Re: how to deal with bad disk blocks?

From: Gary Roach (jgroach_at_NOSPAMcogeco.ca)
Date: 06/02/04

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    Date: Wed, 2 Jun 2004 12:11:31 -0400

    DOS had marked sectors as bad on this disk previously. someone else
    suggested that linux would in fact not use the bad sectors and that the
    error could be ignored. i would like a way to test this - similar to the
    older versions of dos and windows defrag that would show a graphic of the
    sectors and which ones had been marked bad. i'm going to have a look for a
    utility for linux that will do this. thanks for the help

    gary

    "Brad Olin" <bwo@bwo1.com> wrote in message
    news:frnrb0pe5jpg59cs00vs5gk2n1923citb9@4ax.com...
    > On Tue, 1 Jun 2004 19:35:11 -0400, "Gary Roach"
    > <jgroach@NOSPAMcogeco.ca> wrote:
    >
    > >During the installation of RH9 it was reported that bad blocks had been
    > >detected on my disk and it was recommended that i don't use the hard
    drive.
    > >i know the disk has a bad sector - is there any way to mark it bad but
    still
    > >be able to use the disk?
    >
    > There may be a linux/redhat solution to this, but I'm not aware of it.
    >
    > All modern disks have service sectors for just this reason. There are
    > low level software program that detect and map out the bad sector(s) and
    > then it maps in a service sector in it's place. The software that I saw
    > used, a DOS based program, was at a hard disk repair store. They charge
    > $10 each to fix drives, takes about 30 minutes. It might be that
    > partition magic (a windows based program) can do this, but I don't know
    > that for a fact.
    >
    > After you have all bad sectors mapped out, or marked as bad, then you
    > can partition, format, and install linux.
    >
    > Sorry that I don't know the complete detail for you, but you do have to
    > address the bad sector(s) before you can use the drive.
    >
    >
    > Brad
    > --
    > "Laughter is good medicine and it has no bad side effects."
    > Unknown
    > Bradley W. Olin
    > http://www.bwo1.com

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