>Thank you very much for your kind reply. Sorry for late response, >since other urgent things these days. > >The hardware installed is Intel Core i7 based desktop, and I tried to use >the debugger at the boot, but the machines has no PS/2 port and the USB >keyboard >can not work at that time, so I have no chance to go further, so I stop to >upgrade my system now.
A system should work just fine with a USB keyboard; perhaps you need to change some BIOS parameters? > >BTW, the machine is running Nevada b95 now, and I tried to use liveupgrade >to upgrade it to b108, it's successful upgrading, but after reboot, it's still >hang at the same place as try to boot with DVD. I'm assuming that there are no error message in the upgrade logs? Casper