1. i have a 30 GB hard drive which i have partitioned to install Windows XP, Red hat 8.0 and Mandrake 10.1
2. i have successfully installed the combination of windows XP with Red Hat 8.0 with red hat grub boot loader.

3. i installed mandrake after the windows xp and red hat 8.0 combination in the free space corresponding to Mandrake 10.1 and it installed sucessfully.

4. a problem presented itself and it was that during booting process Grub appears and in the list it shows the linux(mandrake 10.1) and Windows it doesn't see linux Red Hat.

5. I went to the web and search to make the Mandrake 10.1 grub see red hat, i found out that you can modify grub menu.lst file and place in there red hat linux

this is my mandrake 10.1's menu.lst right now:

timeout 10
color black/cyan yellow/cyan
default 0

title linux
kernel (hd0,5)/vmlinuz root=/dev/hda8 acpi=ht resume=/dev/hda7splash=silent vga=788
initrd (hd0,5)/initrd.img

title linux-nonfb
kernel (hd0,5)/vmlinuz root=/dev/hda8 acpi=ht resume=/dev/hda7
initrd (hd0, 5)/initrd.img

title 2427-0pre21
kernel (hd0,5)/vmlinuz-2.4.27-0.pre2.lmdk root=/dev/hda8 devfs=nomount acpi=ht resume=/dev/hda7 splash=silent vga=788
initrd (hd0,5)/initrd-2.4.27-0.pre2.lmdk.img

title failsafe
kernel (hd0,5)/vmlinuz root=/dev/hda8 failsafe acpi=ht resume=/dev/hda7

title windows
root (hd0, 0)
chainloader +1



6. The main problem is: that i don't know what to put in the menu.lst in order for grub to see red hat 8.0
i guess if someone can tell me the method which i can use to determine the partition where Red hat's necessary files ( such as initrd.img and vmlinuz) to boot are.

so far i am able to boot mandrake 10.1 and windows xp in the grub bootloader
and i can boot red hat but with a floppy disk

if someone has done this please let me know i have been trying for days

thank you

Boot redhat with a floppy disk and execute "mount" or "df" to see what is mounted where. This information can be supplied to grub to create an entry in grub for Redhat, just like the "linux" one for Mandrake (mandrake actually seems to have 3 entries there)

but where do you want me to execute "mount" or "df" , since when i boot from disk it goes into the graphical operating system. Do you mean type "mount" at the terminal or go with the mouse and search the mnt?

By default, Mandrake creates "linux", "linux-nonfb", and "failsafe" entries.

Edit: Open a terminal window in the GUI, and type the commands there.

i see i escuted "df" in the terminal it gave me informations about the partitions, i sort of knew that, my root / is in /dev/hda3, and my /boot is in /dev/hda2

how can i use this information to feed it into grub in mandrake 10.1 in other words
what are the necessary changes? the menu.lst is above

please be specific

thank u

Hi,
Problem is that Mandrake, by default uses LILO as a boot loader.
Now I am not an expert using GRUB, because i never liked it but
perhaps somebody out there could point you to a way of overwriting
LILO by GRUB, which seems to me to be the correct way even if
I can't tell you exactly how.
Cheers

I am guessing about the name of your redhat boot image, but a line like this (with an appropriate substitution for vmlinuz and for initrd.img) should get you going:


You may need some command line switches for the redhat installation, but I have no idea what those would be.