Kernel RPM install incomplete

[Elmer E. Dow]

Greetings:

I'm a real newbie running RH9 and WinXP Pro on an IBM R40 laptop. A friend at a LUG meeting helped me to download and install updates using YUM. I discovered later that the kernel RPM didn't install completely. Initrd-x.x.xx-xx.x.img is missing from the boot folder and there's no new entry for it in GRUB. (I want to be able to boot both the old and new kernels just in case the new one has a problem.) There might be other problems, too, though I don't know how to discover them. 

Should I do an rpm -e and erase the package, then do an rpm -ivh to reinstall? Would simply doing an rpm -ivh without first erasing the package complete the job? Or should I do a mkinitrd command and then manually edit the new kernel info to GRUB?

Since this is a kernel package, I'm paranoid that I'm going to do something stupid and render this thing inoperable. 

Elmer E. Dow
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