dual boot xubuntu + windows xp with 2 hard drives

[thesimplecreator]

Ok, i want to dual boot xubuntu 9.04 and windows xp.
i have two hard drives and the first one already has xubuntu installed:
160gb sda (my xubuntu drive)
and
40gb sdb (the drive i want windows xp on)

how would i go about installing xp without destroying my xubuntu installation?

[b2bwild]

Unuplug your 160 GB harddrive or Disable it from bios
then install Windows.

after installation plug in 160 GB hardrive.
set it on primary boot media.

boot into linux.
open
/boot/grub/menu.lst

and add entry.

title Windows
root (hd1,0)
chainloader +1

save file

then reboot select Windows, all done.

[devils casper]

You have to add mapping code too.

title Windows 
rootnoverify (hd1,0)
map (hd0)  (hd1)
map (hd1)  (hd0)
chainloader +1

[thesimplecreator]

So put
title Windows
rootnoverify (hd1,0)
map (hd0) (hd1)
map (hd1) (hd0)
chainload + in /boot/grub/menu.lst?
or the first one?

[devils casper]

Code posted by me will work fine.

* Unplug or disable Linux Harddisk.
* Install Windows OS in other Hard disk.
* Plug-in or enable Linux hard disk. Linux will boot up by default.
* Add code for Windows OS in menu.lst file. You will have an option to boot up Windows OS in GRUB Menu.

[b2bwild]

Well, isnt mapping needed only when disks are on IDE?
I think its needed because Windows cant boot from secondary IDE.

[devils casper]

It doesn't matter if you are using SATA or PATA or any other media. Without mapping code, Windows Boot Loader doesn't work in multi disk setup unless you have set Windows Hard disk as First Boot Device in BIOS.

Mapping is a cheat code. Windows Boot Loader works only if it is installed in Primary Hard disk or Hard disk set as First Boot Device in BIOS.

In two hard disk setup, we set Linux disk as First Boot Device. GRUB chainloads Windows Boot Loader to boot up Windows OS but it doesn't work in this setup. We have to use mapping code to cheat Windows Boot Loader.

[thesimplecreator]

ok, neither worked....
first i put:

title Windows 
rootnoverify (hd1,0)
map (hd0)  (hd1)
map (hd1)  (hd0)
chainload +1

at the end of menu.lst.
and when i booted up i selected windows from the list, but it didnt do anything...
so i booted back into xubuntu and changed the menu.lst to:

title Windows
root (hd1,0)
chainloader +1

and restarted.

this time when i tried to boot windows it went to a screen that said:
"starting up..."
and it stayed there for like 30-45 minutes, so i just botted back into xubuntu.

[Jonathan183]

With Linux drive disabled does Windows boot sucessfully?

With both drives connected and Linux booted ... what does fdisk -l report?

[thesimplecreator]

Windows boots fine and fdisk -l shows

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x000c3512

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1       19177   154039221   83  Linux
/dev/sda2           19178       19457     2249100    5  Extended
/dev/sda5           19178       19457     2249068+  82  Linux swap / Solaris

Disk /dev/sdb: 41.1 GB, 41174138880 bytes
255 heads, 63 sectors/track, 5005 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x103badbb

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   *           1        5005    40202631    c  W95 FAT32 (LBA)