English (change)

Here is how to use VirtualBox to install & emulate virtual operating systems to run in Linux. Launch Windows, for example, rather like any other application, with no reboot requirement. Hey, Windows even loads faster than the real thing (not that that's hard.) Or compare alternative operating systems. You can add as many as you like.
Dual or multi booting is all well and good but, for many common tasks, you just need to switch between, say, Karmic and another OS for a few minutes, then go back. What a waste of time restarting your PC, twice, for that.
Cue VirtualBox.
In simple copy/paste steps .. from zero to hero.
Scroll down for the full series index.
Wake up and smell the Ubuntu! Hope it helps. the_guv
Simply put, this is the bees-knees. Some may be tempted to call it the dog's danglies or the billy bollocks (neither of which, by the way, were Ubuntu editions). It gives second-to-none Windows virtualisation, and is open source. Sun of a gun, it's a Sun Microsystem thing. It supports casing most OS'es.
Let me say more ..
Install and run guest OS apps almost seamlessly. With Windows, boot up, shut down and reboot it in a fraction of the time it takes normally to load or unload within a dual boot system or on its own (because a rack of those pointless services don't get cranked up). With VB - and especially the recently launched VB3 - you may well wonder why on earth anyone would bother with dual boot anymore, or apps such as Wine (which in fairness has been darned handy in the past and, actually, I continue to use too).
I use Virtualbox for running non-Linux apps that to date have no equal, like Photoshop and Camtasia, and for testing Linux web and desktop setups. I tested early Karmic Koala Desktop release candidates on it, for example, before porting later builds to a dedicated partition.
Note the Dynamic Kernel Module Support (DKMS) that is installed alongside. That's so that, when we upgrade to a new Ubuntu kernel, VB isn't cocked up by the updated modules.
To install virtualbox, therefore, we do this:-
sudo aptitude install virtualbox-3.0 dkms
The latest version of VirtualBox is 3.0.12. I haven't tried, but you could try using sudo aptitude install virtualbox-3.0.12 dkms rather than sudo aptitude install virtualbox-3.0 dkms. Then again, most likely it's not yet available in Ubuntu's repositories.
Installation is dead simple, just follow the prompts.
Regarding the RAM allocation, it depends how much you've got to spare but, bear in mind, the RAM will only be allotted to the guest while it's running.
Re. Disc space, again, it depends how much you can afford, or need, to give.
For instance, of my Linux host's 4gB RAM, 128 mB video card and 500gB disc space, I allocate 512 mB, 36mB and 30gB respectively to guests.
One config screen will tell you a new user group is being set up, called "vboxusers" and, of course, you need to be a member of that group. No worries ..
When installation has finished, pop open a Terminal and type:-
sudo usermod -G vboxusers -a username
.. where username is your Linux username. So now you are a member of the Virtualbox group.
To start Virtualbox, goto Applications > System Tools > Sun Virtualbox
Once installed, open the app and click on "New", and follow the instructions to install your OS, just as you would normally.
F'rinstance, if it's Windows XP, you can use my Perfect Windows PC Install to ensure security.
If you're reinstalling VB, you needn't bother reinstalling operating systems if you don't want to. Just use the machine states from a previous Virtualbox installation, and save serious time.
Check out this cute-as tip:-
Guest Additions improve the performance of the guest OS, in a bunch of ways. Say, you want full screen? Course you do! Install Guest Additions.
To install them open Virtualbox, then one of the guest operating systems. The virtual OS dialogue appears:-
This is handy, for instance, if you want to create an image in Photoshop (via Virtualbox/Windows), before adding it to your local Linux-based web files.
If your guest Windows system is running:-
If the guest OS isn't running:-
Open Virtualbox > click on Settings > click on Shared Folders .. and follow the above procedure
Now, use your guest as normally you would, were it a primary system, and switch back and forth between the host Linux and however many guest systems.
Set up Koala .. tweak it to perfection .. & maximize productivity .. for work & play.
That's what the Karmic Koala Bible does, stepped out in easy copy/paste guides.
From Linux initiates to intermediates, here's what you need.
HOW-TO Install/Partition Ubuntu 9.10 [KARMIC KOALA BIBLE #4] - GUVNR November 4th, 2009 at 8:59 pm
[...] Add Windows & Other Systems with VirtualBox Here is how to use VirtualBox to install & emulate virtual operating systems to run in Linux. Launch Windows, for example, rather like any other application, with no reboot requirement. Hey, Windows even loads [...] [...]
Boris Matthews November 22nd, 2009 at 4:39 am
Hey, Gov!
Good stuff on your page(s). I have just moved up to Karmic, and want to a documents partition. Since I use Open Office (in Ubuntu and in Windows), I think I should be able to read Open Office files from either OS if they are on the common documents partition. Right? (Or am I out to lunch?)
Also wanted to thank you for your piece on VBox. I have used VBox previously with XP and Jaunty. Haven't gotten that far yet with Karmic and W 7 because I upgraded the CPU and HDD.
Anyway, thanks for your good info. Keep up the good work.
Boris
the_guv November 24th, 2009 at 12:38 pm
@Boris .. yes, you can do that. Open Windows in VB and then click on Devices > Shared Folders, and store your docs in there. But. Have to say, you'll be wanting a fairly beefy PC to access your Shared Folder quickly.
Big cheers m8.
HOW-TO Install & Perfect Ubuntu 9.10 [KARMIC KOALA BIBLE #1] - GUVNR November 30th, 2009 at 9:09 pm
[...] Emulate Virtual OSes with VirtualBox HOW-TO install & emulate virtual operating systems, Windows for example, to run just like any other application in Linux, with no need to reboot. [...]
Ken December 6th, 2009 at 4:41 am
Awesome stuff! Wish I'd read it before making my secondary HDD disappear messing about with gparted
Easily one of the best guides I've come across and amusing to boot.
Cheers mate, have a pint on me
the_guv December 7th, 2009 at 9:34 am
@Ken .. big cheers, appreciated, will drink it wisely, so that's after breakfast.