


Some of the useful features that are provided by VirtualBox include It is a simple and powerful product that can run everywhere from small embedded systems, all the way up to data center deployments and even Cloud environments. Currently, VirtualBox is a cross-platform product that runs on Windows, Linux, Macintosh, and Solaris hosts. It is an easily available open-source, feature-rich, high-performance product for enterprise customers. Select root - Drop to root shell prompt.VirtualBox is a virtualization product for both personal use and enterprise usage. 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.
