On 25 June 2015 at 08:40, Markus Armbruster <arm...@redhat.com> wrote: > Peter Maydell <peter.mayd...@linaro.org> writes: > >> Now we have virtio-pci, we can make the virt board's default block >> device type be IF_VIRTIO. This allows users to use simplified >> command lines that don't have to explicitly create virtio-pci-blk >> devices; the -hda &c very short options now also work. >> >> This means we also need to set no_cdrom to avoid getting a >> default cdrom device -- this is needed because the virtio-blk >> device will fail if it is connected to a block backend with >> no media, which is what the default cdrom device typically is. >> Providing a cdrom with media via -cdrom will still work. > > It'll create a virtio-blk device with non-removable medium, won't it?
Yes, I think so. Mostly I cared that -cdrom won't make qemu die with a confusing error. (Without no_cdrom, qemu dies even if you don't say -cdrom, because of the default empty drive.) >> The command line will be changed to include 'if=none', as the > > will have to be changed Yes. -- PMM
