[CentOS] install CentOS using an external USB cdrom

> 
> Hello,
> I have an external  USB cdrom ; I have a machine which does 
> not have a VGA card and not  a standard IDE socket so you 
> cannot connect a CDROM internally to it ; it has USB port; I 
> want to install  CentOS using an external  USB cdrom on this 
> machine, through the serial port.
> 
> Is there a way to do it ? I am quite desperate about it.
> 
> The motherboard DOES enable configuing the BIOS to boot from 
> a USB device. Regards, IB 

Try append console=ttyS0,38400,n8
For using serial port 0, and 38400 baud

Gerald