Creating Bootable USB Drive:
About Boot Priority
Start the computer and depending on system to enter BIOS menu press ESC, F1, F2, F8 or F10 during the initial startup screen. ...
Choose to enter BIOS setup. ...
Use the arrow keys to select the BOOT tab. ...
To give a CD or DVD drive boot sequence priority over the hard drive, move it to the first position in the list.
I had choose USB HARD DISK as first boot option to boot from, as following screenshot shows
Using rufus:
Rufus is a program that allows you to create a bootable USB drive from an .iso file, following steps shows how to create bootable disk.
Prepare and backup your USB disk:-
Here I have using CentOS iso:
Provide iso filepath & select pen drive:
I have using DD image mode, Rufus is a program that allows you to create a bootable USB drive from an .iso file, dd is a cloning tool. dd always makes a 1:1 copy, writing exactly what it reads. Follow these method
On some system if used iso image mode it will ask for installation source during setup process it will ask Installation source like I got following:
Continue with making USB drive
Ok to warning
Wait for transfer it will take only few minutes.
After successful restart you system and plug in USB drive
On the next post we will see steps of installation of Linux.