Proceeding with the modem drivers installation: /usr/bin/install -c -m644 --owner=0 --group=0 -b -D lt_modem.o /lib/modules/2.4.7-10/kernel/drivers/char/lt_modem.o /usr/bin/install -c -m644 --owner=0 --group=0 -b -D lt_serial.o /lib/modules/2.4.7-10/kernel/drivers/char/lt_serial.o The modem drivers are now installed in the standard modules path: /lib/modules/2.4.7-10/kernel/drivers/char/lt_modem.o /lib/modules/2.4.7-10/kernel/drivers/char/lt_serial.o with ownership by root. Informing the System, including a check of dependencies with: depmod -a The modem drivers passed the dependency test. The drivers can be removed from the modules search PATH with: ./ltuninst2 The next installation command is: ./autoload Under ./ltinst2 the modem device node is created. and autoloading of the modem drivers through amendments to /etc/modules.conf So unless you are a Linux expert, it is strongly recommended to next run: ./autoload