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From:	"Doug Wyatt" <dwyatt AT sunflower DOT com>
To:	cygwin AT sourceware DOT cygnus DOT com
Date:	Fri, 4 Aug 2000 14:38:24 -0500
MIME-Version:	1.0
Subject:	Re: Tar failure on large file (NT)
Reply-to:	dwyatt AT sunflower DOT com
CC:	colin DOT mcgeoch AT gro-scotland DOT gsi DOT gov DOT uk
In-reply-to:	<80256931.0038E544.00@gro-scotland.gsi.gov.uk>
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This looks like a 32/64-bit issue.  Try entering 4415176704 in the NT calculator
in decimal mode, then click on Hex.  Supposedly, GNU tar 1.13 has extended tar's
ability to handle file sizes > 2GB so you might try building and using that.  Using
some combination with gzip may provide a workaround, but probably not.

Regards,
Doug Wyatt

> Hi, 
> When I run  ?tar -cvf - sourcefilename>targetfilename? (in a DOS window) on a
> file of size 4,415,176,704 bytes, the resulting TAR file only has size
> 120,217,600 bytes , although no error messages are given.  In contrast, the same
> command works successfully on a smaller file (eg 120,217,600 bytes).
> 
> The only archives reference I have found on tar/large files seems to relate to a
> different problem on much smaller files(25MB). I have only recently started with
> cygnwin, so apologies if I have nissed something obvious.
> 
> Is there a file size limit on using tar ?
> Could tar be finding a byte which fools it into thinking it has reached the end
> of the file when it hasn?t ?
> 
> Thanks
> Colin
> 
> 
> 
> 



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