> Perhaps the problem comes because of the serial interface. When starting
DOS on
> the flash disk there is a mechanism that i get startup messages over the
serial
> line to a terminal. After DOS is loaded I have a dos shell available on
the
> terminal connected with COM2. ( COM1 is not available because
> there is only TTL on COM1 )
DOS-ROM has a redirection of video bios service (int10h) to serial port.
> I thought that when Linux is coming up it is using it's own methods to
acces the
> hardware
> such as the serial interface?
> How can linux write somwthing to serial interface at startup time, without
> loaded any drivers?
Kernel writes to serial interface when you tell it to use serial console.
But in your case I am sure that kernel is not loaded yet,
that's why you do not see any messages.
Regards,
Konstantin
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