Jeremy is correct. The various *getty(s) generate the login prompts.
By specifying the serial console, you are just telling the kernel to use
the designated serial port as console. By default, once the kernel has
booted, it tries to run /sbin/init, or (failing that) /etc/init (I think
this is still true) and failing that, /bin/sh, as the first user-space
process. If you really don't want to run an init-type process, you need to
provide a boot parameter of the form "init=<some executable>" to the
kernel. Having said that, I still think you may want to consider a very
simple init such as that provided in busybox.
On Mon, 2 Apr 2001, Jeremy Impson wrote:
> On Mon, 2 Apr 2001, Green wrote:
>
> > I want to login to my MIPS box through serial port.
> > I execute 'make menuconfig' and select the 'serial console'.
> > But I can't see the login prompt in my window(I use netterm).
>
> I believe enabling 'serial console' tells the kernel to send boot messages
> (and other kernel messages) out the serial console. I.e. the kernel
> treats the serial port like it would your VGA console. The kernel doesn't
> provide a login prompt on either You need to run something else to do
> that.
>
> > P.S I skip /sbin/init program.
>
> This has something to do with it.
>
> Login prompts are provided by some version of 'getty' (getty, agetty,
> mgetty, mingetty, etc.). For a serial login, you need something to run
> the getty program on the serial port. Usually it's init. (For most
> server/workstation-oriented disitributions I've seen, this isn't enabled
> by default.)
>
> --Jeremy
>
> P.S. Don't use mingetty for serial consoles. It is only suitable for
> virtual terminals. Try mgetty, or just about any other.
>
> P.P.S. this sort of question really isn't appropriate for the linux-kernel
> mailing list. Leave that list for questions on making improvements to the
> kernel code, not for personal configuration questions.
>
> Jeremy Impson
> Sr. Associate Network Engineer
> Advanced Technologies Department
> Lockheed Martin Systems Integration
> email: [EMAIL PROTECTED]
> phone: 607-751-5618
> fax: 607-751-6025
>
--
George Fouse, President <[EMAIL PROTECTED]>
Quantum Technology Associates
www.quantumtek.net
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