Re: GRUB woes (install to hde)

From: Mike McCarty (mike.mccarty_at_sbcglobal.net)
Date: 09/30/05

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    Date: Fri, 30 Sep 2005 16:09:06 -0500
To: debian-user@lists.debian.org

    Alvin Oga wrote:
    > hi ya mike
    >
    > On Fri, 30 Sep 2005, Mike McCarty wrote:
    >
    >
    >>> dd if=/dev/hda of=/dev/hde bs=446 count=1
    >>
    >>This works if /dev/hda is the exact same size and partitioning
    >>as /dev/hde.
    >
    >
    > nah.... it leaves the br alone

    Umm, yes it leave the BRs alone. But the BRs don't contain
    the PT. It does clobber the MBR, but does not (*) clobber
    the PT portion of the MBR.

    >
    >
    >>system, or somebody? Otherwise, I'd fear possibly clobbering the
    >>PT information
    >
    >
    > if that's the case:
    >
    > fdisk -l /dev/hda
    >
    > save the start and end cylinders and partition type info
    > on a piece of paper taped to your disk

    I prefer to use sfdisk, since it can be instructed to produce
    output it can use as input later to recreate the PT.

    >
    > - by default, all "good" admins already do that to begin
    > with ...

    Natch.

    (*) At least, it shouldn't. I tried it with a floppy and
    it left the last several bytes as they were on the floppy.
    It *should* work the same on a hd. YMMV

    Mike 

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