USB_ERR_IOERR: is usb controller electrically "broken" ?

[ingegneriaforense at alice.it]

Hello everybody,
I'm new of this list. I'm installing the freebsd from CDROM.

During the installation I receive some messages:

>> usbd_req_re_enumerate: addre=3, set address failed (USB_ERR_IOERROR, ignored)
>> usbd_setup_device_desc: getting device descriptor at addr 3 failed, USB_ERR_IOERROR 
>> ugen0.3: <Unknown> at usbus0 (disconnected)
>> uhub_reattach_port: could not allocate new device
 
QUESTIONS:

1. Please, can you tell me what this means ? Maybe is the USB controller electrically "broken" or is due to a no correct software configuration of its parameters ?
These messages are shown during the whole installation process overwriting my terminal and the sysinstall windows also.
Is a way to avoid this behaviour, configuring the freebsd installation ?

2. Is there a way to take a screenshot of boot messages that are shown on the monitor during the installation process ?
Thanks very much in advance.

I apologize with you if my question is not related to the topics of this mailing list.

Vincenzo.

Forensic Consultant
Tribunale di Lecce

Studio: Strada di Garibaldi - Contrada Paradisi
73010 Lequile (LE)

cell: 339.7968555
skype: vincenzo.di_salvo