Hi, OK, I'm back on this now, and need to define a bridge for qemu.
Once again, this is Ubuntu running in VirtualBox under Windows. Ubuntu is using NetworkManager, and I have defined the bridge there per http://ask.xmodulo.com/configure-linux-bridge-network-manager-ubuntu.html. This comes up as bridge0, and seems to be working just fine. I then try to start Debian-arm under qemu 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 /etc/qemu/bridge.conf has allow bridge0 Qemu starts just fine, no network-related errors, but no network interface (eth0, etc.) in Debian. Removing these lines and using slirp and Debian gets an interface just fine. Any suggestions as to where to look? Again, I'm a programmer, not a Linux admin, so I'm a bit lost there. Thanks, Jerry
