Your ARM board can be configured for a serial console (see
www.tldp.org for instructions on how to instruct the kernel to provide a serial console). When the ARM board is set up properly, you can use 'minicom' (or similar) on any other machine to connect to the ARM.
I'm not familiar with the ARM bootloader for Linux, so you will have to check its documentation to see if it can also be configured to provide an output to the serial port while booting.
The serial ttyS0 problem
