How to create bootonly file for redhat 5,6

How to create bootonly file for redhat 5,6

here we will create a iso image file which has the only content from where to take the operating system through the network

How to create a boot only file in redhat, here shown below for rhel5, rhel6

first of all copy the isolinux folder from rhel6 dvd

keep the rhel6 dvd into the cd tray

then after

#cd /media/rhel6

#ls

here you can see all the dvd content, here you copy the isolinux folder at some of the location

#cp -rf /media/rhel6/isolinux /home/xyz/Desktop/

here it will copy the isolinux folder on to the desktop

#cd /home/xyz/Desktop

#chmod u+x isolinux/*

here it will give the execution permission for the isolinux folder

#mkisofs -o file.iso -b isolinux.bin -c boot.cat -no-emul-boot \-boot-load-size 4 -boot-info-table -R -J -v -T isolinux/

after this a file with name file.iso is created on the desktop

here the iso which is created is used like as a boot file, it will have the information of booting until from where to take the os

same procedure for the Rhel5

and copy this image into a cd to make as a bootonly cd