Hi, I've got a massive problem and I need urgent help,
please.

Trying to set up a dual boot, and I've rendered my
primary master (which has windows xp) un-bootable.

On this page:

http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/disks.html#NT-BOOTLOADER

in section 9.10... it says:

---------------------------------
"If FreeBSD is installed on the same disk as the NT
boot partition simply copy /boot/boot1 to
C:\BOOTSECT.BSD However, if FreeBSD is installed on a
different disk /boot/boot1 will not work, /boot/boot0
is needed.

  "Warning: DO NOT SIMPLY COPY /boot/boot0 INSTEAD
  OF /boot/boot1, YOU WILL OVERWRITE YOUR PARTITION
  TABLE AND RENDER YOUR COMPUTER UN-BOOTABLE!

"/boot/boot0 needs to be installed using sysinstall by
selecting the FreeBSD boot manager on the screen which
asks if you wish to use a boot manager. This is
because /boot/boot0 has the partition table area
filled with NULL characters but sysinstall copies the
partition table before copying /boot/boot0 to the MBR.

"When the FreeBSD boot manager runs it records the
last OS booted by setting the active flag on the
partition table entry for that OS and then writes the
whole 512-bytes of itself back to the MBR so if you
just copy /boot/boot0 to C:\BOOTSECT.BSD then it
writes an empty partition table, with the active flag
set on one entry, to the MBR."
---------------------------------

Well, I read that to mean that if I installed
/boot/boot0 with sysinstall, THEN i should copy
/boot/boot0 to C:\bootsect.bsd.

I did this by following instructions I found
elsewhere.  In FreeBSD, I tried this:

dd if=/dev/ad1 of=c:\bootbaby.sec bs=512 count=1

(I figured that by calling it "bootbaby.sec", I'd
rename it later to bootsect.bsd, which is what the NT
loader dual boot item was set at from a previous
failed attempt.)

I may also have copied /boot/boot0 to c:\bootsect.bsd
from off the CD.  I don't remember at this point --
I've been panicking for about 3 hours now.

Anyway... the point is this:

My NT loader got screwed up, and now I can't even get
into that disk (Windows XP is on the Primary Master,
ad0, and FreeBSD is on the Primary Slave, ad1).

I've tried creating a boot disk:
http://support.microsoft.com/default.aspx?scid=kb;en-us;305595
and even added some options, as suggested here:
http://tweakhomepc.virtualave.net/dual/rescuebootdisk.html
(and I used his exact boot.ini -- don't know what the
original boot.ini was, but his seems about right)...
but nothing's working.

The error I get from that one is:

"Windows could not start because of a computer disk
hardware configuration problem.
Could not read from the selected boot disk.  Check
boot path and disk hardware.
Please check the Windows documentation about hardware
disk configuration and your hardware reference manuals
for additional information."

Now, this might not seem like a FreeBSD issue, since
it's the Windows XP disk I can't get into, but it was
the FreeBSD boot loader that got me into this mess.

The FreeBSD warning was:

  "Warning: DO NOT SIMPLY COPY /boot/boot0 INSTEAD
  OF /boot/boot1, YOU WILL OVERWRITE YOUR PARTITION
  TABLE AND RENDER YOUR COMPUTER UN-BOOTABLE!

and although I was very careful about this and I was
sure I WASN'T doing what they were warning me
against...  I think that's what has happened.

How do I fix this?  I've even tried attaching the
drive to another computer (Win XP) as a Slave, to see
if I could "SEE" the contents of the drive, but I
can't.

Please don't tell me this disk is gone.  There's got
to be a way to re-create the original partition table
or re-write a new one that will see the disk's
contents, etc.???

This has been a very bad day for me.  PLEASE help, I'm
begging.  Thanks.

OZ

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