Installing Ubuntu inside Windows using VirtualBox
5/08/2010 06:55:00 PM // 0 comments // MiRuL // Category: Ubuntu Desktop //The screenshots in this tutorial use Ubuntu 10.04, but the same principles apply also to Ubuntu 8.04, 9.04, 9.10, and any future version of Ubuntu. Actually, you can install pretty much any Linux distribution this way.
Introduction
VirtualBox allows you to run an entire operating system inside another operating system. Please be aware that you should have a minimum of 512 MB of RAM. 1 GB of RAM or more is recommended.
Comparison to Dual-Boot
Many websites (including the one you're reading) have tutorials on setting up dual-boots between Windows and Ubuntu. A dual-boot allows you, at boot time, to decide which operating system you want to use. Installing Ubuntu on a virtual machine inside of Windows has a lot advantages over a dual-boot (but also a few disadvantages).
Advantages of virtual installation
- The size of the installation doesn't have to be predetermined. It can be a dynamically resized virtual hard drive.
- You do not need to reboot in order to switch between Ubuntu and Windows.
- The virtual machine will use your Windows internet connection, so you don't have to worry about Ubuntu not detecting your wireless card, if you have one.
- The virtual machine will set up its own video configuration, so you don't have to worry about installing proprietary graphics drivers to get a reasonable screen resolution.
- You always have Windows to fall back on in case there are any problems. All you have to do is press the right Control key instead of rebooting your entire computer.
- For troubleshooting purposes, you can easily take screenshots of any part of Ubuntu (including the boot menu or the login screen).
- It's low commitment. If you later decide you don't like Ubuntu, all you have to do is delete the virtual hard drive and uninstall VirtualBox.
- In order to get any kind of decent performance, you need at least 512 MB of RAM, because you are running an entire operating system (Ubuntu) inside another entire operating system (Windows). The more memory, the better. I would recommend at least 1 GB of RAM.
- Even though the low commitment factor can seem like an advantage at first, if you later decide you want to switch to Ubuntu and ditch Windows completely, you cannot simply delete your Windows partition. You would have to find some way to migrate out your settings from the virtual machine and then install Ubuntu over Windows outside the virtual machine.
- Every time you want to use Ubuntu, you have to wait for two boot times (the time it takes to boot Windows, and then the time it takes to boot Ubuntu within Windows).
Installation Process
The first thing you have to do is obtain VirtualBox. Visit the VirtualBox website's download page. Get a Ubuntu disk image (.iso file).

After you launch VirtualBox from the Windows Start menu, click on New to create a new virtual machine. When the New Virtual Machine Wizard appears, click Next.

You can call the machine whatever you want. If you're installing Ubuntu, it makes sense to call it Ubuntu, I guess. You should also specify that the operating system is Linux.

Click Next.







The next thing to do to make the (currently blank) virtual hard drive useful is to add the downloaded Ubuntu disk image (the .iso) boot on your virtual machine. Click on Settings and Storage. Then, under CD/DVD Device, next to Empty, you'll see a little folder icon. Click that, and you can select the Ubuntu .iso you downloaded earlier.

Then double-click your virtual machine to start it up.



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