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Message-ID: <4333525E.5070003@byu.net>
Date: Thu, 22 Sep 2005 18:54:54 -0600
From: Eric Blake <ebb9 AT byu DOT net>
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Subject: Re: Anyone know about interaction of 'dd' with memory cards?
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According to Dave Korn on 9/22/2005 11:22 AM:
>   Now, dd is supposed to terminate the copy operation when it reaches EOF on
> the input, and I doubt that is broken.  What I'm wondering is, I _expected_
> that reading /dev/sdb would give an EOF when the entire drive's contents had
> been read.  Was this a false assumption?  Is Cygwin _supposed_ to return an
> EOF when you reach the end of a device volume, and it (or dd) is broken, or
> has this never been implemented?

Have you tried it on Linux, for comparison?  If anything, it is cygwin and
not dd that is at fault here (your analysis about dd stopping at EOF is
correct), although I don't know if Windows provides enough hooks for
cygwin to detect end of disk to turn that into EOF.

- --
Life is short - so eat dessert first!

Eric Blake             ebb9 AT byu DOT net
volunteer cygwin coreutils maintainer
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