IntroductionĪs a computer science student, I have found the need for a full-fledged Linux distro but ssh-ing onto a separate Linux machine (although wonderful in a pinch) started to become obnoxious. Select root - Drop to root shell prompt.Installing Ubuntu on a VM Using VirtualBox A tutorial on how to install and run Ubuntu on a new virtual machine alongside your main OS. You should see something like this: (although older Ubuntu versions won't be so colorful) Using arrows and Enter select Advanced options for Ubuntu, then Ubuntu, with Linux (recovery mode) (2nd option from the top). When the machine is booting, immediately start pressing Esc repeatedly. It works both for VMs and physical computers. It lets you make any user a sudoer by accessing the root account even if it's disabled. The slightly more complicated, but also more universal method is described below. The easy way out of this situation is described in the answer by Retr0Rob. User account is created - default user/password are vboxuser/ changeme.Login to root account is enabled - default password is changeme.

However, VirtualBox 7 will by default have 'unattended installation' enabled, which sets up Ubuntu differently: When you're logged in into that account, you should be able to use the sudo command.

A user account is created during installation and added to the sudo group.Members of group sudo are granted full sudo privileges.Virtualbox is irrelevant relevant - answer updated to account for VirtualBox 7 and its unattended installations.

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