Re: [uml-user] Re: UML hangs if pipe'd to

[Kyrre M B. <Kyr...@iu...>]

Hi,

I tried the suggested <&- with no luck either on the command line nor in 
the perl-wrapper. Thanks for the tip, though. :)


On Wed, 27 Jul 2005, Matt Palmer wrote:

> On Wed, Jul 27, 2005 at 11:33:44AM +0200, Kyrre M Begnum wrote:
>> I am using uml in a setting where i am only interested in the output of
>> its console, and won't give it any console input.
>> I have encountered a phenomenon that if i pipe something to the uml
>> command the boot freezez at:
>>
>> echo something | ./linux ......
>> .
>> .
>> .
>> kjournald starting.  Commit interval 5 seconds
>> EXT3-fs: mounted filesystem with ordered data mode.
>> VFS: Mounted root (ext3 filesystem) readonly.
>> *hang*
>
> Aaah, yes.  I recently tangled with this (or a closely related) problem in
> GUML.  I think you'll find that the UML isn't actually hanging, it's just
> that no output is produced.  The way I solved the problem was to ensure that
> the standard input of the UML process is closed.  A quick run through the
> bash manpage suggests that
>
> echo something | ./linux ...... <&-
>
> should be a suitable invocation.
>
> Give it a whirl, if it doesn't work you're only out a few keystrokes.
> <grin>
>
> - Matt
>

---------------------
Kyrre M Begnum
Rom 1.755 7.etg
Tfl: 22453276