Today, I wanted to reinstall one of my virtual machine which is running with Ubuntu 16.04 LTS server. Before reinstalling, I tried to backup the entire system. While searching for an easiest way to do this, I found a plausible solution in Arch Linux wiki page. I never thought that it was going to be that much simple. I copied my entire root / tree with Rsync in a single line command. Yes, it is just a one line command. While there there so many tools to backup your systems, I find this method is much easier and convenient, at least to me. Also, this method is better than disk cloning with dd command. Because It doesn’t matter if your hard drive is different size, or use different filesystem. This method will work in all cases.