Virtual Box Setup

Windows and Mac are able to emulate a Unix system when running VirtualBox - the following minimal set-up is recommended:

  • VirtualBox
  • Ubuntu 22.04.2 2G RAM 25G Disk
  • Docker Engine on Ubuntu: Docker 24.0.x and Docker compose 2.19.1

Download Virtualbox from here


Download Ubuntu LTS from here

To set up the working environment, follow these steps:

  • Open Virtualbox and create a new virtual machine.
  • Select the ISO image downloaded earlier (.iso file).
  • Choose a username and a password. Check the "Guest Additions" option (to enable features such as shared clipboard and shared folders).
  • Set the memory size to 2GB and allocate 2 CPUs.
  • Create a virtual hard disk with a size of 25GB.
  • Finish the setup process and start the virtual machine.

If you encounter the error "Username is not in the sudoers file. This incident will be reported" when attempting to execute a sudo command, follow these steps to resolve the issue:

  • Restart your virtual machine. While restaring, press the Shift key for a few seconds to get the Grub boot menu.
  • Using the Down Arrow, select "Advanced options for Ubuntu" and press Enter.
  • Select the kernel with the "recovery mode" option and press Enter to open the Recovery menu.
  • In the "Recovery menu", move over to the line "root Drop to root shell prompt", then press Enter.
  • Use the root password and press Enter to start the "maintenance mode".
  • At this point, you should be at the root shell prompt. Change the system to be mounted as read/write by running the command: mount -o rw,remount /
  • Execute the following command to add the user to the sudo group: "adduser username sudo" (use the actual username on the system).
  • Type the exit command to go back to the "Recovery menu": "Exit"
  • Use the Right Arrow to select <Ok> and press Enter.
  • Press <Ok> to continue with normal boot sequence.