Related to: How to add a new SATA disk to a running VirtualBox guest?
The only thing you can do is attach USB Storage to the host, and it
will become visible in the guest too
Question: How can I add a virtual USB storage to a running VirtualBox guest? I don't want to use a physical flashdrive, just do it "virtually" and online!
By virtual I mean to "emulate" a USB flash drive, so I could at the end, online add a new storage for a running guest.
Best Answer
Impossible.
VirtualBox does not virtualize USB mass storage devices.
If you want to add mass storage to your virtual machine, the only way to power it down and add a virtual hard disk.