You have enabled the serial console in your BIOS.
The reader is referred to this document for any issues arising from using this HOWTO.
This procedure was developed using the Remote Serial Console HOWTO (see 'External links' below), and adapted to apply specifically to Ubuntu. (Minor changes have been added to improve performance.) Both server and client settings are included. This document presents (almost) the minimum amount of work required to enable a serial console login on an Ubuntu 6.06 and later versions. This article should be cleaned-up to follow the content standards in the Wiki Guide.