Connecting external hard drive to Lubuntu guest

[rafafan2010]

I have a Windows 7 64-bit host and a Lubuntu 13.04 guest, and I'm using VirtualBox 4.2.16. This is what I'm trying to do:

I'm trying to get some files off of my virtual machine by connecting my Seagate BackupPlus external hard drive to it. I've gone into the settings of my virtual machine, enabled the USB Controller and the USB 2.0 (EHCI) Controller, and added a filter for my hard drive. When I boot up my virtual machine and select my hard drive from the Devices menu, I get this error:

"Failed to atttach the USB device Unknown device 0BC2:A013 [0100] to the virtual machine lubuntu1.

USB device '' with UUID {ca0c17b1-a471-4dbe-90e7-621662873d1f} is busy with a previous request. Please try again later."

How do I fix this error?

[mpack]

On the USB problem, I have retired from answering that question so I can only suggest a google search "busy with a previous request" site:forums.virtualbox.org.

Or, if the guest has the GAs installed then simply create a shared folder on the external drive. This is usually much more reliable as a solution.