On Thu, Mar 5, 2009 at 10:41 PM, mica fang <micafang at gmail.com> wrote: > Jerry Amundson wrote on Thu Mar 5 19:27:34 UTC 2009 >>Otherwise, if you do not need Xen 3.2, just "yum groupinstall >> Virtualization". > > Thanks for your advice,i do "yum groupinstall Virtualization". > Unfortuanately,when reboot,the system also halted at: > ///////////////////////////////////////////////////////////////////////////// > Red Hat nash version 5.1.19.6 > usb 1-5: device not accepting address 4 ,error -110 > usb 1-5: device not accepting address 5, error -110 > usb 1-5: device not accepting address 6,error -110 > usb 1-5: device not accepting address 7,error -110 > //////////////////////////////////////////////////////////////////////////////// Hint: /etc/grub.conf