First, make U disk boot boot disk
1, plug in the U disk, open UltraISO software, file-open, select the download good centos-6.5-i386-bin-dvd1.iso file, point start-write hard disk image, select your USB drive in the hard drives, write by default: usb-hdd+, Then click Format, after the formatting is complete, close the dialog box, and then click Write, and then close UltraISO after completion.
2. Open the Syslinux folder under the root directory of the USB stick and replace the original with the VESAMENU.C32 in the attachment. the file.
3. Delete the Packages folder under the root directory of the USB stick (do not delete, if you have enough space on the USB drive).
4. Copy the downloaded system image Centos-6.5-i386-bin-dvd1.iso and Centos-6.5-i386-bin-dvd2.iso to the root of the USB stick (do not change the name, the installation will be automatically recognized).
5, to this point, u disk boot disk production completed.
Note: If you do not replace the Vesamenu.c32 file, it will be stuck on the following screen after booting with the USB stick: Press the <Enter> key to begin the installation process.
Cause: The first line in the Syslinux\syslinux.cfg file below the root of the USB stick is referenced in the Vesamenu.c32 This file, and in the CentOS 6.5 system, this file is a bug, so use the CentOS 6.0 system to replace this file.
Second, the matters needing attention
1, installation attention to boot program installation place, guide to write to the computer disk MBR, not a U disk, pay attention to.
2. Enter the BIOS to modify the drive sequence after the installation is complete.
First BIOS drive: select Local Disk drive
Second BIOS drive: Select USB drive
Note: This step is critical, if installed by default, the system boot boot installation to the USB flash drive, will cause as long as the U disk is unplugged, the system will not start, plug the U disk system can be normal.
This article from "The World Strong Study Blog" blog, declined reprint!
Make Centos6.5 USB boot boot disk and precautions