Re: [uml-user] How do I prevent uml_switch from registering a net device "tap0"?

[Peder C. <pc...@po...>]

On Tuesday 23 November 2004 20:42, you wrote:
> On Tuesday 23 November 2004 20:22, Peder Chr. N=F8rgaard wrote:
> >
> > I invoke "uml_switch -tap tap0" but no "tap0" net device pops up.
> > "ifconfig" denies the existence of "tap0", "ifupdown" does not react to
> > the invocation, and the "/proc/net/dev" file has no "tap0" entry.
>
> That is not supposed to create tap0, just to use it.

> Use tunctl to create the file, and go read the "Virtual Networking"
> tutorial link on the main site.
>

I stand corrected; this is the danger of using a smart system like Debian t=
hat=20
does a lot of things for you so you don't really get to learn the basics. =
=20
Well, I still think the benefits of Debian outweighs the dangers.

Thanks for your answer; it really helped me to get this particular system=20
running.  The thing is, Debian packaging of uml-utilities calls tunctl for=
=20
you and creates the tap0 entry automatically - but only if you spell=20
correctly the relevant line in the tap0 stanza of the /etc/network/interfac=
es=20
file.

Which I didn't.  Now, when I spell correctly, it works like a charm. So, th=
e=20
answer is, to prevent *Debian* uml_switch from registering net device "tap0=
":=20
just make a spelling error in the "tap0" stanza!

> > I invoke "uml_switch -tap tap0" but no "tap0" net device pops up.
>
> And this config cannot=20
> work anywhere - not even on 2.6. You probably were using a subtly differe=
nt
> config when it worked.

Sorry, here I was not precise.  The invocation also has a "-unix=20
<filenameofctl>" option.

Thanks again
=2D-=20
Peder Chr. N=F8rgaard     e-mail: pc...@po...
Gefionsvej 19           spejder-e-mail: ha...@ga...
DK-8230 =C5byh=F8j          tel: +45 87 44 11 99
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