Serial console

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In order to get serial logs from various components of your system special options may be needed. This page tries to give a short description of how to use these options.

coreboot

TODO

FILO

TODO

GRUB legacy

In your boot/grub/menu.lst add the following:

serial --unit=0 --speed=115200
terminal --timeout=15 serial console

Change --unit=0 to --unit=1 for the second serial port (COM2).

GRUB2

TODO

Linux kernel command line

Add

console=ttyS0,115200 console=tty0

to send debug output to both the serial console on COM1 and to VGA.

Linux login prompt

In /etc/inittab add/enable a line like this:

T0:23:respawn:/sbin/getty -L ttyS0 115200 vt100

Change ttyS0 to ttyS1 for COM2.


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