Philippe Mathieu-Daudé <phi...@redhat.com> writes: > On 4/3/20 9:39 AM, Peter Maydell wrote: >> On Fri, 3 Apr 2020 at 06:18, Aijaz.Baig <aijaz.b...@protonmail.com> wrote: >>> I would now like to add a hard disk for persistent storage and then >>> transfer control from busybox initrd based rootfs over to the full fledged >>> version offered with Linux. So I add it to the command line >>> >>> `sudo qemu-system-arm -m 1024M -M vexpress-a9 -D qemu.log -drive >>> if=none,format=raw,file=disk.img -kernel >>> buildroot-2019.02.5/output/images/zImage -dtb >>> buildroot-2019.02.5/output/images/vexpress-v2p-ca9.dtb -append >>> "console=ttyAMA0,115200 kgdboc=kbd,ttyAMA0,115200 ip=dhcp nokaslr" -initrd >>> buildroot-2019.02.5/output/images/rootfs.cpio -nographic -net nic -net >>> bridge,br=mybridge -s >> >> This command line creates a "drive" object but doesn't plug it in to anything >> (it's like asking QEMU to model a board, with a hard drive sat next to it >> on the desk but no cable between them :-)) > > Should QEMU warn the user about unplugged drives? > > Or is it an expected feature (these drives might be hot-plugged later?)
For what it's worth, it warns about unused network backends, but not about unused block or character backends. All of them can be connected later in the monitor.
