An upgrade, but a stalled upgrade (stalled when updating http.d, if I recall), which has then required a few subsequent 'fixes' along the way. I think this was why I had to do the 'weak modules' fix, amongst other fixes.
I also have the /etc/init.d/dahdi file, but as posted above, it's not seen by chkconfig.
It's survived one reboot, and one fwconsole restart so far!
Interestingly, wanrouter is still reporting errors when I do a fwconsole restart, even though I disabled wanrouter startup through chkconfig.:
<snip>
Shutting down Asterisk Gracefully. Will forcefully kill after 30 seconds.
Press C to Cancel
Press N to shut down NOW
[============================] 2 secs
Wanrouter: No valid Sangoma Hardware found, if you have no Sangoma cards this is OK
Stopping DAHDi for Digium Cards
DAHDi Stopped
Queue Callback Server is not running
Running FreePBX startup...
Running Asterisk pre from Dahdiconfig module
Wanrouter: No valid Sangoma Hardware found, if you have no Sangoma cards this is OK
Starting DAHDi for Digium Cards
DAHDi Started
<snip>