USB device grayed out.

[vsrahul]

I have recently installed VirtualBox v4.12.12. Guest OS - Ubuntu 13.04, Host OS - Mac OS X v10.7.3.
I am unable to access my USB drive. It is unavailable (or) grayed out. I have enabled the USB 2.0 controller.
I have tried using filters but it did not work. I even tried plugging in the USB flash drive when the VM was turned on, but even this didn't help! I am totally new to this vbox software. I feel it's a permission problem. But I don't know how to set the permissions. I have searched for it but I couldn't find any. Thanks a lot for trying to solve this issue.
The USB flash drive I have used - 16 gb SanDisk Cruzer Fit.

[mpack]

Make sure you install the extension pack (not the same as the guest additions). USB 2.0 is not available until that is done.

[ChipMcK]

I have enabled the USB 2.0 controller.

In the filter, the following fields need to be empty/blank

• Revision:
  Manufacturer:
  Product:

[mpack]

In the filter, the following fields need to be empty/blank

• Revision:
  Manufacturer:
  Product:

I don't know why you say that. Most of my USB filters have those fields filled in.

[Perryg]

In the filter, the following fields need to be empty/blank

• Revision:
  Manufacturer:
  Product:

I don't know why you say that. Most of my USB filters have those fields filled in.

Yes but most Mac users find this a necessary option with USB.
Much like you can not have more than one processor enabled when using USB. If you have set the guest to use two processors or if those fields are filled in the likelihood or success is not good.

[vsrahul]

I have installed the extension pack also. I have not installed any guest additions.
Thanks a lot for your reply!

[vsrahul]

I have enabled the USB 2.0 controller.

In the filter, the following fields need to be empty/blank

• Revision:
  Manufacturer:
  Product:

I have tried this, but it's still not working.

[Perryg]

From a host terminal post the results of the following:

• VBoxManage list extpacks
• VBoxManage list usbhost
• VBoxManage list usbfilters

[vsrahul]

From a host terminal post the results of the following:

• VBoxManage list extpacks
• VBoxManage list usbhost
• VBoxManage list usbfilters

1st command result -
Extension Packs: 1
Pack no. 0: Oracle VM VirtualBox Extension Pack
Version: 4.2.12
Revision: 84980
Edition:
Description: USB 2.0 Host Controller, VirtualBox RDP, PXE ROM with E1000 support.
VRDE Module: VBoxVRDP
Usable: true
Why unusable:

2nd command result -
Host USB Devices:

UUID: aa33387a-6cc3-4b0c-9947-a25966af1cda
VendorId: 0x054c (054C)
ProductId: 0x04be (04BE)
Revision: 0.1 (0001)
Port: 2
USB version/speed: 0/2
Manufacturer: SONY
Product: WALKMAN
SerialNumber: 0E49CB36492604
Address: p=0x04be;v=0x054c;s=0x000000017ec96e99;l=0xfa120000
Current State: Unavailable

UUID: 4e91d39e-840e-408a-9634-3da2f91d9b37
VendorId: 0x05ac (05AC)
ProductId: 0x8215 (8215)
Revision: 1.150 (01150)
Port: 1
USB version/speed: 0/1
Manufacturer: Apple Inc.
Product: Bluetooth USB Host Controller
SerialNumber: B8F6B138FB6C
Address: p=0x8215;v=0x05ac;s=0x0000000049e0979f;l=0xfa111000
Current State: Busy

UUID: 995420ea-28e2-40cd-8ee1-ad5cac4121ba
VendorId: 0x05ac (05AC)
ProductId: 0x8242 (8242)
Revision: 0.22 (0022)
Port: 2
USB version/speed: 0/1
Manufacturer: Apple Computer, Inc.
Product: IR Receiver
Address: p=0x8242;v=0x05ac;s=0x000000003b274ab5;l=0xfd120000
Current State: Busy

UUID: 638cce2b-938e-45a0-b5cc-f08d4abed8d1
VendorId: 0x05ac (05AC)
ProductId: 0x8403 (8403)
Revision: 152.51 (15251)
Port: 1
USB version/speed: 0/2
Manufacturer: Apple
Product: Internal Memory Card Reader
SerialNumber: 000000009833
Address: p=0x8403;v=0x05ac;s=0x00000000319e4df7;l=0xfd110000
Current State: Busy

UUID: a852ad1b-e6e5-4d63-b7bb-046539aa08af
VendorId: 0x05ac (05AC)
ProductId: 0x850b (850B)
Revision: 7.85 (0785)
Port: 2
USB version/speed: 0/2
Manufacturer: Apple Inc.
Product: FaceTime HD Camera (Built-in)
SerialNumber: CCGC4P02CQDDJPFX
Address: p=0x850b;v=0x05ac;s=0x000000002e0ce6dd;l=0xfa200000
Current State: Busy

UUID: a6a41160-dea4-4720-a851-9d2a77922e53
VendorId: 0x0781 (0781)
ProductId: 0x5571 (5571)
Revision: 1.38 (0138)
Port: 4
USB version/speed: 0/2
Manufacturer: SanDisk
Product: Firebird USB Flash Drive
SerialNumber: 4C532000060223116234
Address: p=0x5571;v=0x0781;s=0x0000000044895c9b;l=0xfd140000
Current State: Unavailable

UUID: e9536263-3520-4ed3-8434-34898266ea6c
VendorId: 0x12d1 (12D1)
ProductId: 0x1436 (1436)
Revision: 0.0 (0000)
Port: 3
USB version/speed: 0/2
Manufacturer: HUAWEI Technology
Product: HUAWEI Mobile
Address: p=0x1436;v=0x12d1;s=0x00000000404de5b5;l=0xfa130000
Current State: Unavailable

3rd command output -
Global USB Device Filters:

<none>

----------------end-------------------
I have tried using usb filter. It didn't work.
Can you please tell me how to change permissions on a file in the /dev folder to access this usb drive? I have read about it, but I couldn't find how to do this.

[Jimbo72]

In the filter, the following fields need to be empty/blank

• Revision:
  Manufacturer:
  Product:

That solved the problem that I was having with my Apple Internal Memory (SD) Card Reader.