Re: Progress report Re: Invoking ddrescue

From	Richard Owlett <rowlett@cloud85.net>
Newsgroups	linux.debian.user
Subject	Re: Progress report Re: Invoking ddrescue
Date	2016-11-14 22:20 +0100
Message-ID	<sDwPw-3SH-27@gated-at.bofh.it> (permalink)
References	(6 earlier) <sCM9X-6lD-5@gated-at.bofh.it> <sCNz3-7e3-13@gated-at.bofh.it> <sCTl8-2O0-23@gated-at.bofh.it> <sDuXn-2HY-13@gated-at.bofh.it> <sDw37-3m0-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 11/14/2016 2:27 PM, tomas@tuxteam.de wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On Mon, Nov 14, 2016 at 01:09:51PM -0600, Richard Owlett wrote:
>> There is light at the end of the tunnel which doesn't appear to be
>> an oncoming train ;/
>>
>> This is a manually created transcript of what I've done this morning.
>> I physically can *NOT* do a copy-n-paste of what's happening as it is
>> currently in progress on a separate _intentionally isolated_ laptop.
>>
>> My procedure has been to login "root" at the Jessie boot screen.
>> I did *NOT* login as "richard" followed by executing "su" in a
>> terminal.
>> There *appears* to be subtle differences -- more investigation
>> needed.
>
> There is. If you invoke just "su", you inherit (more or less) the
> (regular) user's environment, with some exceptions. If you invoke
> "su -" (or equivalently "su -l") you get a fresh environment for
> root, as if you had logged in as root directly.

My observed symptoms would seem to match.
I have a test case in mind that could verify that.
It will have to wait. I have a higher priority project thirsting 
for an available 300GB drive. It is the motivation for a lot of 
my recent posts ;/

>
> The gory details are in su's man page (a bit complicated by the
> fact that su can do more things, e.g. su'ing to another user instead
> of root, executing just one command as the new user, and so on).
>
> Jonathan commented on the other points much better than I could,
> so I'll stop here :-)
>
> regards
> - -- tomás

Thread

Re: dd - proper use or more suitable program Andy Smith <andy@strugglers.net> - 2016-11-11 18:00 +0100
  Re: dd - proper use or more suitable program Christian Seiler <christian@iwakd.de> - 2016-11-11 18:40 +0100
    Re: dd - proper use or more suitable program The Wanderer <wanderer@fastmail.fm> - 2016-11-11 19:20 +0100
      Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-11 22:40 +0100
        Re: dd - proper use or more suitable program Andy Smith <andy@strugglers.net> - 2016-11-12 05:50 +0100
          Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-12 09:20 +0100
  Re: dd - proper use or more suitable program Nicolas George <george@nsup.org> - 2016-11-11 19:00 +0100
    Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-11 22:40 +0100
      Re: dd - proper use or more suitable program Christian Seiler <christian@iwakd.de> - 2016-11-12 08:40 +0100
        Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-12 09:30 +0100
          Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-12 18:30 +0100
            Re: dd - proper use or more suitable program Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-12 19:30 +0100
              Re: dd - proper use or more suitable program Richard Owlett <rowlett@cloud85.net> - 2016-11-12 20:30 +0100
                Re: dd - proper use or more suitable program Ben Caradoc-Davies <ben@transient.nz> - 2016-11-12 21:00 +0100
                Re: dd - proper use or more suitable program Brian <ad44@cityscape.co.uk> - 2016-11-12 21:10 +0100
                Re: dd - proper use or more suitable program <tomas@tuxteam.de> - 2016-11-12 22:00 +0100
                Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-13 04:10 +0100
                Re: Invoking ddrescue "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-13 13:00 +0100
                Re: Invoking ddrescue <tomas@tuxteam.de> - 2016-11-13 13:10 +0100
                Re: Invoking ddrescue <tomas@tuxteam.de> - 2016-11-13 13:00 +0100
                Re: Invoking ddrescue "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-13 13:40 +0100
                Re: Invoking ddrescue Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-13 13:50 +0100
                Re: Invoking ddrescue Nicolas George <george@nsup.org> - 2016-11-13 14:00 +0100
                Re: Invoking ddrescue "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-13 14:40 +0100
                Re: Invoking ddrescue Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-13 15:10 +0100
                Re: Invoking ddrescue "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-13 16:10 +0100
                Re: Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-13 17:30 +0100
                Re: Invoking ddrescue Brian <ad44@cityscape.co.uk> - 2016-11-13 15:20 +0100
                Progress report Re: Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-14 20:20 +0100
                Re: Progress report Re: Invoking ddrescue Jonathan Dowland <jmtd@debian.org> - 2016-11-14 21:20 +0100
                Re: Progress report Re: Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-14 22:00 +0100
                Re: Progress report Re: Invoking ddrescue <tomas@tuxteam.de> - 2016-11-14 21:30 +0100
                Re: Progress report Re: Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-14 22:20 +0100
                Re: Progress report Re: Invoking ddrescue "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-14 21:30 +0100
                Re: Progress report Re: Invoking ddrescue Richard Owlett <rowlett@cloud85.net> - 2016-11-14 22:10 +0100
                Re: Progress report Re: Invoking ddrescue Pascal Hambourg <pascal@plouf.fr.eu.org> - 2016-11-17 20:20 +0100
                SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Richard Owlett <rowlett@cloud85.net> - 2016-11-14 23:40 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Brian <ad44@cityscape.co.uk> - 2016-11-15 00:30 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Richard Owlett <rowlett@cloud85.net> - 2016-11-15 04:00 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Brian <ad44@cityscape.co.uk> - 2016-11-15 21:00 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] <tomas@tuxteam.de> - 2016-11-15 22:00 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-15 12:50 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Brian <ad44@cityscape.co.uk> - 2016-11-15 13:30 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-15 13:50 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Richard Owlett <rowlett@cloud85.net> - 2016-11-15 13:50 +0100
                Re: SUC[C]ESS!!! - was [Re: Progress report Re: Invoking ddrescue] David Wright <deblis@lionunicorn.co.uk> - 2016-11-15 16:30 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-15 17:20 +0100
                Re: SUCESS!!! - was [Re: Progress report Re: Invoking ddrescue] Greg Wooledge <wooledg@eeg.ccf.org> - 2016-11-15 17:30 +0100

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