Hi all,
I'm having a difficulty on installing oracle linux 6 in my laptop.
I downloaded two iso files and burned to two usb respectively.

I inserted two usb to my laptop, and managed booting priority, and linux installation program was run.
Everything is fine until now.
But when I go to next step from managing device partitions, a message showed up.

It says, "The installer has tried to mount image # 1, but cannot find it on the hard drive. Please copy this image to the drive and click Retry. Click Exit to abort the installation."
Please tell me what is wrong.
Thank you.