[uml-user] Re: [uml-devel] "Configuring network interfaces...execvp of 'uml_net' failed - errno = 2" error msg

[Blaisorblade <bla...@ya...>]

On Friday 17 February 2006 14:47, Stefano Melchior wrote:
> On Fri, Feb 17, 2006 at 01:07:50PM +0100, Blaisorblade wrote:
> Hi Paolo,
>
> > > If you use the 2.4.x uml kernel the UML image work fine with network,
> > > but if you use an available 2.6.x uml image or a 2.6.x image of mine
> > > the uml bootstrap phase hangs with the following error message:
> >
> > Indeed on the same machine and with same config? It's strange, I never
> > saw

> yes, first I tried my own configuration, then I downloaded a prebuild uml
> kernel from http://uml.nagafix.co.uk/ and I tried with this one. Same
> error again.
> Then I extracted the configuration from that image and I rebuild with that
> config, same error for the same problem.

> ste@etinarcadiaego{~}$ ll /usr/lib/uml/uml_net
> -rwsr-x---  1 root uml-net 19836 2004-04-15 03:03 /usr/lib/uml/uml_net

Ok, thanks for this informative info. This is the solution.

In short, echo $PATH | grep  /usr/lib/uml, and if needed man 3 execvp, could 
enlighten you... or even the fact that I do:

# ls -l /usr/bin/uml_net
-rws--x--x  1 root root 22856 16 feb 18:49 /usr/bin/uml_net

if you want the full story, instead, IOW:

Debian has his own very non-standard packaging for uml_utilities, and patches 
UML to cope with it. For instance, uml_switch has different defaults on UML 
(the socket goes into /var/run instead of /tmp, in UML).

And (but this is the first time I hear this) you have uml_net in /usr/lib/uml 
rather than /usr/bin. Which would be a better choice, btw... but isn't 
implemented in mainline (we maybe should).

> Another info: I used either the kernel.org sources and the debian's
> linux-source(s).

But you're using a vanilla UML without the forward ports of all 2.4 patches 
(you're using linux-source(s), not a possible uml-linux-source(s)).

For the future packaging: I do believe that Debian's defaults have been 
actually planned while uml_utilities haven't, so I like the idea of switching 
to Debian paths as defaults, and possibly using the current ones as 
fallbacks.
-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

		
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