- to LXD container
https://discuss.linuxcontainers.org/t/made-a-script-to-convert-a-kvm-vm-to-an-lxd-rootfs/981/2
https://www.reddit.com/r/LXD/comments/8b4q9a/how_to_build_the_lxdp2c_toolapplication_to/
- to LXC container
https://snikt.net/blog/2014/03/22/convert-kvm-image-to-lxc-container/
http://wiki.deimos.fr/LXC_:_Install_and_configure_the_Linux_Containers#Convert.2FMigrate_a_VM.2FHost_to_a_LXC_container