How to install RHEL 6.5 via a USB pendrive?

For some reason, I was unable to boot the DVD properly on my new computer. This might be due to a problem with the optical drive or the DVD disk. So, here is another try and it works for me.

1. download rhel-server-6.5-i386-dvd.iso to my old RHEL;
2. insert a 4GB usb pendrive;
3. find out the device name, e.g. sdb, with dmesg;
4. dd if=./rhel-server-6.5-i386-dvd.iso of=/dev/sdb
5. burn the iso onto a physical DVD disk

Then,

1. insert the usb pendrive and the DVD disk into the new computer, and reboot it.
2. press F10 to get into BIOS, and move the USB booting order to top;
3. continue the booting, it works well.