I have an ec2 image created with cron jobs. These jobs fail to run; I discovered the cron process in itself has not started. So, I included /usr/sbin/cron in /etc/rc.d/rc.local and created another image. But still for some reason the cron process does not start on bootup. If I restart the machine, the cron process runs. It doesn't run when it boots up! Any reason why this is happening? Also, is there any other alternatives for this ?