Correct /etc/gettydefs for a Serial Console

[Grant Erickson]

On Tue, 3 Apr 2001, Brian Kuschak wrote:
> Second issue first.  You need to change the si line to this.  This
> causes init to wait until this is finished before continuing.
>
> si::bootwait:/etc/rc.sysinit
>
> I use the following line in my gettydefs:
>
> # 9600 baud Dumb Terminal entry
> DT9600# B9600 CS8 CLOCAL # B9600 SANE -ISTRIP CLOCAL #@S login: #DT9600
>
> And this in my inittab:
>
> # Run gettys in standard runlevels
> cn1:123:respawn:/sbin/getty -h ttyS0 DT9600 vt100
>
> This works well on a custom PPC405 board.

Unfortunately, neither of these changes seemed to influence much. However,
what was different is that I'd previously specified my getty line as:

	co:123:respawn:/sbin/getty console console

Changing it to:

	co:123:respawn:/sbin/getty ttyS0 console

didn't do much to help my "CR/NL" problem as shown below. In playing with
it though, I did change ttyS0 to ttyS1 (the other serial port). This DID
fix the below "CR/NL" problem as desired; however, now the console login
prompt shows up on the wrong port.

What finally DID work was to move the 'co' inittab entry to the bottom,
AFTER all the 'l#' entries.

Thanks for the tip which got me going in the direction I needed!

Regards,

Grant


> -----Original Message-----
> From: Grant Erickson [mailto:erick205 at umn.edu]
> Sent: Tuesday, April 03, 2001 8:58 AM
> To: linuxppc-embedded at lists.linuxppc.org
> Subject: Correct /etc/gettydefs for a Serial Console
>
>
>
> I am trying to debug two issues with the look and feel of a serial console
> on a IBM PowerPC 405GP Walnut board.
>
> Issue 1)
>
> 	- After the first few lines of text spew out for user-space
> 	  process kick-off, the end-of-line characters get translated
> 	  incorrectly:
>
> 	  INIT: Entering runlevel: 3
> 	  The system is coming up.
> 	  Network daemons: portmap.
> 	  NIS domain: borg-nis
> 	  NIS daemons: ypbind.
>
> 	  Linux (walnut)
>
>
> 	  walnut console login: .
>                                   NFS daemons: automount.
>                                                          Internet daemons:
> ine
>           td.
>              Log daemons: syslogd klogd.
>                                         RPC daemons: rstatd rusersd.
>                                                                     Other
> dae
>           mons:.
>
> 	I suspect that the problem is with my /etc/gettydefs file:
>
> 	  #
> 	  #    Line settings and hunt sequences for TTY ports used by getty.
> 	  #
>
> 	  #
> 	  # <speed># <init flags> # <final flags> #<login
> string>#<next-speed>
> 	  #
>
> 	  # Serial Console entry
> 	  console# B9600 CLOCAL # B9600 SANE TAB3 CLOCAL #\r\n\n at S console
> login: #console
>
> 	Does anyone have a more reasonable /etc/gettydefs. I suspect I
> 	might need ONLCR?
>
> Issue 2)
>
> 	- The console prompt from getty comes up before the daemons
> 	  executed by the scripts in /etc/rc.d/rc3.d are finished (see
> 	  above example). I suspect that there's a possible problem in my
> 	  /etc/inittab:
>
> 	  #
> 	  #    System V init run level process control file
> 	  #
>
> 	  # Default run level
> 	  id:3:initdefault:
>
> 	  # System initialization.
> 	  si::sysinit:/etc/rc.d/rc.sysinit
>
> 	  # System console
> 	  co:123:respawn:/sbin/getty console console
>
> 	  l0:0:wait:/etc/rc.d/rc 0
> 	  l1:1:wait:/etc/rc.d/rc 1
> 	  l2:2:wait:/etc/rc.d/rc 2
> 	  l3:3:wait:/etc/rc.d/rc 3
> 	  l4:4:wait:/etc/rc.d/rc 4
> 	  l5:5:wait:/etc/rc.d/rc 5
> 	  l6:6:wait:/etc/rc.d/rc 6
>
> Any ideas?
>
> Thanks,
>
> Grant Erickson
>
>
> --
>  Grant Erickson                       University of Minnesota Alumni
>   o mail:erick205 at umn.edu                                 1996 BSEE
>   o http://www.umn.edu/~erick205                          1998 MSEE
>
>
>

--
 Grant Erickson                       University of Minnesota Alumni
  o mail:erick205 at umn.edu                                 1996 BSEE
  o http://www.umn.edu/~erick205                          1998 MSEE


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