Quote Originally Posted by serene
4. I tried again to start Knoppix 3.9 and disabling the USB ( knoppix nousb ).
Result: Success... but no USB at all.

I can now start up knoppix but I have NO usb support.
Glad to hear that you can now use Knoppix, even if it is without USB support.
Quote Originally Posted by serene
How would I acomplish troubleshooting the USB?
I suspect that your USB hardware and the current USB drivers may not play well together. You can tell what USB hardware you have with 'lspci | grep -i usb':
Code:
root@tty1[/]# lspci | grep -i usb
0000:00:09.0 USB Controller: Unknown device 2955:6e61 (rev 11)
00:09.0 is the bus:slot.func number and 2955:6e61 is the vendor:device number (unknown in this case) that lspci looks up in /usr/share/misc/pci.ids. View the top of that file for a description for how it is laid out. You can then get more information from lspci by specifying the bus:slot.function number and being very verbose:
Code:
root@tty1[/]# lspci -vv -s 00:09.0
0000:00:09.0 USB Controller: Unknown device 2955:6e61 (rev 11) (prog-if 10 [OHCI])
        Subsystem: Unknown device 2955:6e61
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B- ParErr+ DEVSEL=?? >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin B routed to IRQ 9
        Region 0: Memory at 10000000 (32-bit, prefetchable) [size=4K]
Can you post your lspci output?
Quote Originally Posted by serene
Thank you much.
Serene
You're welcome and let us know how things go.

Regards,
- Robert
http://www.cwelug.org/