KVM on ARM64 (Raspberry Pi 4)

• install Ubuntu
• install QEMU
  • sudo apt install qemu-system-arm qemu-efi-aarch64
  • sudo adduser ubuntu kvm
  • re-login
• install Alpine guest
  • wget https://dl-cdn.alpinelinux.org/alpine/v3.15/releases/aarch64/alpine-virt-3.15.4-aarch64.iso
  • truncate -s 10G hd.raw

  • run

      qemu-system-aarch64 \
          -nodefaults -nographic \
          -machine virt -cpu host -accel kvm -smp 2 -m 2G \
          -bios /usr/share/qemu-efi-aarch64/QEMU_EFI.fd \
          -blockdev driver=file,node-name=cd,filename=alpine-virt-3.15.4-aarch64.iso,read-only=on,force-share=on -device virtio-blk-device,drive=cd \
          -chardev stdio,id=screen,mux=on,signal=off -serial chardev:screen -mon screen \
          -netdev user,id=net,ipv4=on -device virtio-net,netdev=net,mac=02:00:00:00:00:01 \
          -blockdev driver=file,node-name=hd,filename=hd.raw -device virtio-blk-device,drive=hd
    

• setup Alpine
  • echo -en 'n;p;1;;+512M;n;p;2;;;w;' | tr ';' '\n' | fdisk /dev/vda
  • mkfs.vfat /dev/vda1
  • echo "/dev/vda1 /media/vda1 vfat rw 0 0" >> /etc/fstab
  • mkdir /media/vda1
  • mount -a
  • setup-alpine -e
  • add ssh-key mkdir ~/.ssh && echo '...' > ~/.ssh/autorized_keys
• optional: setup docker
  • uncomment community repo in /etc/apk/repositories
  • apk update
  • apk add e2fsprogs
  • mkfs.ext4 /dev/vda2
  • echo "/dev/vda2 /var/lib/docker ext4 rw 0 0" >> /etc/fstab
  • mkdir /var/lib/docker
  • mount -a
  • apk add docker
  • rc-update add docker boot
  • service docker start
  • test: docker run --rm -it alpine
• optional: setup k3d
  • wget -O /usr/local/bin/k3d https://github.com/rancher/k3d/releases/download/v3.2.0/k3d-linux-arm64
  • chmod +x /usr/local/bin/k3d
  • good idea? lbu add /usr/local/bin
  • k3d cluster create raspi -a 1 -p 80:80@loadbalancer
  • remote ssh root@alpine '/usr/local/bin/k3d kubeconfig get -a | sed -e "s/0.0.0.0/$(hostname)/"'
  • test: kubectl --context k3d-raspi run -it alpine --image=alpine --rm
• save config
  • lbu commit
• QEMU docs