DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; q=dns; s=
	default; b=uh0Www/RWS7IbAjt0V922GGe/BeuHL8aL8jW+eat7rVEo01HvFwxw
	7W4fMTrbCGPhfwiBPzF3E9dn9+I2OBmq48DCKp4rw1ropfgv8sURyG0p/jSLWmv2
	+t6LHaI1bPxqhcQhEcw0PuF4lCGgw4SKkNqrauguyaRTpSELOG3BDI=
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Date: Tue, 20 Aug 2013 22:34:12 +0200
From: Corinna Vinschen <corinna-cygwin@cygwin.com>
To: cygwin@cygwin.com
Subject: Re: mt and tar fail on LTO-5 drives
Message-ID: <20130820203411.GN31248@calimero.vinschen.de>
Reply-To: cygwin@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
References: <20130819101917.GC18757@calimero.vinschen.de> <52124601.5000409@mailme.ath.cx> <20130819171203.GC31248@calimero.vinschen.de> <52126DBF.7040904@mailme.ath.cx> <20130820082905.GE31248@calimero.vinschen.de> <20130820090536.GF31248@calimero.vinschen.de> <521359A0.8030709@mailme.ath.cx> <20130820133251.GI31248@calimero.vinschen.de> <521377D9.8020309@mailme.ath.cx> <20130820144447.GA445@calimero.vinschen.de>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;	protocol="application/pgp-signature"; boundary="hdhkc9EpVJoq6PQ6"
Content-Disposition: inline
In-Reply-To: <20130820144447.GA445@calimero.vinschen.de>
User-Agent: Mutt/1.5.21 (2010-09-15)

--hdhkc9EpVJoq6PQ6
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Aug 20 16:44, Corinna Vinschen wrote:
> On Aug 20 16:06, bartels wrote:
> > On 08/20/2013 03:32 PM, Corinna Vinschen wrote:
> > >On Aug 20 13:57, bartels wrote:
> > >>)
> > >>
> > >>
> > >>Thanks, I think we can close this one!
> > >Glad to read that.  You could do me a favor, though.  At the moment I
> > >have no tape drive on any Windows machine for testing.  Can you please
> > >test the new `partseek' command in mt 2.4.0 which I announced a couple
> > >of minutes ago and see if it does what it advertises in `man mt'?
> > >
> > >
> >=20
> > Sure. How long does it take to propagate to the mirrors?
> > All I see is 2.3.3.1
>=20
> Depends on the mirror.
>=20
> > And would that be experimental, or current?
>=20
> 2.4.0 is current now.

Never mind.  With a lot of help by my collegues big in virtualization,
I managed to set up a Windows VM with access to the SCSI tape drive in
the host machine.  The partseek command works as advertized, apparently.

However, while testing I found that the mkpartition command didn't work
due to a bug in Cygwin.  So you can use partitioned LTO tapes, but you
can't partition LTO tapes(*) with Cygwin up to and including the current
release 1.7.24.  I fixed that in CVS so that will work with the next
Cygwin release.


Corinna


(*) Actually, what doesn't work is creating two partitions on tape
    drives supporting initiator partitions (like DDS, LTO, SLR).  What
    does work is creating a single partition on such drives, or to
    create one or two partitions on drives only supporting fixed
    partitions (like older SLR).
=20=20=20=20
    This bug is present since 2004 and nobody noticed it.  I guess that
    means there aren't many people out there actually partitioning their
    tape drives...


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

--hdhkc9EpVJoq6PQ6
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)
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=OvXE
-----END PGP SIGNATURE-----

--hdhkc9EpVJoq6PQ6--