Hi,
I'm a newbie. Just now i've loaded my mandriva2007. further I loaded RHEL4ES in the same hard disk. but I could not boot RHEL4 and could boot mandriva2007 after repairing the GRUB. Now gurus pls help me to how to load mandriva 2007 and RHEL4. present config is 80gb sata. partition details is one primary for windows.logical partition with reiserfs in which mandriva2007 is loaded and one swap in primary partition. one boot and / reserved for RHEL4. Thanx in anticipation.

do you have a live cd such as knoppix to report your partition table?

I am guessing its this

hd0,0 = /dev/sda1 = Ms
hd0,1 = extended
hd0,2 = logical = /dev/sda5 = mandriva
hd0,3 =logical = /dev/sda6 = /boot for rh
hd0,4 = logical = /dev/sda6 = / for rh

2) read my tutorial on how to convert to grubspeak

3) if grub is already in mbr you can read my troubleshooter and use commands to boot into mandriva and then using root powers edit the /boot/grub/menu.lst file to something like this
ONLY if it truly boots for you

title ms
root (hd0,0)
makeactive
chainloader +1


title mandriva
root (hd0,2)
kernel /boot/vmlinuz root=/dev/sda5
initrd /boot/initrd.img

title rh
root (hd0,3)
kernel /vmlinuz root=/dev/sda6
initrd /initrd.img