[yocto] runqemu qemux86

[jfabernathy]

On 05/22/2012 01:42 PM, Scott Garman wrote:
> 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. :)
>

I did try it out on core-image-minimal and I can ping anything I have 
the IP for.  Not sure how you get the DNS connections working in qeum.

JIm A

> Scott
>