how to change default os in Grub
 

I installed c drive windows 98 and d drive red hat 9.
i'm using grub for dual boot.
redhat linux setup is the default operating system. How can i change the default os that will be booted??

open /boot/grub/grub.conf and change default to the number of the operating system you want. start counting from zero and count each "title" entry.

how to open /boot/grub/grub.conf ???

to open it, just use some kind of editor, like emacs.

type:
emacs /boot/grub/grub.conf

make the changes in the file, save it, and then try it.

-skiz