create_local_qemu_kvm_vm.md

create a virtual machine

• make sure your machine supports virtualisation

  https://linuxwebdevelopment.com/run-debian-qemu-kvm-virtual-machine-using-ubuntu-debian/

• get required tools

  $ sudo apt-get install wget qemu-utils qemu-kvm libvirt-daemon-system
  

• make yourself a working directory

  $ mkdir vm-handling
  $ cd    vm-handling
  

• get a Debian install medium (335M):

  $ wget https://cdimage.debian.org/cdimage/release/current/amd64/iso-cd/debian-10.2.0-amd64-netinst.iso
  

• create a "hard-disk" image

  $ qemu-img create debian.img 2G
  

create a virtual machine and boot

• start a virtual machine with that ISO file

  $ kvm -hda debian.img -cdrom debian-10.2.0-amd64-netinst.iso -boot d -m 512 -net user -net nic
  

• go through install

  • return, return, return ...
  • set root password, add a random user
  • return, return, return
  • choose "yes" to write disk partitioning
  • return, return, return
  • don't select any additional software to install, tab out to "OK"
  • return
  • choose sda to install booloader on
  • reboot, stop the kvm machine

• restart installed virtual machine without cdrom, but with networking localhost:5555 will get forwarded to the vm-internal port 22

  $ kvm -hda debian.img -m 512 -net user -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::5555-:22
  

• log in as root in qemu window

  # vi /etc/ssh/sshd_config
  PermitRootLogin yes
  # /etc/init.d/ssh restart
  

• now you can ssh into the machine from your local shell

  # ssh localhost -p 5555