… Kamikaze 7.09 and Kernel 2.6.22.
It took a while but finally i got it ;)
Compiling a Kamikaze with build in AX25 support, manual copy of crc16.ko because the package is not built automatically. Afterwards install stty manually because i did not know whether the serial port was working with the correct speed. In the end i discovered that you have to set the correct speed in /etc/ax25/axports because this number is used by kissattach to overwrite the value that was set before. Nice to know. This was not the case some years ago.