Re: can't get Windows to boot on secondary disk

[Andrej Mikus]

In-Reply-To=15211.18834.607324.241398%40eden-hda7.my.local
Reply-To: 

Dear grub community,

I found a message at
http://mail.gnu.org/archive/html/bug-grub/2001-08/msg00026.html and it
is the applicable to my problem as outlined in the ssubject.

I bought a new drive and I am setting it up with RedHat Linux. I did not
want to make any changes to the original disk, so I moved it to
secondary. Installed grub on the new drive, but cannot get it working to
boot Windows on secondary. With the map command it starts, but as
mentioned in grub documentation:

> Caution: This is effective only if DOS (or Windows) uses BIOS to access
> the swapped disks. If that OS uses a special driver for the disks, this
> probably won't work. 

Because the system hangs when Windows goes to 32-bin mode, this is
indeed the problem. But the reason I am looking for help in this list is
the fact that I am able to boot succesfully from the secondary disk with
a configuration change in BIOS setup. I use Intel SE440BX-2 mainboard
with Phoenix BIOS 4.0 Release 6.0, Version 4S4EB2X0.86A.0009.P03 and it
contains setting for Hard drive boot order. If I put here the secondary
disk to a primary position, Windows boots without any problem.

I am wondering what kind of change does this BIOS setting do, and if
similar could be possible with grub. CMOS update and reboot is not very
convenient. I am considering swapping the drives and installing grub on
the Windows one, but seeing that BIOS can do it, I would like to
understand where is the actual problem. Is it possible that it swaps the
controller I/O ports or something othe hardware related?

Thanks in advance for any applicable comments.

Andrej