Re: Serial console to RHEL6 on Dell R310?

From	Todd <Todd@invalid.com>
Newsgroups	comp.os.linux.setup
Subject	Re: Serial console to RHEL6 on Dell R310?
Date	2011-06-13 20:51 -0700
Organization	A noiseless patient Spider
Message-ID	<it6lse$psb$1@dont-email.me> (permalink)
References	<it5usk$hgj$1@reader1.panix.com>

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On 06/13/2011 02:19 PM, Jeremiah DeWitt Weiner wrote:
> 	I'm trying to set up a new server so I can get to a serial console
> on it.  The server is a Dell PowerEdge R310, and the OS is Red Hat
> Enterprise Linux 6.  The problem is that no matter what I do, I'm unable
> to get a login prompt on the serial line, from a remote machine running
> minicom.
>
> 	I tried following these directions:
> http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Technical_Notes/deployment.html
> No dice.  (It should be noted that /etc/serial/init.conf suggests a
> different approach.)
>
> 	I tried manually starting an agetty on the serial port.  No luck -
> it would run, but I couldn't get a login prompt on the remote machine.
>
> 	I tried setting kernel arguments in grub as described here:
> http://www.dell.com/content/topics/global.aspx/power/en/ps1q03_stanton?c=us&cs=555&l=en&s=biz
> No luck.  The agetty is running, but I'm still unable to connect.
> I tried turning SELinux off, in case that had something to do with it.
> I tried setting a serial console in grub.  Nothing worked.  No output on
> the serial console.
>
> 	I know the cable and remote machine are good, because I can use
> minicom and that cable to connect to the console port of a network
> switch, and that works fine.  I know the serial port itself works
> because I can use it to connect _out_ to a network switch.  So what the
> hell is going on?  Any suggestions much appreciated...
>
>

Hi Jeremiah,

I am going to be of little help here.  Sorry.  Mainly
just moral support.

I did this on Solaris about 20 years ago and have little
memory of what I did.  Somewhere in the back of my head,
I remember you had to configure /etc/inittab with
a respawn on your serial ports.

The following is my inittab HylaFax respawn on my six serial
ports:

# Run gettys in standard runlevels
1:2345:respawn:/sbin/mingetty tty1
2:2345:respawn:/sbin/mingetty tty2
3:2345:respawn:/sbin/mingetty tty3
4:2345:respawn:/sbin/mingetty tty4
5:2345:respawn:/sbin/mingetty tty5
6:2345:respawn:/sbin/mingetty tty6

Sorry for not being more help.  Would love to
know what you eventually come up with.

-T

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Thread

Serial console to RHEL6 on Dell R310? Jeremiah DeWitt Weiner <jdw@panix.com> - 2011-06-13 21:19 +0000
  Re: Serial console to RHEL6 on Dell R310? Tim Watts <tw@dionic.net> - 2011-06-13 23:45 +0100
    Re: Serial console to RHEL6 on Dell R310? Jeremiah DeWitt Weiner <jdw@panix.com> - 2011-06-14 15:37 +0000
      Re: Serial console to RHEL6 on Dell R310? Tauno Voipio <tauno.voipio@notused.fi.invalid> - 2011-06-14 20:25 +0300
        Re: Serial console to RHEL6 on Dell R310? Jeremiah DeWitt Weiner <jdw@panix.com> - 2011-06-16 19:35 +0000
      Re: Serial console to RHEL6 on Dell R310? Bill Marcum <bill@lat.localnet> - 2011-06-14 16:20 -0400
  Re: Serial console to RHEL6 on Dell R310? Todd <Todd@invalid.com> - 2011-06-13 20:51 -0700
    Re: Serial console to RHEL6 on Dell R310? The Natural Philosopher <tnp@invalid.invalid> - 2011-06-14 11:04 +0100
    Re: Serial console to RHEL6 on Dell R310? Doug Freyburger <dfreybur@yahoo.com> - 2011-06-14 14:32 +0000

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