Subj : Re: Cannot boot Windows after running lilo; "A disk read error occurred"
To   : alt.os.linux.mandrake,comp.os.linux
From : David Jones
Date : Sat Nov 20 2004 10:59 am

Bill Unruh wrote:
> David Jones <dj@nospam.com> writes:
> 
> ]Hi,
> 
> ]My Mandrake 10.1 dual-boot (Windows XP/Mandrake) was working fine until 
> ]   I accidentally ran "lilo" (from Mandrake). The command completed 
> ]without errors but now at the boot menu I can no longer boot into 
> ]Microsoft Windows. It freezes with a black screen and plain text message:
> 
> ]A disk read error occurred
> ]Press Ctrl+Alt+Del to restart
> 
> ]other=/dev/hda1
> ]         label="microsoft_windows"
> ]         table=/dev/hda
> ]         map-drive=0x80
> ]            to=0x81
> ]         map-drive=0x81
> ]            to=0x80
> 
> This says that your windows is on your second hard drive-- the slave on the
> first ide slot. The map commands say to make the system believe that the
> master should be treated as though it were the second drive and the slave
> as though it were the first. 

Bill was right. I commented-out the four lines from map-drive=0x80 to 
to=0x80, ran lilo, and successfully booted into Windows.

I think I had a second hard drive slotted into my IBM Thinkpad 
"Ultra-Bay" when I accidentally ran "lilo" to cause the problem.

Thanks Bill.

DJ

.