Virtualbox usb drive problem

Posted on 2010-11-26
Medium Priority
Last Modified: 2012-05-10
Running VirtualBox 3.2.10 r66223 on a Dell Optiplex 980

The Host o/s is Windows 7 Pro

The guest o/s is Windows 2000 Pro

The problem:  No USB drives are recognized by the guest o/s.  The host can see the usb drive.  In the guest o/s device  manager there is a yellow questionmark by the universal serial bus.   I have installed all the guest add on’s already.  

What must I do to enable the guest o/s to see the usb drive?

I have been to forums.virtualbox.org but no one answers my question there.
Question by:donpick
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Expert Comment

ID: 34220753
I haven't use VirtualBox for quite some time.  But i think there are two approach on this.
1. you don't plug in USB until guest OS already loaded.  And have the guest OS grab the USB device instead of host OS.
2. if USB is required upon guest OS boot or method 1 doesn't work.  you have to manually create the vmdk file that link to the usb device(not partition).  This can be done by using VBoxManage command in the dos box.  Check out this link for more detail.

Author Comment

ID: 34222832
Hello someone0:

The link does not work.   What other link might you know of?

Expert Comment

ID: 34223559
The link works, but it seem the server is very slow or busy.  You can try google "boot-your-usb-drive-in-virtualbox" w/o quote, and hit the cache.
Here is another one, it basically the same method.

Author Comment

ID: 34223801

Thank you for the new link.  It works.  
I have a functioning instance of VirtualBox.  it is running on Windows 7 pc (dell Optiplex 980 64 bit).  The guest o/s is Windows 2000 pro.  There is a usb drive connected to the Optiplex and Windows 7 can see and use it.

The problem:   The guest o/s cannot connect to the usb drive.  What do I modify (if anything)  in the post you sent to me to enable the guest o/s to see the usb drive?

Accepted Solution

someone0 earned 2000 total points
ID: 34224141
If you follow the step in the link, which will create the vmdk file which normally vmdk would be a virtual disk.  But in this case, the vmdk file will be a path for the USB thumb drive.  After you have created the vmdk file, you basically go back to your guest OS and tell it to add another virtual harddisk.  When it ask whether you want to create another disk, you instead say you want to add existing virtual disk, and you select the vmdk which you just created.  After guest OS started, you should see the USB drive as another drive in the guest OS.

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