nbdkit --filter=cow --filter=xz curl \ https://dl.fedoraproject.org/pub/alt/risc-v/ disk-images/fedora/rawhide/20190703.n.0/ Developer/Fedora-Developer-Rawhide-20190703.n.0-sda.raw.xz qemu-system-riscv64 \ -nographic \ -machine virt \ -smp 8 \ -m 2G \ -drive file.driver=nbd,file.host=localhost, file.port=10809