Installing Ubuntu on VirtualBox
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The instructions below provide easy steps, which students have used
successfully to install VirtualBox and Ubuntu within VirtualBox for
the purpose of coursework. However, a lot of information is
available on the Web and Google is your friend. For everything I
am describing here there are on-line tutorials, forums, video
tutorials, step-by-step guides, walkthroughs, you-name-it. So if
something doesn't work, do your own research before declaring defeat.
These are the steps I followed to install Ubuntu on VirtualBox on my Intel-based MacBook Pro laptop, using Oracle VM VirtualBox Manager 5.0.4 r102546.
Please send feedback if you have suggestions on improving this. I don't create VMs for a living :)
VirtualBox allows you to install additional stuff called "guest
additions", which are basically sets of tools and device drivers that
will improve usability (e.g., a bigger window!). You
should absolutely install them following the following few steps
(inspired from this
- Download an Ubuntu ISO-image from here (e.g., the "desktop" version). Save the ISO file (called ubuntu-X.Y-desktop-i386.iso for Ubuntu 32-bit version X.Y, or ubuntu-X.Y-desktop-amd64.iso for Ubuntu 64-bit version X.Y) somewhere on your machine.
- Download VirtualBox from the VirtualBox Web site.
- Obviously you need to select the version for your own host OS (the guest OS will be Ubuntu)
- Install VirtualBox using the easy step-by-step installer
- See the VirtualBox User Manual for all details. (I actually never looked at it since everything is so intuitive.)
- Start VirtualBox by double-clicking on its icon or whatever you do
on your OS to start an installed application.
- Click on the "New" blue sun-looking icon in the VirtualBox GUI to
create a new VM, and start following the instructions. They are very
detailed and self-explanatory, but I detail my steps below.
- Pick a name for your VM (I use something like "Ubuntu_VBox").
- Select "Linux" and "Ubuntu (64-bit)" for the Operating System and Version
menus (the installer is smart enough to do this automatically if
your VM name contains the word "ubuntu"). Click "Continue".
- On the next panel, select a RAM size for your VM.
The default should be fine, but given the RAM size these days you can likely
pick 1GiB (1024 MiB) as opposed to the recommended size. Click "Continue".
- On the next panel, select the "Create a virtual hard drive now" option.
- On the next panel ("Hard Drive File Type") you can leave the default setting unchanged and click "Continue".
- On the next panel, select "Dynamically allocated" (most likely the best choice unless
you're after performance).
- On the next panel, specify where you want the file that contains
your new VM's disk space to be located. I always use the default.
Hit the "Create" button.
- Once you've completed the hard disk creation, your VM instance will
show up on the left panel of the main VirtualBox window saying "Powered
off". The right panel displays information about that instance.
Double-click on the VM instance showed on the left panel. This will pop
up a window and explains to you about "mouse capture". Essentially, if
you click in the running VM window the mouse will be trapped there and
you need to hit a key to recover your "real" mouse. Read the instructions
in the dialog box, they are very clear.
- A new panel pops up. Set the path (using the file explorer thingy)
to the ISO Ubuntu image file you have downloaded in Step #1. Click "Start".
- At this point you're entering the Ubuntu configuration
(remember that your mouse may be trapped and released by hitting
a key.) You may see some error message about the BIOS, but in fact
it's just a warning, so just ignore it. If you've installed Ubuntu
before, you now know what to do. If not, continue reading.
- The instructions below vary with every Ubuntu release, and I am too
lazy to update all this.
- Click on "Install Ubuntu" and proceed. Selecting "Download updates while installing" is a good idea. Click on "Continue", and then click "Install Now" after selecting that it's fine to Erase the disk and install Ubuntu (this is the virtual disk, so don't panic). If you want to customize your partitions, do that (there are many on-line tutorials about this).
- The installation will take a while, but you
should see some moving Ubuntu progress bar. Along the way you'll be
asked a few easy questions that you have to answer (time zone,
keyboard, etc.), as well as your name, hostname, user name, and
password. These are for the Ubuntu machine, just like on a real
system you'd be installing. Select the security options you want
(you can opt out of typing your password, you can encrypt your VM
hard disk, etc.). This likely doesn't matter much for the purpose
of a course, but it's up to you, especially if you plan on using the
VM instance for a wide range of purposes.
- When all files have been downloaded/installed, which can take a
while, you have to click on "Restart". You'll have to press
enter to answer a question about ejecting a disk at some point (just
press Enter) and may seen some cryptic messages that you can most
likely ignore (things about IO devices). If things get frozen, fear not.
Just close the Ubuntu Window, and select the "Shutdown" option. Then
double-click on your VM in the main VirtualBox
window again (left panel). Ubuntu should start right away in a new window.
- You're now "in" Ubuntu.
The Ubuntu interface evolves and changes regularly. The package manager
will likely pop up and it's a good idea to update packages. What I
typically do then is find a way to start a Terminal (i.e., a
Shell), and then I'm golden. In Ubuntu 15.04-desktop I did this by
clicking on the purple/vortex search button at the top left of the dock
and searched for the string "Terminal". I then dragged the Terminal icon onto the dock to the left, and off I go.
One very convenient feature of VirtualBox is that it allows you to
share a folder between your host (i.e., your original OS) and your guest
(i.e., your Ubuntu VM instance). Creating a shared folder, which can only
be done after you've installed the Guest Additions (see above) is done in
the following steps:
- One your VM instance is running, click in the "Devices" drop-down menu
of VirtualBox and select the "Insert Guest Additions CD Image..." option,
and click "Run" to confirm that you want to do this. Then authenticate by
typing your password (that is, the password for your user account on your
Ubuntu VM). A terminal will open and show progress and eventually prompts
you to "Press Return to close this window...". (This used to be much more complicated in previous versions of Virtual Box.)
- That's it. Now shutdown off your VM (by clicking on the shutdown icon in the top-right corner of the Ubuntu desktop) and restart it from the main VirtualBox window. Guest addition should have been installed. This affords all types of improved ergonomics (e.g., resizing the window).
If you want your VM to have multiple cores, which is likely something you want,
you want to click on the Settings golden wheel after selecting your VM in the left-side
panel, and in the System tab set the number of cores to an appropriate number.
- In the "Devices" drop-down menu of VirtualBox (once your VM instance
is running), select "Shared Folders..." and then select the "Shared Folders
Settings..." item. This will pop up a small window. There is a blue icon
with a green plus sign on the right-hand side to add a new shared folder.
Click this icon.
- You now have a new pop-up window. As "Folder Path", select a path to
the directory on your host that you want visible from your
guest. You should create a directory on your
host system, somewhere that's convenient, with a reasonable name (e.g., "MySharedFolder"). Using the pull-down menu for
"Folder Path" and clicking on "Other..." you can navigate your host's file
system and click on the folder. You then type in a name for the shared
folder. This is the name that will be visible from the guest (i.e., your
Ubuntu VM instance). Let's use the same Folder name, "MySharedFolder".
Finally, select the "Auto-mount" and "Make permanent" options in the pop-up
window. You will see your shared folder appear under the "Machine Folders"
heading in the pop up. Finally, click "OK".
- Restart your VM instance (by clicking on the "shutdown" icon in the
top-right corner of your Ubuntu window), and restart it from the main
- Once your VM instance has restarted and you're logged in, cd
to directory /media (typing cd /media). An ls
should show you your shared folder (with an "sf_" in front)!
- There is one last issue to address. The shared folder is owned by the
administrator. This is you, but it gets annoying to always had to "sudo"
everything that has to do with that directory. To allow you to visit that
directory without constantly having to type your password, your username
must be added to the "group" called vboxsf. Assuming that your username is
"casanova", to do this you would type the command sudo usermod -a -G
vboxsf casanova (if you forget the "-a" then bad things will happen).
- Shutdown/restart your VM instance one last time, and you're set. From
now on, you can always use the /media/sf_MySharedFolder/ directory to
allow files to exist both on your own machine and within your Ubuntu VM!