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Re: Distinguishing between hardware, software, and operator induced symptoms

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On 11/18/2016 1:58 PM, Pascal Hambourg wrote:
> Le 18/11/2016 à 15:25, Richard Owlett a écrit :
>> As noted in the "Invoking ddrescue" thread
>> [https://lists.debian.org/debian-user/2016/11/msg00641.html],
>> my laptop
>> [dedicated to educational/experimental projects which could fail
>> spectacularly] used to apparently successfully run ddrescue,
>> malfunctioned.
>
> The most important tool is a brain with knowledge of the history.
> Exemple :
>
> Q. Did the operator change anything to the system before it failed ?
>
> A. Yes. He created a permanent automatic mount entry in fstab for
> a removable device which is not always present. BIG mistake. At
> least when you do that, add the "nofail" option and use an
> identifier which is less volatile than the device file.
>
> Solution : revert the change. No need to reinstall.

If could've, would've <smile>
When I noticed that systemd was having problems with the 
destination disk I discovered the wall wart was unplugged.
If my _only_ problem was the fstab entry, shouldn't my sequence of:
   1. power down laptop
   2. plug in wall wart
   3. power up laptop to reboot
have worked?

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Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-18 15:30 +0100
  Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-18 15:50 +0100
    Re: Distinguishing between hardware, software, and operator induced symptoms Cindy-Sue Causey <butterflybytes@gmail.com> - 2016-11-18 16:10 +0100
      Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-18 17:30 +0100
  Re: Distinguishing between hardware, software, and operator induced symptoms "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-18 16:30 +0100
    Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-18 17:20 +0100
  Re: Distinguishing between hardware, software, and operator induced  symptoms Bob Weber <bobrweber@gmail.com> - 2016-11-18 16:30 +0100
    Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-18 17:10 +0100
  Re: Distinguishing between hardware, software, and operator induced  symptoms Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-18 21:00 +0100
    Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-19 12:10 +0100
      Re: Distinguishing between hardware, software, and operator induced  symptoms Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-19 13:30 +0100
  Re: Distinguishing between hardware, software, and operator induced  symptoms David Christensen <dpchrist@holgerdanske.com> - 2016-11-19 04:30 +0100
    Re: Distinguishing between hardware, software, and operator induced  symptoms Richard Owlett <rowlett@cloud85.net> - 2016-11-19 12:10 +0100

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