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Re: [Qemu-arm] Defining a bridge

From: Jerry Stuckle
Subject: Re: [Qemu-arm] Defining a bridge
Date: Mon, 24 Oct 2016 21:09:52 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0

Anyone have an idea on this?

On 10/21/2016 3:45 PM, Jerry Stuckle wrote:
> Hi, all,
> To start out, I am a programmer, not a Linux administrator.  So please
> be gentle with me - I'm in over my head here. :)
> To start, my setup is: Windows 7 as the base OS with two nics, wired and
> wireless (only one active at a time).  Under this I have Oracle Virtual
> Machine running Ubuntu 4.4.0-38-generic (latest stable release).  I have
> set up a bridge in Ubuntu's Network Manager as described on
> http://ask.xmodulo.com/configure-linux-bridge-network-manager-ubuntu.html.
>  The bridge is defined as "bridge0" and works correctly in Ubuntu.
> I start QEMU under Ubuntu with:
> qemu-system-arm -m 1024M \
>       -sd /export/armhf.qcow2 \
>       -M vexpress-a9 \
>       -cpu cortex-a9 \
>       -kernel /export/boot/vmlinuz \
>       -initrd /export/boot/initrd.img \
>       -append "root=/dev/mmcblk0p2" \
>       -device virtio-net-device,netdev=net0 \
>       -netdev 
> bridge,br=bridge0,id=net0,helper=/usr/lib/qemu/qemu-bridge-helper
> Guest system is Debian 3.2.0-4-vexpress, again the latest stable
> version.  I get a SLIRP connection just fine when I don't specify the
> -device and -netdev parameters.  The "lshw" shows the driver to be
> smsc911x, but I don't know how to relate that to which NIC is being
> emulated (it at least works).
> When I do specify the -device and -netdev parameters, I get no network.
> The log shows nothing unusual other than no network device is found.
> Are there any known problems with a setup like this?  If not, does
> anyone have an idea as to what I am doing wrong?  I appreciate any and
> all suggestions.
> Jerry

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