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Number   :  3488
Date     :  2003-01-08
Author   :  Kan Yabumoto
Subject  :  Re: Error in 2.83.4?
Size(KB) :  2



Melissa:

Thank you for your report.

Based upon our preliminary investigation, the problem of
the "Invalid source directory" may be something to do
with the Windows system not being able to characterize
the type of volume on a remote computer. So far, we observed
strange behavior in Win9X which fails to perform some
Win32 API function until a directory on the target volume
is accessed at least once before the attempt to determine
the volume type.

This tentative conclusion is based upon our observation
that XXCOPY's access to a remote volume fails on its
first attempt to do so. If you run a simple volume access
such as the following command just once,

DIR \\remote_server\resource\abc

then, the Win9X system has no problem characterizing the
destination volume. So, for now, if you run a command
similar to the above, XXCOPY will have no problem.

Our tentative conclusion is that Win9X may have a
minor bug which fails to determine the volume type
(e.g., hard disk, CD-ROM, floppy disk, remote disk, etc.)
in a remote storage device. Interestingly, we don't
observe the same thing in the XP environment. Our
debugging procedure is frustratingly slow because
once the target volume is "accessed" by a simple
program such as DIR, the problem disappear. The reason
some earlier versions of XXCOPY didn't see the problem
may be that we have been just lucky by accessing the
remote volume before XXCOPY attempts to determine
what type of storage device the directory is.

Boy, all kinds of funny situations are happening
all over the place.

Kan Yabumoto
====================================================


At 2003-01-06 12:39, you wrote:
>Kan, this version does not "see" a server address.
>
>My autoexec sets masterpath=\\ccosnetw\litho\master.
>
>
>
>Using 2.82.6 Pro in Windows ME, the screen shows:
>
>C:\Temp>xxcopy /l %masterpath%\
>
>XXCOPY == Pro Edition == Ver 2.82.6 (c)1995-2002 Pixelab, Inc.
>
>----------------------------------------------------------------------
>\\CCOSNETW\LITHO\MASTER\install.bat 7,585
>----------------------------------------------------------------------
> Directories processed = 1
> Total data in bytes = 7,585
> Elapsed time in sec. = 0.032
> Action speed (MB/min) = 14.22
> Files selected = 1
> Exit code = 0 (No error, Successful operation)
>
>
>
>Using 2.83.4 Pro:
>
>C:\Temp>xxcopy /l %masterpath%\
>
>XXCOPY == Pro Edition == Ver 2.83.4 (c)1995-2002 Pixelab, Inc.
>
>Invalid source directory (\\CCOSNETW\LITHO\MASTER\)
>Invalid source directory (\\CCOSNETW\LITHO\MASTER\)
>
>
>
>
>
>
>
>
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