I used kexec into nixos installer image from hetzner recovery, using nixos-generators to make the image. 1. Boot with hetzner recovery OS 2. Install Nix in it

I used kexec into nixos installer image from hetzner recovery, using nixos-generators to make the image. 1. Boot with hetzner recovery OS 2. Install Nix in it (not nixos!) 3. Install nixos-generators 4. Generate kexec-bundle image 5. run the result of 4 and continue installation from it.