开机变得超慢，可能是开机加载USB的问题

yeelone

这几天发现开机特别慢，现用系统fedora 13，我用dmesg查看了一下，开机时的时间大多都是花在了这里：

usb 1-6: device descriptor read/64, error -110
usb 1-6: device descriptor read/64, error -110
usb 1-6: new high speed USB device using ehci_hcd and address 5
usb 1-6: device descriptor read/64, error -110
usb 1-6: device descriptor read/64, error -110
usb 1-6: new high speed USB device using ehci_hcd and address 6
usb 1-6: device not accepting address 6, error -110
usb 1-6: new high speed USB device using ehci_hcd and address 7
usb 1-6: device not accepting address 7, error -110


usb 4-2: device descriptor read/64, error -110
usb 4-2: device descriptor read/64, error -110
usb 4-2: new full speed USB device using uhci_hcd and address 3
usb 4-2: device descriptor read/64, error -110
usb 4-2: device descriptor read/64, error -110
usb 4-2: new full speed USB device using uhci_hcd and address 4
usb 4-2: device not accepting address 4, error -110
usb 4-2: new full speed USB device using uhci_hcd and address 5
usb 4-2: device not accepting address 5, error -110

………………
弄得我现在开机特别慢。怎么办呢？？？能不能让系统开机不自动加载这个