Compaq Presario M2000 series 1.6GHz Turion64 Don't be fooled. It may look like Windows(TM). This laptop won't boot unless all serials has been disabled. Disable it permanently either by removing sio option from the kernel config, explicit disable through device.hints (as below) or using "set" command during early boot process (which is likely for first time installation). /boot/device.hints: hint.sio.0.disabled="1" hint.sio.1.disabled="1" hint.ppc.0.disabled="1"