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Date: Tue, 9 Apr 2013 13:41:44 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: /dev/sdb permission denied
Message-ID: <20130409114144.GB15271@calimero.vinschen.de>
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References: <loom DOT 20130408T175158-592 AT post DOT gmane DOT org> <5162F964 DOT 3090306 AT cygwin DOT com> <loom DOT 20130409T123242-737 AT post DOT gmane DOT org>
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User-Agent: Mutt/1.5.21 (2010-09-15)

On Apr  9 10:41, andrei wrote:
> Larry Hall (Cygwin <reply-to-list-only-lh <at> cygwin.com> writes:
> > What's the result of 'ls /dev/sd*'?
> 
> Hello Larry,
> 
> result of 'ls /dev/sd*':
> 
> $ ls /dev/sd*
> /dev/sda   /dev/sda2  /dev/sdb1  /dev/sdc1  /dev/sdd1  /dev/sde1
> /dev/sda1  /dev/sdb   /dev/sdc   /dev/sdd   /dev/sde
> 
> according to <http://cygwin.com/cygwin-ug-net/using-
> specialnames.html#pathnames-posixdevices> I should have /dev/shm and 
> /dev/mqueue and possibly other directories in the /dev directory?

Yes, but obviously they are not shown if you filter the ls output
as above.  A plain `ls' should show them.

> $ cat /proc/partitions
> major minor  #blocks  name
> 
>     8     0 312571224 sda
>     8     1 301684603 sda1
>     8     2  10884037 sda2
>     8    16   1000944 sdb
>     8    32         0 sdc
>     8    48         0 sdd
>     8    64         0 sde
> 
> the above shows the 1gig CF card is detected and has 'sdb' assingend to it.
> 
> so it looks like the problem is that I'm missing /dev/shm and /dev/mqueue - 
> is this correct? what can be done to solve

This has nothing at all to do with it.  But the above output from
/proc/partitions is strange.  Where's sdb1?  Anyway, typically you read
from sdb1 on CF cards and their siblings.  Only as admin you can read
from sdb.  I just tested this again with a CF card in an USB reader
attached to a W7 64 bit machine running Cygwin 1.7.17.  Are you *sure*
you tried it with admin rights?  Did you start your Cygwin shell with
`Run as administrator'?


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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