home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.sys.apple2
- Path: sparky!uunet!munnari.oz.au!metro!ipso!fawlty!johnmac
- From: johnmac@fawlty.towers.oz.au (John MacLean)
- Subject: More Sparse Files.
- Organization: Tower Technology, Sydney
- Date: Fri, 20 Nov 1992 04:37:14 GMT
- Message-ID: <1992Nov20.043714.28585@fawlty.towers.oz.au>
- Sender: johnmac@fawlty.towers.oz.au (John MacLean)
- Lines: 33
-
- I've received quite a few replies, none of them quite answering what I
- really need to know, so I'll try and be a bit more precise this time:
-
- 1) I need an existing commonly available commercial program that runs on
- a //e (such as Copy II Plus), that can create a disk image on a hard disk
- (or 3.5" disk) of a 5.25" disk.
- I can write this code quite easily (and in fact already have), but I
- don't really want to go to the effort of writing a nice //e front end for
- it, if Copy II Plus will do it (since 90% of //e users use Copy II Plus).
- If I have to I will, but I need to know whether or not I have to.
- I have been told that old versions of Copy II Plus will do this (and
- create a file of type IMG), but will current versions?
-
- 2) If Copy II Plus can still do this, does it create sparse files or
- non sparse files when there are large areas of zero bytes on the disk?
- ie: Is an image of a freshly formated 5.25" disk 140K, or is it more
- like 10K?
-
- 3) Is there a way, to force GS/OS with the ProDOS FST ONLY, to create
- files as non-sparse, even though the file contains large areas of zero
- bytes? - and if so how?
- I've been told that the ProDOS FST is quite smart and always forces
- sparse files.
- I'm looking for a way, preferably documented, but I'll take anything
- that works, to force it to create non-sparse files.
-
- If anyone has any answers to these exact questions please mail or post.
- Thanks, John MacLean.
- --
- This net: johnmac@fawlty.towers.oz.au Phone: +61 2 427 2999
- That net: uunet!fawlty.towers.oz.au!johnmac Fax: +61 2 427 7072
- Snail: Tower Technology, 1 Apollo Pl, Home: +61 2 449 5930
- Lane Cove, NSW 2066, Australia.
-