I am trying to build a DNS simulation by using bind on several user mode linux (UML) instances on the same computer. I have UML installed and working, but I can't figure out how to install anything.
I set up UML with this tutorial, using the linux-5.3.11 kernel. Following this tutorial, I tried running sudo apt-get install -y bind9, but apt-get is not installed in the UML instance. So I tried to install it, as suggested in this answer, but dpkg is not installed.
How do I install a package in UML?