how to create the live dvd of preinstalled Centos6.6
 

I have installed centos6.6 and many other software also, I want to create the live iso of my installed centos with exesting software, than how I can use this live iso any where with predefine settings and preinstalled software. please suggest how i will do this.
thanks in advance

first WHY!!!! use a unsupported version of cent ????

Cent only supports the current minor version .
Right now that is CentOS 6.8 , 7.2 and the very old legacy 5.11

and why a dvd ?

usb thumb drives are replacing them seeing as they are only 4.7 gig in size

I just only want to create the live iso of preinstalled centos its may be 6.8 or 7

do you have a blue ray burner ?
live iso's are bare bones installs
there is that pesky 4.7 gig issue on a 8 to 20 gig install


fedora has a good guide
https://fedoraproject.org/wiki/Livem..._use_a_Live_CD

mind you fedora is using dnf now ans systenD

Centos6 ( rhel6 ) uses the systemV
centos7 uses systemD