Problems installing Docker Machine on Windows from a Ubuntu Server

I have problems installing a docker machine on windows from an Ubuntu server (20.04.5). I used this manual.

After creating the machine on windows i got following output:

Thanks in advance.

I resolved this problem comment the CD-ROM repository source directly from /etc/apt/sources.list

docker-machine was deprecated (=not maintained, not supported) years ago in favor of Docker Desktop. If you have problems with docker-machine, you are pretty much on your own.

You might want to consider migrating to Docker Desktop.

Also, please do not paste text content as image, as it’s harder to read and can not be searched for in the forum search.