Red Hat Linux7.3 boot option question

[Bill McCormick]

Edward King wrote:

>I installed Red Hat Linux7.3,and then I update kernel,when I reboot again,I found I can select new kernel or old kernel from screen. The default select option is old kernel. I want to know which file i can modify in order to make default select option is new kernel,how to modify it?
>  
>
If using lilo, you would set the default boot kernal in /etc/lilo.conf 
and then run /sbin/lilo.

If using grub then /etc/grub.conf and then check the man pages for grub.

Good luck,

Bill