Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: Sys Disk 5.0 Files
Message-ID: <32954@apple.Apple.COM>
Date: 7 Jul 89 17:51:11 GMT
References: <8907061756.AA07238@crash.cts.com>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 31

In article <8907061756.AA07238@crash.cts.com> pnet01!pro-nsfmat!pro-pac!tomj@nosc.mil writes:
>And another thing...why is it that there are no programs that will allow you
>to delete the newer file types on system disk 5.0?  I've tried CopyIIplus,
>Proterm, Cat Doctor etc all to no avail for the deletion of the newer CDEV
>($C7 file types...)  I had to use the original 5.0 to delete the operating
>system after I found out that all my programs would not work (PCT software!)  
>           ARGHHHHHH!!!

The $C7 filetype is *not* the reason you're having trouble deleting the
file.  (If you don't believe me, change the filetype and try to delete it
then.  Still no dice.)

The difficulty is the STORAGE TYPE.  The files in question happen to have
storage type "extended", meaning that they have a resource fork.  ProDOS 8
doesn't know about this storage type, so any application that uses the MLI
"DESTROY" call won't be able to delete it.

Applications like Copy II Plus, which go right to the block level, would need
to be updated to be able to be able to deal with extended files.

You can easily delete extended files under GS/OS.  Just use the Finder (which
is actually fun to use under 5.0, IMHO), APW, ORCA, ECP16, etc.

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
   AppleLink--Apple Edition: DAVE.LYONS      |   P.O. Box 875
   AppleLink--Personal Edition: Dave Lyons   |   Cupertino, CA 95015-0875
   GEnie: D.LYONS2 or DAVE.LYONS         CompuServe: 72177,3233
   Internet/BITNET:  dlyons@apple.com    UUCP:  ...!ames!apple!dlyons

   My opinions are my own, not Apple's.