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Date:      Thu, 13 Jul 2017 12:06:20 -0700
From:      Doug Hardie <bc979@lafn.org>
To:        Ian Smith <smithi@nimnet.asn.au>
Cc:        "freebsd-questions@freebsd.org Questions" <freebsd-questions@freebsd.org>
Subject:   Re: Unusual Question
Message-ID:  <33484077-6ADF-489D-BB5A-27827393C41F@mail.sermon-archive.info>
In-Reply-To: <20170714011941.C20026@sola.nimnet.asn.au>
References:  <mailman.95.1499860802.27627.freebsd-questions@freebsd.org> <20170713231222.U20026@sola.nimnet.asn.au> <20170714011941.C20026@sola.nimnet.asn.au>

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> On 13 July 2017, at 08:24, Ian Smith <smithi@nimnet.asn.au> wrote:
>=20
> On Fri, 14 Jul 2017 01:12:17 +1000, Ian Smith wrote:
>=20
>> There is no oskip; I have to check dd(1) every time myself .. =
there's:
>>     iseek=3Dn  Seek on the input file n blocks.  This is synonymous =
with
>>              skip=3Dn.
>>     oseek=3Dn  Seek on the output file n blocks.  This is synonymous =
with
>>              seek=3Dn.
> [..]
>>> I didn't capture this but I did run the dd with the oskip of the big=20=

>>> number and it showed all zeros.
>>=20
>> There is no oskip.  oseek (aka skip) would work.
>=20
> Argh .. I've done it myself: that should say oseek (aka seek).  For =
this=20
> very reason I _never_ use iseek or oseek, being quite confused enough =
:)
>=20
> cheers, Ian


Yes oskip should have been oseek.  I didn't have access to the actual =
screen or man page when writing that all down.  I previously set =
kern.geom.debugflags=3D16.  The system here is very old and i386 only.  =
I may play with that again if time permits.=



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