How do fix disk repair Mac disk utility without installation CD?

An installation cd/dvd is essential in order to repair the start-up disk. The Mac needs a booting platform & this cd/dvd provides exactly the same. One cannot repair the boot partition while initiating the system from it. Thankfully, there are couple of disk repair software such as Stellar Volume Repair and Disk Warrior that provides bootable disk if your installation cd is missing. You can boot from the DVD created by the software and then perform repairment with the help of these partition repair tools.