Triple boot:XP,ubuntu&FC5 grub failed

[Jim Cornette]

Tod Merley wrote:

> 
> Hi Gayal Rupasinghe and Jim Cornette!
> 
> Gayle, Jim has it pretty much right I think.
> 
> The chainload of Ubuntu (sort of a "stop looking here and start fresh
> right there!) should see a Fresh MBR (this is were I have a bit of a
> question since I can only see an MBR as being generated for the first
> sector of the disk) immediately followed (and referenced in the MBR)
> by a file within your current /boot/grub called "reiserfs_stage1_5".
> In every Ubuntu installation I have looked at stage 1.5 I have found
> immediately following the MBR (MBR sector 1, Stage 1.5 sector 2).  I
> believe it could be located anywhere as long as you pointed to that
> location within the MBR.
> 
> The grub boot sequence is Stage 1 - the Master Boot Record - which
> points to Stage 1.5 which is sort of a connector enabling the file
> system intended ("reiser" in this case) - Stage 2 - GRUB proper.
> 
> The stage 1.5 I reference above is a bit less than eighteen 512 byte
> sectors long.  I do not know where the partition file tables start.  I
> guess I am saying that if it were me I would look a bit further before
> I did indeed transfer stage 1.5 to "just after the MBR of the Ubuntu
> partition".  I am talking a bit above my knowledge and experience
> (although I am suspicious it would work).
> 
> Good Hunting!
> 
> Tod
> 

Just adding that with the Fedora installer, there is an option for 
advanced bootloader settings during installation of Fedora.
The nice thing about the advanced features is the ability to add new 
information in a graphical interface where you can give a name for the 
alternative OS and select the partition that you want to chainload.

You still need to install the grub into the appropriate area using the 
OS that will be chainloaded. For instance, if Ubuntu has either / or 
/boot on /dev/hdb2, you will need to run grub-install /dev/hdb2 while 
booted into Ubuntu.
Afterwards, Ubuntu should be selectable from the Fedora version of grub, 
which should hand off control to the Ubuntu grub version from there on.

Jim

-- 
The person who's taking you to lunch has no intention of paying.