olafsmail@web.de writes: > The problem occurs already when inserting the isdn.o module: > > matrix:/home/og# modprobe isdn > /lib/modules/2.2.17/misc/isdn.o: init_module: Device or resource > busy Are you using a precompiled Debian kernel? I think it has builtin ISDN support, which causes a »busy« message when inserting the module. HTH, Fx -- Who do you think you are today?