Unable to install yum on Ubuntu 20.04 (AWS EC2)

Question

My command is sudo apt-get install yum

The result is ：

Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package yum

Answer 1

I try it successful.

I must install rpm first：

sudo apt-get install rpm

And then install the yum：

sudo apt-get install yum