norton utilities trash xenix

[Earl H. Kinmonth]

I don't know where the balance of stupidity lies, but in any event, the
latest version of Norton is a hair trigger disaster waiting to happen
if you have MSDOS and Xenix on the same disk.  Apparently, ndd ("norton
disk doctor") does not bother to check whether a partion is actually
MSDOS or not.  With some options, it assumes everything on the disk
is MSDOS with fatal results for the Xenix partition.

I cannot give more detail because I'm not going to risk having to rebuild
a 70 meg system just to find exactly which command trashed the system.