[yocto] runqemu qemux86

[Scott Garman]

On 05/22/2012 10:26 AM, James Abernathy wrote:
>
>
> On Tue, May 22, 2012 at 1:04 PM, Scott Garman <scott.a.garman at intel.com
> <mailto:scott.a.garman at intel.com>> wrote:
>
>     On 05/22/2012 08:15 AM, James Abernathy wrote:
>
>
>
>         On Tue, May 22, 2012 at 10:45 AM, Autif Khan
>         <autif.mlist at gmail.com <mailto:autif.mlist at gmail.com>
>         <mailto:autif.mlist at gmail.com <mailto:autif.mlist at gmail.com>>__>
>         wrote:
>
>             On Tue, May 22, 2012 at 7:43 AM, jfabernathy
>         <jfabernathy at gmail.com <mailto:jfabernathy at gmail.com>
>         <mailto:jfabernathy at gmail.com <mailto:jfabernathy at gmail.com>>__>
>         wrote:
>          > when testing an image using runqemu qemux86, can you get
>             networking to
>          > work?? mine comes up disabled.  I want to test an application
>             that requires
>          > Internet access.
>
>             Yes, I am able to get networking to work out of the box (bitbake
>             core-image-sato, etc.) Internetworking does not work out of
>         the box.
>
>             This is accomplished over tun/tap devices - I do not know
>         much about
>             these virtual networking devices - they have never failed
>         for me :-)
>
>             The IP address of the emulated machine is 192.168.7.2 - The
>         IP address
>             of host machine is 192.168.7.1
>
>             You can not (out of the box) communicate with machines other
>         than the
>             host machine - so that would included internet etc.
>
>             So, if you have an ssh server or a web-server running on the
>         host
>             machine - you can ssh to the host machine or browse a
>         webpage using
>             the browser. Alternatively, you can run a proxy server on
>         the build
>             machine and use it to get to the internet.
>
>             You can run ifconfig to see if the network is configured
>         properly on
>             the emulated machine in the terminal. It should show
>         192.168.7.2 - if
>             you do not see this - you do not have networking working.
>
>
>         I can see the tap0 interface on my host at 192.168.7.1 by using
>         ifconfig.
>         I can also see the eth0 on the qemu machine at 192.168.7.2
>         However, my host has an ip of 10.0.1.54 with a AP gateway at
>         10.0.1.1.
>         Somehow I need to connect the networks and I'm not sure exactly
>         how to
>         do that so that DNS servers get used and the traffic all flows.
>         Jim A
>
>
>     There is some sort of routing or IP forwarding bug in the sato
>     images that is due to be fixed soon. One thing I've found is you can
>     actually get out to the internet for about 30 seconds or so
>     immediately after the image boots. My suspicion is that some conman
>     script is killing the route after boot. core-image-minimal works
>     consistently, and since minimal doesn't use conman, I'm guessing
>     that is the culprit.
>
>     https://bugzilla.yoctoproject.__org/show_bug.cgi?id=2329
>     <https://bugzilla.yoctoproject.org/show_bug.cgi?id=2329>
>
>     Scott
>
> So if I read this right,  I don't need any route or bridge commands to
> make this work. If the bug gets fixed runqemu qemux86 should setup the
> environment correctly so the web-webkit should get out to the internet
> via the host machine connection?
> JIm A

Correct.

I'm hesitant to say this, but I'm hoping to have the bug fixed and patch 
submitted by the end of this week. Hopefully I haven't just jinxed 
myself. :)

Scott

-- 
Scott Garman
Embedded Linux Engineer - Yocto Project
Intel Open Source Technology Center