Yet another GRUB error 17

[monteith]

I am attempting to triple boot Ubuntu, Windows 7, and Backtrack 4. Win7 and Ubuntu are both booting and working properly, but after trying a number of configurations for GRUB I cannot boot Backtrack. Everything I attempt seems to come back to one problem and result in the same error: Error 17.

sda contains both my Windows and Ubuntu partitions...

Disk /dev/sda: 250.0 GB, 250059350016 bytes
255 heads, 63 sectors/track, 30401 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x07dccf10

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1               1       12748   102398278+  83  Linux
/dev/sda2   *       12749       29272   132729030    7  HPFS/NTFS
/dev/sda3           29273       30401     9068692+   5  Extended
/dev/sda5           29273       30401     9068661   82  Linux swap / Solaris

...while sdd contains the Backtrack partition.

Disk /dev/sdd: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x97acc7fc

   Device Boot      Start         End      Blocks   Id  System
/dev/sdd1               1        9327    74919096   83  Linux
/dev/sdd2            9328        9729     3229065    5  Extended
/dev/sdd5            9328        9729     3229033+  82  Linux swap / Solaris

Can anybody point me in the right direction to getting sdd mounted? Is it even possible to boot from a separate hard disk the way I am attempting to? I know chainloading is a method typically used for unsupported operating systems, but is this a situation where it should be used?

[monteith]

Also...here's my menu.lst:

title		Ubuntu 9.04, kernel 2.6.28-14-generic
uuid		fb2b1d3c-7e50-4cb0-b002-08e8be1181a9
kernel		/boot/vmlinuz-2.6.28-14-generic root=UUID=fb2b1d3c-7e50-4cb0-b002-08e8be1181a9 ro quiet splash 
initrd		/boot/initrd.img-2.6.28-14-generic
quiet

title		Ubuntu 9.04, kernel 2.6.28-14-generic (recovery mode)
uuid		fb2b1d3c-7e50-4cb0-b002-08e8be1181a9
kernel		/boot/vmlinuz-2.6.28-14-generic root=UUID=fb2b1d3c-7e50-4cb0-b002-08e8be1181a9 ro  single
initrd		/boot/initrd.img-2.6.28-14-generic

title		Ubuntu 9.04, memtest86+
uuid		fb2b1d3c-7e50-4cb0-b002-08e8be1181a9
kernel		/boot/memtest86+.bin
quiet

### END DEBIAN AUTOMAGIC KERNELS LIST

# This is a divider, added to separate the menu items below from the Debian
# ones.
title		Other operating systems:
root

title Windows Seven
root (hd0,1)
makeactive
chainloader +1

title BackTrack4
rootnoverify (hd3,0)
kernel /boot/vmlinuz-2.6.2.9.4
initrd /boot/initrd.img-2.6.29.4
boot

[monteith]

sorry...the rest of my menu.lst

# menu.lst - See: grub(8), info grub, update-grub(8)
#            grub-install(8), grub-floppy(8),
#            grub-md5-crypt, /usr/share/doc/grub
#            and /usr/share/doc/grub-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default		0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout		10

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
#hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line)  and entries protected by the
# command 'lock'
# e.g. password topsecret
#      password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title		Windows 95/98/NT/2000
# root		(hd0,0)
# makeactive
# chainloader	+1
#
# title		Linux
# root		(hd0,1)
# kernel	/vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
##      kopt_2_6_8=root=/dev/hdc1 ro
##      kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=fb2b1d3c-7e50-4cb0-b002-08e8be1181a9 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=fb2b1d3c-7e50-4cb0-b002-08e8be1181a9

## should update-grub create alternative automagic boot options
## e.g. alternative=true
##      alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
##      lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
##      lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##      altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
##      howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
##      indomU=true
##      indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
##      memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

[saikee]

Try Booting back track with these instructions

title BackTrack4
rootnoverify (hd3,0)
kernel /boot/vmlinuz-2.6.2.9.4 ro root=/dev/sdd1
initrd /boot/initrd.img-2.6.29.4
boo

Backtrack is a member of the Slax family which uses Lilo. You can therefore also try using Grub to chainload Lilo. This means to restore Lilo first in its root partition sdd1. Task D3 and E2 in my last link refer. In your case you don't need a Live CD as Ubuntu can be used for that purpose. Remember change the reference /dev/hda8 to /dev/sdd1 to suit your Backtrack. In E2 you need to add a title line also. The one in your existing menu.lst will do.