[ltp] windows won't boot on dual boot T40

[Matthias Posseldt]

On Monday 22 December 2003 03:55, Paul Kaplan wrote:
> Can you re-install the Windows boot loader to the MBR (I've seen the
> routine somewhere, but can't recall where), boot XP to verify that
> the installation isn't corrupt and then re-install lilo?  You may
> need to let XP do a chkdsk or try to let the XP installer do a
> repair.

You can boot from a WinXP CD and start the recovery console and type 
"fixmbr" and "fixboot". I often use it when I install new harddrives 
which don't have any MBR.

> > Here is some background info:
> > I used qtparted to partition the disk leaving Windows in
> > hda1 and installing Linux in hda2 and hda4, with swap in hda3.
> > fdisk reports:
> >
> > Disk /dev/hda: 80.0 GB, 80026361856 bytes
> > 240 heads, 63 sectors/track, 10337 cylinders
> > Units = cylinders of 15120 * 512 = 7741440 bytes
> >
> >    Device Boot      Start         End      Blocks   Id  System
> > /dev/hda1   *           1         948     7166848+   c  W95 FAT32
> > (LBA) /dev/hda2   *         949        1078      982800   83  Linux
> > /dev/hda3            1079        1208      982800   82  Linux swap
> > /dev/hda4            1209        9921    65870280   83  Linux

You should also toggle the bootable flag for /dev/hda2. That is not a 
valid partition table for a windows boot record since there is more 
than one partition bootable.

For booting WinXP the best thing is to use grub. See 
http://www.linux-sxs.org/administration/grubxp.html for details. The 
simplest entry to boot Windows in /boot/grub/menu.lst is:

title Windows XP
	root(hd0,0) [or rootnoverify]
	chainloader +1

to boot Windows from /dev/hda1.

Ciao, Matthias
-- 
There is still the danger of EU software patents!

http://swpat.ffii.org/