Re: [QUERY] User-Mode Linux and /dev/tty*

From: Richard Weinberger
Date: Tue Jul 16 2013 - 12:34:52 EST


Am 16.07.2013 18:26, schrieb Ramkumar Ramachandra:
> Richard Weinberger wrote:
>> UML does not have virtual consoles.
>
> Then why do I see this on my UML box?
>
> # ls /dev/tty* | wc -l
> 113
>
> Why is it creating unusable devices? Is drivers/tty.c responsible for
> this? What is it exactly?

This is not UML specific.
Are you using devtmpfs?

>> I'm not running HEAD, but opensuse 12.3 (with systemd) works on UML.
>
> Also, what's with all the
>
> xterm_open : run_helper failed, errno = 2

2 is ENOENT.
Do you have uml-utils installed?

> messages? (I installed xterm, but it wasn't very enlightening)
> How is drivers/xterm.c supposed to work? And what is mconsole?

the xterm drivers opens a xterm on the host side using port-helper.
Mconsole is the management console.
Please read the documentation.

Thanks,
//richard

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