OK, you should be able to boot with init=/bin/bash, and then remount, the system read/write by
mount -n -o remount,rw /
After that you can disable usb by
echo alias uhci-hcd off > /etc/modutils/local-disable-uhci reboot
OK, you should be able to boot with init=/bin/bash, and then remount, the system
read/write by
mount -n -o remount,rw /
After that you can disable usb by
echo alias uhci-hcd off > /etc/modutils/ local-disable- uhci
reboot