then I continued down my "new node build checklist" like the first time around and next installed the vpn client. During that process, after running the apt update and apt upgrade commands to complete the vpn installation, I just happened to glance over at the USB radio interfaces and noticed that the heartbeat LEDs went dark.
Sure enough, the nodes were in a failed state again, and the dahdi folders were gone.
Doing some reading here in the community the past few days, I recalled reading the post regarding the recent update having an issue with "dahdi-dkms package now explicitly requires one of kernel-headers-amd64 or kernel-headers-arm64".
So I went and enabled the beta channel and forced another update. As soon as the update completed, the USB radio interfaces came to life, the dahdi folders were restored, and all was good again.
Just some feedback to the development team, for what it is worth.
Eric
K2CB