Posted on 2000-04-11
I just lost all the Data off of a Hard Disk I was Using.
It was during an xcopy from one directory to another.
The copy failed, probally due to bad cluster( which I found
later). However, after the crash, I could no longer access
the disk. An Invalid Media type Error was returned. I checked the
bios and it reported the correct CHS values and capacity, which was
540 megs. However, when I ran FDISK, the partion information said
Active, Primary Dos, 520 megs, 100% usage.
Undeneath, the summary said total disk space 504 megs.
I tried FDISK /MBR, SYS, but none would overcome the Invalid Media type.
I figured I had head crash on the boot sector so with nothing to loose I
formatted the disk. It formated fine, I placed the system back on and away
it went. When I ran Norton Disk Doctor on it , Norton asked me If I had
a partition I could fromerly acces but now can't as iff there was a "Phantom
Partion" defined. I defined no such partion. It was always a 1 partion drive.
Norton also said it could not report drive characteristics as the HD was not a
Now I am concerned that If I fill the drive up with data the crash will occur again. Norton locked out the bad sectors and the drive seems to work.
Finally, brings me to my question, if your still with me!
Why does My Bios report the proper CHS values and capacities
while FDISK reports another? Also, what would have caused a
seemingly safe procedure such as coping files to wipe out a partition
or make a drive unreadable?