error when trying to mount ext2fs harddisk, wrong magic nbr??

[Torben Brosten]

After reading more man pages and the chapter "Adding a Disk" from UNIX System
Administration Handbook, 3rd ed. by Nemieth, Snyder, Seebass and Hein,  I 
realize that this ext2fs harddrive will best be fixed by putting back into a 
linux environment and proceeding with fdisk + fsck etc.

cheers

Torben Brosten wrote:
> I'm trying to decipher the error message:
> 
> ext2fs: #ad/0x000a: wrong magic number 0x8b6 (expected 0xef53)
> 
> I've been reading
> 
> man magic
> man file
> 
> but I have limited C experience. I see the references to ext2 in 
> /usr/share/misc/magic, particularly:
> 
>  >>0x43a  leshort  ^0x0000001 (mounted or unclean)
> 
> Since 0x8b6 is much greater than 0x43a, am I to conclude that the drive 
> was umounted incorrectly? If so, is there a way to use 'file' or some 
> other utility to edit the offending magic number to 0xef53?