How to – Fix: Unable to open master device ‘/dev/dahdi/ctl’ for Dahdi

This happens after updating your operating system for redhat distro’s such as Alma, Rocky or CentOS. Its an easy fix thats outlined below:

Step 1 – Browse to proper directory

cd /usr/src/dahdi-linux-complete-3.4.0+3.4.0/

Step 2 – Recompile Dahdi

make && make install && modprobe dahdi

That’s all there is to it.