How to run an Ubuntu Desktop virtual machine using VirtualBox 7

 

 

https://ubuntu.com/tutorials/how-to-run-ubuntu-desktop-on-a-virtual-machine-using-virtualbox

 

 

 

 

 

How to run an Ubuntu Desktop virtual machine using VirtualBox 7

 

 

 

 

 

 

1. Create a new virtual machine
2. Install your image
3. Explore Virtual Box
4. Troubleshooting

 

 

 

 

 

 

 

 

 

Download an Ubuntu Image

 

https://www.linux.org/pages/download/

 

Choose any image that you want to download.

To download 'Ubuntu', click 'Download Ubuntu' under the Ubuntu image, and click 'Download Ubuntu Desktop'

 

 

 

 

 

 

 

 

 

Download and install VirtualBox

 

 

https://www.virtualbox.org/wiki/Downloads

 

If you are using Windows, click 'Windows hosts' under the VirtualBox 7.0.14 platform pakages.

 

 

 

Then, run VirtualBox

 

VirtualBox

 

 

 

 

 

 

 

 

Create a new virtual machine

 

 

 

 

Create a new virtual machine

 

 

Click 'New' to create a new virtual machine.

 

 

 

 

 

 

Create a new virtual machine

 

 

 

Fill in the appropriate details:

• Name: Your virtual machine's name
• Machine Folder: The pathway where your virual machines will be stored so you can resume working on them whenevr you like.
• ISO Image: The file you dowloaded from the Ubuntu website

 

 

 

 

 

 

 

 

Create a user profile

 

 

Create a user profile

 

To run the automatic install we need to prepopulate our username and password in addition to our machine name so that it can be configured automatically during First boot.

 

 

The default credentials are:

• Username: vboxuser
• Password: changeme

 

It is important to change these values since the defaults will create a user without sudo access

 

 

 

 

 

 

 

 

 

 

Define the Virtual Machine's resources

 

 

We can specify how much of our host machine's memory and processors the virtual machine.

Recommand values are with around 8 GB of RAM (althought 4GB will still be usable) and 4 CPUs.

 

 

 

 

Hardware

 

 

 

 

 

Then we specify the size of the hard disc for the virtual machine. For Ubuntu we recommend around 25 GB as a minimum. If you want to pre-allocate the full amount, check the 'Pro-allocate Full Size' check box. This will improve performane but might take up unnecessary space.

 

 

 

 

Virtual Hard disk

 

 

 

 

Click 'Next' to continue and view a summary of your machine setting.

 

 

 

 

Summary

 

 

 

After this click 'Finish' to initialize the machine.

 

 

 

 

 

 

 

 

 

 

 

Install your image

 

 

 

Install your image

 

 

A message saying 'Powering VM up...' will be shown, and your desktop window will appear.

 

 

 

 

 

Set up the username and password.

 

 

 

 

 

 

 

 

Install

 

Once the installation completes, the machine will automatically reboot to complete the installation.

 

 

 

Install

 

Finally you are able to see the Ubuntu log-in screen.

 

 

 

 

 

 

 

 

 

 

Explore Virtual Box

 

 

Ubuntu

 

 

Now we can see our Ubuntu Desktop.

 

 

 

 

 

sudo apt update && apt upgrade

 

 

 

To get everything updated to the latest versions uses these command:

 

sudo apt update && sudo apt upgrade

 

sudo nap refresh

 

 

 

 

 

 

 

 

 

 

 

 

Troubleshooting

 

 

 

 

 

 

error

 

 

To update and upgrade Ubuntu, I typed 'sudo apt update && sudo apt upgrade'

But it said '___ is not in the sudoers file. The incident will be reported.'

 

 

 

 

 

 

 

made a user profile

 

 

 

So, I made new user profile and switch user to new one.

But it didn't work.

 

 

 

 

 

su boot

 

I came back to administrator user (name: Ubuntu) and searched up the solution.

And I can get a solution from here.

 

Shortly, type

su root

 

in your cmd on administrator.

 

Then you can see the ubuntu@Ubuntu is changed to root@Ubuntu: /home/ubuntu

 

 

 

 

 

 

apt-get install sudo -y

 

 

 

Install sudo package using 

apt-get install sudo -y

 

 

 

add ubuntu to sudo group

adduser ubuntu sudo

 

 

 

Change permissions of /etc/sudoers

chmod 0440 /etc/sudoers

 

 

 

And the reboot the machine using command reboot or manually.

 

 

 

 

 

 

sudo su

 

 

Try to login as root user using sudo su command.

 

 

 

 

 

 

 

 

 

sudo apt update && apt upgrade

 

And type

sudo apt update && apt upgrade

 

in the root@Ubuntu: /home/ubuntu.

 

 

Successfully work!