How to activate Serial Console on Debian Squeeze
Activating a Serial Console starting at the bootloader all the way up to a tty login requires just a few steps, but it took me some time to figure out all the knobs. Here’s how to do it with Debian Squeeze:
To have configruation changes persistent in Debian, you may not edit /boot/grub/grub.cfg directly, but need to edit/add the appropiate lines in /etc/defaults/grub:
update-grub and you’ll get the Bootloader and all Kernel and Init messages on your serial console the next time you boot.
To get a login promt on serial you need to modify /etc/inittab to:
That’s it. run
init q to reload init and activate serial login, or simply reboot.