USB hub that allows bootcamp to start

USB Hubs do not work. Is there a specific reason to use them? If you want to, connect the BC Assistant-created USB installer with and without an external Hub and check the System Report -> USB and you can see that you end up with cascading hubs, because the Mac's internal USB is already a hub. Even using the USB hub built into the Apple Keyboard does not work properly.

It will work after bootup, just not during when devices are connected to the hub. One of my business clients wanted to have multiple USB devices plugged in at all times which is the reason I ran into this problem.

As long as the external USB hubs can be disconnected for the duration of BC/Windows installation then they can be used.

Unfortunately that doesn't seem to be the case during bootup.

Do the hubs not function even after the full Windows Installation?

Yes that is correct. I have the same issue as the original poster. The hub, with devices plugged in, will prevent the boot camp partition from starting with a fully installed version of windows. The hubs can be plugged in and work normally after bootup. I have tested with Anker and Amazon branded USB 2 & USB 3 hubs on 2011 & 2012 macbook pros. These same hubs don't have any affect on Windows 7 bootup on non-apple computers.

I have given up on trying to fix the issue since it seems like it is a simulated BIOS issue that i will not be able to work around. I have told my client so much.

Are these powered by the USB port or do they have independent power connections?

Both 4 port self powered and 7 port powered models. I have one more on order but I'm doubtful.

Plug the USB drive into one of the Macs USB sockets.

@csound1

I appreciate the thought but read the post before posting a generic reply.... Seriously.

Once you get the test hubs, can you connect one of them, and test if OSX booting works. If it works, can you look at System Report -> USB and post the output? If you can post a text version, using the example, even better. Current draw from powered hubs can also be a problem area.

system_profiler SPUSBDataType

USB:

USB 3.0 SuperSpeed Bus:

Host Controller Location: Built-in USB

Host Controller Driver: AppleUSBXHCI

PCI Device ID: 0x8c31

PCI Revision ID: 0x0005

PCI Vendor ID: 0x8086

Bus Number: 0x0a

Internal Memory Card Reader:

Product ID: 0x8406

Vendor ID: 0x05ac (Apple Inc.)

Version: 8.20

Serial Number: 000000000820

Speed: Up to 5 Gb/sec

Manufacturer: Apple

Location ID: 0x15400000 / 1

Current Available (mA): 900

Current Required (mA): 224

USB 3.0 Hi-Speed Bus:

Host Controller Location: Built-in USB

Host Controller Driver: AppleUSBXHCI

PCI Device ID: 0x8c31

PCI Revision ID: 0x0005

PCI Vendor ID: 0x8086

Bus Number: 0x0a

Apple Internal Keyboard / Trackpad:

Product ID: 0x0262

Vendor ID: 0x05ac (Apple Inc.)

Version: 2.25

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0x14c00000 / 3

Current Available (mA): 500

Current Required (mA): 40

BRCM20702 Hub:

Product ID: 0x4500

Vendor ID: 0x0a5c (Broadcom Corp.)

Version: 1.00

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0x14800000 / 2

Current Available (mA): 500

Current Required (mA): 94

Bluetooth USB Host Controller:

Product ID: 0x8289

Vendor ID: 0x05ac (Apple Inc.)

Version: 1.06

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0x14830000 / 4

Current Available (mA): 500

Current Required (mA): 0

USB Hi-Speed Bus:

Host Controller Location: Thunderbolt

Host Controller Driver: AppleUSBEHCI

PCI Device ID: 0x400f

PCI Revision ID: 0x0003

PCI Vendor ID: 0x12d8

Bus Number: 0xa0

Hub:

Product ID: 0x9127

Vendor ID: 0x05ac (Apple Inc.)

Version: 1.00

Speed: Up to 480 Mb/sec

Location ID: 0xa0100000 / 2

Current Available (mA): 500

Current Required (mA): 100

Apple Thunderbolt Display:

Product ID: 0x9227

Vendor ID: 0x05ac (Apple Inc.)

Version: 1.39

Serial Number: 1814212B

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xa0170000 / 5

Current Available (mA): 500

Current Required (mA): 2

FaceTime HD Camera (Display):

Product ID: 0x1112

Vendor ID: 0x05ac (Apple Inc.)

Version: 71.60

Serial Number:

Speed: Up to 480 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xa0150000 / 4

Current Available (mA): 500

Current Required (mA): 500

Display Audio:

Product ID: 0x1107

Vendor ID: 0x05ac (Apple Inc.)

Version: 2.09

Serial Number: 1814212B

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xa0140000 / 3

Current Available (mA): 500

Current Required (mA): 2

USB Hi-Speed Bus:

Host Controller Location: Thunderbolt

Host Controller Driver: AppleUSBEHCI

PCI Device ID: 0x400f

PCI Revision ID: 0x0003

PCI Vendor ID: 0x12d8

Bus Number: 0xe0

Hub:

Product ID: 0x9127

Vendor ID: 0x05ac (Apple Inc.)

Version: 1.00

Speed: Up to 480 Mb/sec

Location ID: 0xe0100000 / 2

Current Available (mA): 500

Current Required (mA): 100

FaceTime HD Camera (Display):

Product ID: 0x1112

Vendor ID: 0x05ac (Apple Inc.)

Version: 71.60

Serial Number:

Speed: Up to 480 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xe0150000 / 5

Current Available (mA): 500

Current Required (mA): 500

Apple Thunderbolt Display:

Product ID: 0x9227

Vendor ID: 0x05ac (Apple Inc.)

Version: 1.39

Serial Number: 181420D0

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xe0170000 / 4

Current Available (mA): 500

Current Required (mA): 2

Display Audio:

Product ID: 0x1107

Vendor ID: 0x05ac (Apple Inc.)

Version: 2.09

Serial Number: 181420D0

Speed: Up to 12 Mb/sec

Manufacturer: Apple Inc.

Location ID: 0xe0140000 / 3

Current Available (mA): 500

Current Required (mA): 2

So don't, use hubs that don't work if you prefer. Good luck

Hi Loner

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