Hi, > how exactly i add the alias : > alias char-major-10 char-major-10-%d ? add in /etc/conf.modules: alias char-major-10 misc or even better load misc.o from /usr/src/linux/drivers/char/misc.o (or /lib/modues/current/misc/mic.o) This module will request itself the char-major-10-%d modules and you will get another missing entry in the logs with the minor number added. Greetings Bernd