[uml-devel] Re: [uml-user] best way for init-script to start/stop UML

["roland" <for_spam@gmx.de>]

> How can i gracefully halt a UML-machine? Is there something more simular
i think changing the cad-handler in /etc/inittab would do the trick:
in line:
ca::ctraltdel...
change
"-r" to "-h"

then you should be able to shutdown your uml with "uml_mconsole cad"

imho, it should be possible to issue init-commands to a running uml via uml_mconsole, to switch uml guest systems to whatever
init-level we like. is such feature existing or being planned ?

regards
roland



----- Original Message ----- 
From: "Sven Köhler" <skoehler@upb.de>
To: <user-mode-linux-user@lists.sourceforge.net>
Sent: Wednesday, May 05, 2004 3:41 PM
Subject: [uml-user] best way for init-script to start/stop UML


> hi,
>
> i'm about to write some init-scripts that are supposed to start/stop UML
> machines if the computer started/stopped. I think i can easily start the
> UML-kernel, but stopping it is a problem for me.
>
> I can imagine to do it with mconsole, since there is a halt-command, but
> after the issuing the halt-command in mconsole, the UML-kernel stopps
> running immediatly. I worry about the filesystems of the UML-machine
> that might get damaged.
>
> How can i gracefully halt a UML-machine? Is there something more simular
> to the issuing a halt-command inside the UML?
>
> Since using mconsole is kind of tricky, i'd like to use the
> old-fashioned way with signals. What about SIGINT, SIGTERM, etc.
> Is it safe to send any of those to the UML-kernel? Is any of the signals
> simular to mconsole's halt-command?
>
> Another way could be to send the halt-command directly to the
> UNIX-Socket that mconsole would use. Is there any way of soing that from
> the command-line?
>
> Thx
>    Sven
>
>
>
>
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