Re: how to test disk for bad sector

From	Marco Möller <talby@debianlists.mobilxpress.net>
Newsgroups	linux.debian.user
Subject	Re: how to test disk for bad sector
Date	2020-08-30 21:00 +0200
Message-ID	<AJAIx-4gX-1@gated-at.bofh.it> (permalink)
References	<AIZpD-77B-7@gated-at.bofh.it> <AJhmx-17T-13@gated-at.bofh.it> <AJjy1-2l7-1@gated-at.bofh.it> <AJk13-2Kl-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 30.08.20 03:03, Gene Heskett wrote:
> On Saturday 29 August 2020 20:39:29 Marco Möller wrote:
> 
>> On 30.08.20 00:01, Long Wind wrote:
>> (...)
>>
>>> [liveuser@localhost-live <mailto:liveuser@localhost-live> ~]$ sudo
>>> dd if=/dev/zero of=/dev/sda1 bs=8M status=progress
>>
>> (...)
>>
>>> 14386462720 bytes (14 GB, 13 GiB) copied, 151.001 s, 95.3 MB/s
>>> dd: error writing '/dev/sda1': No space left on device
>>> 1719+0 records in
>>> 1718+0 records out
>>> 14418915840 bytes (14 GB, 13 GiB) copied, 153.319 s, 94.0 MB/s
>>
>> Unfortunately, this looks bad for your disk, because you said in
>> another post that your disk is supposed to provide a storage space of
>> 320 GB. But in this test only 14 GB could be written to it and then it
>> is claimed to already have been filled completely. So, in context of
>> another post of yours, where you say that you could install a system
>> to a new disk mounted to that same computer, you found the problem:
>> the supposed to be 320 GB hard disk is either broken in a very strange
>> way, or it is even a fake disk sold to you as a fraud.
>>
>> Wishing you good luck with your new disk and new installation!
>> Marco.
> 
> Uh, I have to ask. Or maybe I came into the middle of what has become a
> boring thread?
> 
> dd is a whole device writer, but his command line is to an existing
> partition? His command line should not have had the 1 according to my
> thinking.  His whole disk might be 320 gigabytes as /dev/sda, but how
> big is sda1?
> 
> Cheers, Gene Heskett
> 

You are right, Gene!  I did not notice that it was written to partition 
"/dev/sda1", because I didn't expect this test to only be written to a 
partition instead of test writing to the whole disk. I have not noticed 
this detail in the answer when replying to it, shame on me.
My recommendation was to use the command like this:
   sudo dd if=/dev/zero of=/dev/WritingToThisDisk bs=8M status=progress
Long Wind, the test works only if you overwrite the full disk. So, as 
Gene pointed out, after the test which you did by now it cannot be 
concluded what I concluded in my former answer!

We by now only know that writing to the 14 GB of partition "/dev/sda1" 
worked correctly, but we do not know where on the disk this 14 GB are 
actually located and we also still do not know about the rest of the 
disk and if it continues to work fine also for a bigger data load 
occupying the electronics for longer time.

So, if you are interested to still know about your old drive, although 
you said that you already installed successfully to a new drive, then 
you may want to direct the test all the device and not only a partition 
of it.

Best regards,
Marco.

Thread

how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 05:10 +0200
  Re: how to test disk for bad sector Patrick Bartek <nemommxiv@gmail.com> - 2020-08-29 05:40 +0200
    Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 07:50 +0200
      Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-29 10:20 +0200
        Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 12:00 +0200
          Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-30 00:10 +0200
            Re: how to test disk for bad sector David Wright <deblis@lionunicorn.co.uk> - 2020-09-08 06:30 +0200
              Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-09-09 16:40 +0200
      Re: how to test disk for bad sector Patrick Bartek <nemommxiv@gmail.com> - 2020-08-29 19:10 +0200
        Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 22:20 +0200
      Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-30 00:00 +0200
        Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-30 01:10 +0200
          Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-30 01:40 +0200
            Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-30 02:10 +0200
              Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-30 02:40 +0200
              Re: how to test disk for bad sector Andy Smith <andy@strugglers.net> - 2020-08-30 16:10 +0200
                Re: how to test disk for bad sector Charles Curley <charlescurley@charlescurley.com> - 2020-08-30 16:30 +0200
                Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-31 00:10 +0200
                Re: how to test disk for bad sector Charles Curley <charlescurley@charlescurley.com> - 2020-08-31 04:10 +0200
                Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-31 05:00 +0200
                Re: how to test disk for bad sector Patrick Bartek <nemommxiv@gmail.com> - 2020-08-31 18:30 +0200
                Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-31 23:50 +0200
                Re: how to test disk for bad sector Patrick Bartek <nemommxiv@gmail.com> - 2020-09-01 04:20 +0200
                Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-09-01 05:40 +0200
                passwords + bad memory - Was (Re: how to test disk for bad sector) Mike McClain <mike.junk.46@att.net> - 2020-09-02 01:10 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) Ben Caradoc-Davies <ben@transient.nz> - 2020-09-02 01:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) <tomas@tuxteam.de> - 2020-09-02 09:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad sector) rhkramer@gmail.com - 2020-09-02 15:30 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) <tomas@tuxteam.de> - 2020-09-02 15:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad sector) John Hasler <jhasler@newsguy.com> - 2020-09-02 18:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) Brian <ad44@cityscape.co.uk> - 2020-09-02 22:00 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) <tomas@tuxteam.de> - 2020-09-02 22:10 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad sector) John Hasler <jhasler@newsguy.com> - 2020-09-03 01:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) Brian <ad44@cityscape.co.uk> - 2020-09-03 12:40 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad sector) rhkramer@gmail.com - 2020-09-02 01:50 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) Tom Dial <tddial@comcast.net> - 2020-09-02 09:00 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad  sector) Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-02 11:20 +0200
                Re: passwords + bad memory - Was (Re: how to test disk for bad sector) rhkramer@gmail.com - 2020-09-02 15:30 +0200
      Re: how to test disk for bad sector Michael Stone <mstone@debian.org> - 2020-08-31 20:40 +0200
  Re: how to test disk for bad sector David <bouncingcats@gmail.com> - 2020-08-29 05:50 +0200
    Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 06:50 +0200
  Re: how to test disk for bad sector "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-08-29 10:20 +0200
    Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 13:20 +0200
      Re: how to test disk for bad sector Kenneth Parker <sea7kenp@gmail.com> - 2020-08-29 13:50 +0200
      Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-29 14:30 +0200
        Re: how to test disk for bad sector Marco Möller <talby@debianlists.mobilxpress.net> - 2020-08-29 18:50 +0200
          Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-30 00:20 +0200
            Re: how to test disk for bad sector Marco Möller <talby@debianlists.mobilxpress.net> - 2020-08-30 02:40 +0200
              Re: how to test disk for bad sector Gene Heskett <gheskett@shentel.net> - 2020-08-30 03:10 +0200
                Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-30 04:10 +0200
                Re: how to test disk for bad sector Gene Heskett <gheskett@shentel.net> - 2020-08-30 05:10 +0200
                Re: how to test disk for bad sector <tomas@tuxteam.de> - 2020-08-30 09:30 +0200
                Re: how to test disk for bad sector Marco Möller <talby@debianlists.mobilxpress.net> - 2020-08-30 21:00 +0200
                Re: how to test disk for bad sector Long Wind <longwind2@yahoo.com> - 2020-08-31 00:00 +0200
                Re: how to test disk for bad sector Andrei POPESCU <andreimpopescu@gmail.com> - 2020-09-02 11:30 +0200
              Re: how to test disk for bad sector Keith Bainbridge <keithrbaugroups@gmail.com> - 2020-08-30 06:00 +0200
    Re: how to test disk for bad sector Marco Möller <talby@debianlists.mobilxpress.net> - 2020-08-29 15:00 +0200

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