Re: [Qemu-discuss] [Qemu-arm] Ubuntu installation shows "No network interfaces detected"

[Da Zhang]

Thanks for the suggestions. Unfortunately, neither virtio-net-pci nor
rtl8139 works for me. Yet, I haven't figured it out why. But, I found
that virtio-net-device works for me.

Thanks,
-- Da

On Fri, Apr 12, 2019 at 4:33 AM Peter Maydell <address@hidden>
wrote:

> On Thu, 11 Apr 2019 at 23:16, Da Zhang <address@hidden> wrote:
> >
> > Hi guys,
> >
> > I am trying to create an Ubuntu ARM disk image for my gem5 ARM
> experiments. The installation always shows "No network interfaces detected".
> > This is my command for running qemu:
> >
> > qemu-system-aarch64 \
> >     -cpu host \
> >     -device virtio-scsi-device \
> >     -device scsi-cd,drive=cdrom \
> >     -device virtio-blk-device,drive=hd0 \
> >     -drive
> "file=ubuntu-16.04.5-server-arm64.iso,id=cdrom,if=none,media=cdrom" \
> >     -drive
> "if=none,format=qcow2,file=ubuntu-16.04.5-server-arm64.img,id=hd0" \
> >     -pflash "ubuntu-16.04.5-server-arm64-flash0.img" \
> >     -pflash "ubuntu-16.04.5-server-arm64-flash1.img" \
> >     -m 1G \
> >     -machine virt \
> >     -enable-kvm \
> >     -nographic \
> >     -net nic,netdev=n1 \
> >     -netdev user,id=n1 \
> >     ;
>
> This command line doesn't specify any ethernet device
> interfaces, which is why you have no networking.
> I would recommend
>  -netdev user,id=mynet -device virtio-net-pci,netdev=mynet
>
> though other kinds of network device will work too,
> like the rtl8139 that Narcis suggests. virtio-net will
> give the best performance.
>
> PS: I have suggested virtio-net-pci because we recommend
> the PCI virtio over the virtio-mmio that your command
> line is using for virtio-blk. Your guest OS will need to
> have the PCI support enabled, though. There is also a
> virtio-net-device which will use virtio-mmio. If PCI
> works for you I would suggest switching your virtio-blk-device
> use to virtio-blk-pci, and similarly for virtio-scsi-pci.
>
> thanks
> -- PMM
>