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From: Andries.Brouwer@cwi.nl
To: michael_e_brown@dell.com
Cc: Matt_Domsch@exchange.dell.com, linux-kernel@vger.kernel.org
Subject: Re: block ioctl to read/write last sector
Date: Wed, 14 Feb 2001 00:49:24 +0100 (MET)	[thread overview]
Message-ID: <UTC200102132349.AAA97331.aeb@vlet.cwi.nl> (raw)

    From michael_e_brown@dell.com Wed Feb 14 00:37:25 2001

    > Look at the addpart utility in the util-linux package.
    > It will allow you to add a partition disjoint from
    > previously existing partitions.
    > And since a partition can start on an odd sector,
    > this should allow you to also read the last sector.
    >
    > Do I overlook something?

    Yes. The addpart utility just uses the block-layer ioctls to dynamically
    add and/or remove partitions. What this is doing is just adjusting the
    kernel's idea of what the current partition scheme is. This has _nothing_
    to do with actually reading or writing data from the disk.

But it changes the idea of odd and even.
A partition can start on an odd sector.

Andries

             reply	other threads:[~2001-02-13 23:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-02-13 23:49 Andries.Brouwer [this message]
2001-02-14 14:19 ` block ioctl to read/write last sector Michael E Brown
  -- strict thread matches above, loose matches on Subject: below --
2001-02-14 15:43 Andries.Brouwer
2001-02-14 15:56 ` Michael E Brown
2001-02-14 15:59 ` Michael E Brown
2001-02-14 13:26 Matt_Domsch
2001-02-14 12:31 David Balazic
2001-02-14 14:10 ` Michael E Brown
2001-02-17  7:29 ` Andre Hedrick
2001-02-14  1:00 Matt_Domsch
2001-02-13 22:54 Andries.Brouwer
2001-02-13 19:24 ` Martin K. Petersen
2001-02-14  5:51   ` Michael E Brown
2001-02-14 14:23     ` Martin K. Petersen
2001-02-13 23:37 ` Michael E Brown
2001-02-14  0:21   ` Manfred Spraul
2001-02-14  5:47     ` Michael E Brown

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