There are many ways to create a live USB drive carrying an operating system like Ubuntu, but the method I will describe further is mainly based on using SUN’s VirtualBox.
While the method described on the Ubuntu documentations implies installing a Live CD image on a USB flash drive, which would then need to extract and load the operating system in the RAM, the method described on this page implies installing a fresh operating system on a bootable flash drive that will work the same way as from a real HDD (except the speed, of course). Thus, you should have a good bootable USB 2.0, with decent I/O data processing speeds, with at least 4GB (considering that the operating system itself weighs ~2GB, Karmic Koala).
Click on Settings for your virtual machine, go to USB tab. Check the two boxes, since you do want USB 2.0 support. In theory, this is all, but there’s one step we will need to do afterwards to get this really working. True for Windows, Linux needs a bit more sweat.
You also need to set USB filters so that the USB devices get sent to the guest OS. USB filter is a nice feature that allows you to automatically connect USB devices to your virtual machine. Any device listed in the filter box will be plugged in when you power the guest operating system. Other devices will require that you manually connect them.
From the main Virtualbox window open the Settings dialog, then the USB section, then click the little “add filter” button on the right side of the screen. You should be able to create a filter from any currently connected USB devices.
Much like VMware Tools for VMware products, the Guest Additions expose additional functionality in the virtual machine, boost performance, enhance sharing, and more. We’ve had a long tutorial, which explains how to achieve this in both Windows and Linux virtual machines. You will need to add your user to the VirtualBox group to be able to share USB resources. You can do this from the command line or try the GUI menus.
All right, so we’re running Ubuntu with Gnome desktop. Therefore, go to System > Administration > Users and Groups. In the menu that opens, click on Manage Groups. Scroll and look for the vboxusers group. Click on the Properties button. Make sure your user is listed and checked in the Group Members field. You will need to logout and login back into the session for the effects to take change. Now, power on the virtual machine once more and see what happens.
I had the same problem and fixed it by clicking in the VirtualBox group of my user. You can access it installing gnome-system-tools (it does not come with Ubuntu 12.04 Precise Pangolin), either via the Ubuntu Software Center, Synaptic or by typing in the terminal:
sudo apt-get install gnome-system-tools
Then you head to your Dash home and type users. You will see two applications. The good one is Users and Groups.
You then have to click on Advanced settings for your user and enter your password.
Now you will be shown a window with three tabs. Click on User Privileges. Find the line that says Use Virtualbox virtualization solution and then OK.
After you’ve done this (maybe restart to be sure the host OS isn’t capturing any of the USB devices for itself–Ubuntu will try to automount the flash drive so you might also want to check and make sure that it is unmounted too) then boot into the guest OS and you should see your USB devices.
Edit: note on USB filters
It’s my understanding that a device being used by a guest OS with a USB filter will not be accessible by the host OS while the guest OS is running. Therefore, one should choose carefully what usb devices to create filters for.
You should create USB filters for things that you plan on only using with the guest OS (often peripherals that don’t work with the host OS and will only work with the guest OS) and when you won’t require being able to access the device from the host OS while the guest OS is running. For example I have a USB banking dongle from my bank, ICBC, that is not compatible with Linux so I use a virtualized installation of Windows XP for banking and use a USB filter to grab the USB dongle.
Examples of good devices to create filters for:
- USB banking dongles that only work with guest OS
- e-readers (Kindle,Nook,etc.) that you plan on using only (or primarily) with the guest OS.
- external soundcards that only work with the guest OS or require the guest OS for full functionality
Examples of bad devices to create filters for:
- USB input devices (mouses or keyboards) that you would like to use with the host and guest OSes. Virtualbox will allow the guest OS access to these devices by default so there is no need for the guest OS to directly control them (well, I could think of some specialized reasons but I will digress…).
- USB storage devices that you want the guest and the host OSes to both be able to access at the same time. Instead, mount the drive on the host OS and use shared folders to share the drive to the guest OS.
You will probably have to enter your password to allow the installation and add a Y (as in yes) to finish installing the packages.
Press alt-f2 and type ccsm (do you have compiz settings manager installed?) Scroll to the bottom and find the “move windows” icon and click on it. There is an option “constrain Y”; uncheck this and you can pull the windows where you want. If you are useing “advanced desktop settings” and dont have compiz-config-settings installed open a terminal and digit;
sudo apt-get install compizconfig-settings-manager
For a whole library full of tutorials, guides, howtos, tips and tricks on virtualization, feel free to click on any of the links below, preferably all.