Setup serial bootblocks (if on x86) and then in /etc/ttys:

console "/usr/libexec/getty std.9600" vt100   on      secure

Or whatever speed you want the console at (57600 is usually better).

If you just want a serial port to allow login's turn them on with

tty00   "/usr/libexec/getty std.9600"   unknown on secure
tty01   "/usr/libexec/getty std.9600"   unknown on secure
tty02   "/usr/libexec/getty std.9600"   unknown on secure

etc

in /etc/ttys

James

>
>Hello, everyone.
>
>Would some one like to tell me how to config the serial console ?
>I want to login in by the serial line and gain a shell to config the system.
>
>Thank you.
>Best regards
>
>sincerely yours
>suxm
>
>            suxm@gnuchina.org
>
>
>
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