Aman wrote: > Hi > > In the Redhat 7.0 linux, I was able to enable/disable the serial console > using the following command in the inittab > " T0:12345:respawn:/sbin/getty ttyS0 9600 vt100"
That is actually not a serial "console", it is a serial "login". (It's a small distinction but an important one) On a workstation system (with say VGA), when the system boots the "console" comes up and displays your boot messages. Eventually init executes and starts a login sesssion on the same device as the default console. Thus your screen has both a "console" and "login" active. > However in the case of the 440 Linux the serial console is enabled already. > I wanted to know how this enabling is done. Can someone add some points to > this. Probably with your configuration, the default system console is on a serial port. This means all boot and kernel messages will go there. Again you will want to start a login process via init in order to do multi-user logins. (But in the embedded world, init, getty/login and such aren't required. You can just as easily boot right into /bin/sh.) Now back to your original question.. How is it enabled: The console is enabled either by the system configuration or by the kernel command line, "console=". Look in the "Documentation" directory in the kernel, something in there explains serial consoles and the cmdline semantics. --Mark > > Thanking you in advance > Regards > Aman > > > > > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
