Suse 8.2 kernel recompile

i've tried to compile my own kernel in this way 1. install source of 2.4.20 from suse 8.2 dvd 2. do a "make xconfig" in /usr/src/linux as usual 3. load configuration file from /boot/vmlinuz.config 4. remove some driver that i don't need 5. save 6. make dep 7. make bzImage 8. make modules 9. make modules_install after a while the kernel seems to be ok but a depmod -a told me that raiser-fs module cannot be found.. but i DON'T remove raiser-fs modules!!! ok i tried to edit anyway my grub config file copying bzImage on /boot dir and reboot next boot i recive a kernel panic on reiser fs... oh yes it is missed!! why? anyone know where is my fault? thanks