[CentOS] how to install centos on the attached external usb hard disk?

John Doe wrote:
> From: hadi motamedi <motamedi24 at gmail.com>
>>Sorry. You mean I do not need to install grub boot loader when installing
>> on the
>>
>>usb disk? Please comment.
>
> Did you enable usb booting in the bios...?
>
Or tell it to boot from it, rather than hitting the hard drive or CD/DVD
first?

       mark