Dual Boot SATA and PATA?

[The Wassermans]

On Wed, 2009-11-04 at 07:51 +1000, Paul Gear wrote:
> The Wassermans wrote:
> > I currently have Ubuntu 8.04 loaded on a SATA and dual boots with
> > Windows XP.
> >
> > Because I needed a clean install of XP, I decided to take the
> > opportunity to install XP on a spare PATA drive, Fully expecting to be
> > able to simply redirect the dual boot instruction to fire up XP on the
> > PATA drive in the same way as it did previously.
> >
> > At present I can only access the XP when I want to by changing the Boot
> > priority in the BIOS each time. It works but I don't like it.
> >
> > I need some guidance please.
> 

> Hi Dave,

Hello Paul,

Thank you for your response and guidance.  I have not been checking my
mail as I should and missed your post.
> 
> You definitely should be able to do what you're after.  What order is
> your BIOS set to boot in?  SATA first?

I have been changing the order manually during boot-up, depending on
whether I want Ubuntu or Windows. But I would prefer to have it run
selectively from the Sata disk.
> 
> If it's booting from SATA first, then your SATA drive should be (hd0) as
> far as grub is concerned, and (hd1) should be PATA, although this may
> not hold true for all BIOSes - i'm not sure whether the order is
> determined reliably.
> 
> On my system, it's similar (Ubuntu on SATA, Windows on PATA), but
> because it books first from PATA, the drive numbers are the other way
> around.  The relevant parts of my /boot/grub/menu.lst entries look like
> this:
> 
I would appreciate it if you would be good enough to have a look at my version of the menu.lst which follows here:-

## ## End Default Options ##

title Ubuntu 8.04.1, kernel 2.6.24-22-generic
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-22-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro quiet splash
initrd /boot/initrd.img-2.6.24-22-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-22-generic (recovery mode)
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-22-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro single
initrd /boot/initrd.img-2.6.24-22-generic

title Ubuntu 8.04.1, kernel 2.6.24-21-generic
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-21-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro quiet splash
initrd /boot/initrd.img-2.6.24-21-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-21-generic (recovery mode)
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-21-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro single
initrd /boot/initrd.img-2.6.24-21-generic

title Ubuntu 8.04.1, kernel 2.6.24-19-generic
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-19-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro quiet splash
initrd /boot/initrd.img-2.6.24-19-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-19-generic (recovery mode)
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-19-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro single
initrd /boot/initrd.img-2.6.24-19-generic

title Ubuntu 8.04.1, kernel 2.6.24-16-generic
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-16-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro quiet splash
initrd /boot/initrd.img-2.6.24-16-generic
quiet

title Ubuntu 8.04.1, kernel 2.6.24-16-generic (recovery mode)
root (hd0,4)
kernel /boot/vmlinuz-2.6.24-16-generic
root=UUID=7a6224b7-43dd-44f1-9615-9fe469473b8f ro single
initrd /boot/initrd.img-2.6.24-16-generic

title Ubuntu 8.04.1, memtest86+
root (hd0,4)
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


# This entry automatically added by the Debian installer for a non-linux
OS
# on /dev/sda1
title Microsoft Windows XP Home Edition
root (hd0,0)
savedefault
makeactive
chainloader +1



----------8<----------

Er,  What does "8<" mean?


Regards and thanks again.


Dave W