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Date: Sat, 12 Jun 1999 20:52:27 -0500
From: Jim & Jenn Dumser <dumser AT bigfoot DOT com>
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To: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: cygwin tar to tape?
References: <s7318bc6 DOT 078 AT experian DOT com> <3731B674 DOT 63588B38 AT cityweb DOT de> <375E670E DOT 84E188E8 AT ericsson DOT com> <37617756 DOT 14E1EAF2 AT vinschen DOT de>
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On Fri, 11 Jun 1999 22:53:42 +0200, Corinna Vinschen  
<corinna AT vinschen DOT de> wrote:
> You get this `permission denied' when you try to read a tape, that is
> written with another blocking factor than the Windows tape driver is 
> set to. Windows has no automatical recognition for this!!!
> 
> You must(!) know the blocking (U*Xes typically uses 5K blocking) and
> you have to set it with my `mt' command from ftp site

But the "normal" tar has a blocking option. Okay, WinNT won't
automagically determine block size; even the Unixes I've worked with
will only figure it out if you tell it to use a block size bigger than
the actual size. So why won't the standard POSIX (or whatever) calls in
GNU tar correctly set the block size in cygwin? Why do we need a
specially hacked version of tar/cpio/dd/mt/etc.? I would think the
correct way to address this problem would be to hide the details of the
"Windows way" behind the standard "Unix way." Isn't that the idea of a
Unix-emulation layer?

BTW - While it is not a big deal in this case and I appreciate your
help, my original message was sent directly to you, Corinna, and not to
the list. Since you did not ask for my permission, to copy my personal
message to this list is not in the best of form.

-- 
Jim & Jenn Dumser  dumser AT bigfoot DOT com

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