🚀 go-pugleaf

dslg0849@uxa.cso.uiuc.edu (Daniel S. Lewart) writes:

> Recently, when I 'chkdsk' my hard disk, I get the following error message:
> 	c:\> chkdsk
> 	Volume BIG_BLACK   created Jan 1, 1991 12:00a
> 	Probable non-DOS disk.
> 	Continue  (Y/N)?
> If I type 'y', it continues and everything works fine.  The DOS manual claims
> the FAT ID byte is bad and that the disk has become 'badly damaged'.  In fact
> the disk seems to be functioning perfectly well.
> 
> Is there any way I can fix this problem besides reformatting the disk?

Something has partly trashed your FAT.  The first byte in the FAT should be 
hex F8.  The first byte is the "media descriptor byte", and F8 is for "fixed 
disks".  To stop the message, use a sector editor and change the first byte 
back to what it should be.  If your system is working fine now, then I 
wouldn't worry about it, but you should realize something has altered your 
FAT, and that's not a healthy thing for a program to do.  The FAT should 
never be touched except by programs such as FDISK or FORMAT.