echo Y into the old_schema_first config.

Start VM, login and wait for it to 'settle'.Add filter for Motorola device (VendorID = 22b8) and set Remote option to 'Any'.Edit VM settings to enable USB Controller AND USB 2.0 (EHCI) Controller.Run 'VboxManage list usbhost' to confirm that the device is being recognized by VBox and listed as 'Available'.Plug in Android device via USB and allow Windows to recognize it.Note that I've already uninstalled VirtualBox, reinstalled the latest version, installed the VirtualBox Guest Additions as well as the latest expansion pack USB device 'motorola XT926' with UUID is busy with a previous request. I've followed numerous guides and forums in order to have my VBox guest recognize my physical Android device via USB, but I keep getting the following error pop-up: Failed to attach the USB device motorola XT926 to the virtual machine Android. I've setup an Ubuntu 12.04 LTS 64-bit VirtualBox guest running on a Windows 7 host (also 64-bit) with the sole purpose of Android-based hacking, programming, debugging, etc.

Ubuntu virtualbox windows 7 64 bit