Qemu Headless Install - Urs Riggenbach
https://ursrig.com/Qemu-Headless-Installqemu-system-x86_64 -hda /dev/sdc1 -m 1500 --enable-kvm -curses -cdrom images/debian-stable.iso -boot d. The Debian installer supports headless mode, but we have to add two settings at the boot prompt to make it work with curses. 1. Fire up qemu with the command above. Wait a few seconds, the screen will turn black after loading syslinux.
QEMU - Builders | Packer by HashiCorp
https://www.packer.io/docs/builders/qemuqemu_binary (string) - The name of the Qemu binary to look for. This defaults to qemu-system-x86_64, but may need to be changed for some platforms. For example qemu-kvm, or qemu-system-i386 may be a better choice for some systems. qmp_enable (bool) - Enable QMP socket. Location is specified by qmp_socket_path. Defaults to false.
QEMU - ArchWiki - Arch Linux
https://wiki.archlinux.org/title/QEMU$ qemu-system-x86_64 -drive file=disk_image,if=virtio,cache=none. Use the native Linux AIO: $ qemu-system-x86_64 -drive file=disk_image,if=virtio,aio=native,cache.direct=on. If you are running multiple virtual machines concurrently that all have the same operating system installed, you can save memory by enabling kernel same-page merging.