dahdi/pseudo problem

Ken KE2N

My DVSwitch Debian install had the asterisk module become non-functional a few days ago.  It includes a pseudo node and seems to have a problem with dahdi.  I restart I get this message

[Aug 31 12:29:40] WARNING[2002] chan_dahdi.c: Unable to open '/dev/dahdi/pseudo': No such file or directory
[Aug 31 12:29:40] ERROR[2002] chan_dahdi.c: Unable to dup channel: No such file or directory
[Aug 31 12:29:42] ERROR[1975] app_rpt.c: Continual RPT thread restarts, killing Asterisk

I have seen this kind of thing before and it had to do with an upgrade to the OS (which I am not aware of doing in this case)

anyway it seems I have kernel 4.9.0-6
~  uname -a
Linux xlxref 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 

and if I look in 
I see directories but no modules (or files!)

I do have *.ko modules in 
/lib/modules/4.9.0-7-amd64/dahdi   and

so what is the correct way to fix this?


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