Date   : Sat, 18 Oct 2008 15:00:04 +0100
From   : jumbos.bazzar@... (Mark Haysman)
Subject: *COPY Disc Corruption

Hi.

I'm presuming we're ruling out things like a duff disk, or bad connection 
between the drive and the Master.

Have you tried the same thing with another Master (or 1770d Beeb)? Seems 
you've got a issue, just need to track down a bit closer what's causing it.

You could try SRLOADing DFS 2.26 into a SWR bank, UNPLUG the resident DFS 
and try that. Have you tried copying in ADFS? Does the same happen there?

Mark.

----- Original Message ----- 
From: "Ian Wolstenholme" <bbcmailinglist@...>
To: <bbc-micro@...>
Sent: Saturday, October 18, 2008 2:32 PM
Subject: Re: [BBC-Micro] *COPY Disc Corruption


There is something very odd happening here.  I have now copied the
files individually using *MOVE which appeared to work and the disc
catalogued OK.  I then tried to DUMP one of the files to check they
had copied correctly but the file length was much longer than I expected,
showing up pages of blank sectors with &E5 bytes.  When I went back to
catalogue the disc again, the disc title had been removed, the lock
attribute had been taken off the file I was DUMPing, and the file info
has changed from &FF1B00 FF8023 to &00000 FFFFFF and a new
file length of &4000!

Best wishes,


Ian

----- Original Message -----
From: Ian Wolstenholme [mailto:bbcmailinglist@...]
To: bbc-micro@...
Sent: Sat, 18 Oct 2008 14:18:19 +0100
Subject: [BBC-Micro] *COPY Disc Corruption

Does anyone know of a problem with *COPY in DFS causing the
destination disc to be corrupted?

I have just been trying to copy 3 very short files from one DFS disc
to another using *COPY 0 1 s.*

The operation seems to complete successfully but attempting to
catalogue the destination disc in drive 1 gives a disc fault 18 at
00/00 and the disc refuses to re-format, reporting disc fault
FE after completing the format and going back to write the
catalogue.  I've tried this with two discs, both of which are now
unusable.

I'm using a Master 128 with MOS 3.20 and Watford Electronics
5.25"/3.5" drive plinth to copy from 5.25" to 3.5".  I've never
had this happen before; does anyone know why it might be
happening?

Best wishes,



Ian






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