Support for multiple consoles

Jon Smirl jonsmirl at
Sat Sep 13 08:43:58 EST 2008

On Fri, Sep 12, 2008 at 6:18 PM, Michael Carey <MCarey at> wrote:
> Hi All,
> I am using ELDK 3.1.1 on a mpc5200 platform with a CoralP pci card.  I also connecting a keyboard and mouse.  When I compile the code without a virtual console, then my terminal session rules.  I can type with my terminal keyboard and everything seems fine.
> When I compile with a virtual console, then my embedded lcd displays text and my usb keyboard works.  Everything is great.
> Is there a way to switch back and forth between my embedded console to my terminal console?  I have tried console=ttyS0, but that does not seem to do anything.
> When I list my devices: 'ls /dev' I only get tty, ttyS0, ttyS1, and ttyS2.  I do not see a tty0.
> Is there a way to run multiple consoles on this configuration? If not, does to ELDK 4.x support this?

You should be able to get both consoles working. You probably aren't
running a login process on the second console. I haven't done this
recently, but reading about getty should give you some clues. This
used to be controled through inittab but inittab is gone on my desktop
so I don't know what controls it anymore.

> Thanks in advance for any information or guidance.
> Michael Carey
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Jon Smirl
jonsmirl at

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