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Date: Wed, 11 Nov 2015 17:33:59 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Documentation problem with the UG - POSIX devices?
Message-ID: <20151111163359.GA11582@calimero.vinschen.de>
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References: <6CF2FC1279D0844C9357664DC5A08BA21BBF85BD AT msgb09 DOT nih DOT gov>
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On Nov 11 16:22, Buchbinder, Barry (NIH/NIAID) [E] wrote:
> https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-posixd=
evices
>=20
> In the paragraph starting "Block devices are accessible ..."
>=20
> "... or the first partition on the third harddisk is \device\harddisk2\pa=
rtition1."
>=20
> Shouldn't partition1 be the second partition, not the first?

No.  partition0 is a symlink pointing to DR0, which in turn is the
entire physical disk.  As admin:

  $ ls -l /proc/sys/Device/Harddisk0 | grep DR0
  brwxrwx--x 1 Administrators SYSTEM 0, 250 Nov 11 17:32 DR0
  lr--r--r-- 1 Administrators SYSTEM      0 Nov 11 17:32 Partition0 -> /pro=
c/sys/Device/Harddisk0/DR0
  $ ls -l /proc/sys/GLOBAL\?\? | grep DR0
  lr--r--r-- 1 Administrators SYSTEM        0 Nov 11 17:32 Disk{2b5b33fa-71=
85-944d-98ae-4ff14c0e5391} -> /proc/sys/Device/Harddisk0/DR0
  lr--r--r-- 1 Administrators SYSTEM        0 Nov 11 17:32 PhysicalDrive0 -=
> /proc/sys/Device/Harddisk0/DR0

So the real partitioning starts with partition1, since partition0 is a
link to the physical disk as a whole.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

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