I recently ran into problems after I updated CentOS 4 using a standard 'yum update".
A new kernel was downloaded - vmlinuz-2.6.9-34.106.unsupported , and after I booted onto it, I found that I could not comple zaptel code. (I had also downloaded the latest asterisk and zaptel code)
In the end I had to go back to two version to 2.6.9-188.8.131.52.unsupported
before I was able to successfully compile up asterisk and zaptel!
What’s the latest CentOS kernel that anyone is successfully using with Asterisk