$ kvm -drive if=none,cache=none,media=cdrom,id=drive_cd,readonly=on qemu-system-x86_64: -drive if=none,cache=none,media=cdrom,id=drive_cd,readonly=on: Must specify either driver or file
$ kvm --version QEMU emulator version 3.1.0 (Debian 1:3.1+dfsg-8~deb10u1) Copyright (c) 2003-2018 Fabrice Bellard and the QEMU Project developers
signature.asc
Description: OpenPGP digital signature
