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Re: [Qemu-discuss] Defining a bridge
From: |
Jerry Stuckle |
Subject: |
Re: [Qemu-discuss] Defining a bridge |
Date: |
Fri, 21 Oct 2016 15:37:32 -0400 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.4.0 |
Alexsei and all,
Well, I screwed up and responded to Aleksei directly instead of to the
list. I really do appreciate his help; he's a lot more knowledgeable
than I am in this area. In an attempt to catch up on this, here's
what's happened.
I tried loading virtio_net module; it also loaded the virtio and
virtio_ring modules, but no luck. Still no device in Debian. Aleksei
also recommended trying to load the virtio_mmio, but it does not exist
on my system.
My /etc/network/interfaces file contains the default:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
Again, this 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.
I'm also going to ask in the qemu-arm forum, just in case there's a
known problem there. But I would appreciate any other help and ideas
from Aleksei and others. Hopefully this catch-up will jog someone's memory.
Thanks again for everyone's help, especially Aleksei.
Jerry