On UP1100 machine kudzu finds the following:

class: USB
bus: PCI
detached: 0
driver: usb-ohci
desc: "Acer Laboratories Inc. [ALi]|M5237 USB"
vendorId: 10b9
deviceId: 5237
subVendorId: 0000
subDeviceId: 0000
pciType: 1

This is causing

Initializing USB controller (usb-ohci): modprobe: Can't locate module
usb-ohci

during a startup as this module, indeed, does not exist.

'rc.sysinit' should not attempt to insert absent modules.  Even if a
distribution would provide that module then there is nothing which
says that a custom kernel was compiled with it either.  A quick grep
through  /lib/modules/$(uname -r)/modules.dep would solve that problem.

  Michal
  michal