Funny.  I just happened to bookmark a grub mini-howto that describes just this
situation:

Linux
Win98
Win2k

http://www.linuxdoc.org/HOWTO/mini/Multiboot-with-GRUB.html

> Hi Group,
> 
>   I need a little help with my boot loader.
> 
>   History: I installed RH Linux 7.0 some time ago with Lilo as my boot
> loader. I had no problem loading either win2k or Linux, each on their
> own HD. I just selected Linux or DOS and away I went.
> 
>                   Then I upgraded to RH 7.1 and after that 7.2. This ia
> where my problem started. I choose Grub as my loader and I managed to
> totally mess up my MBR. After some thinking I did a fdisk /mbr and was
> able to reinstall win2k and get my mbr back, but only for win2k.
> 
>                    Now I load linux with a boot floppy, works fine,
> however, I used RHN up2date to upgrade my kernel from 2.4.7-10 to
> 2.4.9-31, all went OK according to the messages. I rebooted, ran uname
> -a and , low and behold my version # is still 2.4.7-10.
> 
>                    Looking at my numerous boot configuration files I see
> that the new kernel is included, but does not boot.
> 
>                    My question is this: How do get my new kernel to
> boot, and all my O/S's to load from the HD, I have win98. win2k and RH
> 7.2. I also need to know how I find out what .conf file my system uses
> to load, I am still booting linux from a floppy, and which .conf files
> can I get rif of, if any.
> 
>                     Any help is greatly appreciated.
> 
>                     Thanks
> 
>                      FrankM
> 
> ==================================================
> 
> ## This is my grub.conf
> # grub.conf generated by anaconda
> #
> # Note that you do not have to rerun grub after making changes to this
> file
> # NOTICE:  You do not have a /boot partition.  This means that
> #          all kernel and initrd paths are relative to /, eg.
> #          root (hd1,0)
> #          kernel /boot/vmlinuz-version ro root=/dev/hdb1
> #          initrd /boot/initrd-version.img
> #boot=/dev/hdb1
> default=2
> timeout=10
> splashimage=(hd1,0)/boot/grub/splash.xpm.gz
> title Red Hat Linux (2.4.9-31)
>  root (hd1,0)
>  kernel /boot/vmlinuz-2.4.9-31 ro root=/dev/hdb1
>  initrd /boot/initrd-2.4.9-31.img
> title Red Hat Linux (2.4.7-10)
>  root (hd1,0)
>  kernel /boot/vmlinuz-2.4.7-10 ro root=/dev/hdb1
>  initrd /boot/initrd-2.4.7-10.img
> title DOS
>  rootnoverify (hd0,0)
>  chainloader +1
> 
> ==========================================================
> 
> ##This is my lilo.conf.up2date-1017508141.67 file
> prompt
> timeout=50
> default=DOS
> boot=/dev/hdb1
> map=/boot/map
> install=/boot/boot.b
> message=/boot/message
> linear
> 
> image=/boot/vmlinuz-2.4.7-10
>  label=linux
>  initrd=/boot/initrd-2.4.7-10.img
>  read-only
>  root=/dev/hdb1
> 
> other=/dev/hda1
>  optional
>  label=DOS
> 
> ===========================================================
> 
> ## This is my lilo.conf file
> prompt
> timeout=50
> default=DOS
> boot=/dev/hdb1
> map=/boot/map
> install=/boot/boot.b
> message=/boot/message
> linear
> 
> image=/boot/vmlinuz-2.4.7-10
>  label=linux.bak
>  initrd=/boot/initrd-2.4.7-10.img
>  read-only
>  root=/dev/hdb1
> 
> other=/dev/hda1
>  optional
>  label=DOS
> 
> image=/boot/vmlinuz-2.4.9-31
>  label=linux
>  root=/dev/hdb1
>  read-only
>  initrd=/boot/initrd-2.4.9-31.img
> 
> =============================================================
> 
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