Re: Problem attempting to use xorriso

From	Richard Owlett <rowlett@cloud85.net>
Newsgroups	linux.debian.user
Subject	Re: Problem attempting to use xorriso
Date	2016-11-10 15:30 +0100
Message-ID	<sBYwy-7ok-21@gated-at.bofh.it> (permalink)
References	(3 earlier) <sBKjT-5IP-11@gated-at.bofh.it> <sBVfk-4HF-21@gated-at.bofh.it> <sBVIm-5u5-9@gated-at.bofh.it> <sBXTP-6QD-11@gated-at.bofh.it> <sBY3v-6TP-1@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 11/10/2016 7:58 AM, tomas@tuxteam.de wrote:
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> On Thu, Nov 10, 2016 at 07:40:06AM -0600, Richard Owlett wrote:
>> On 11/10/2016 5:20 AM, tomas@tuxteam.de wrote:
>>> -----BEGIN PGP SIGNED MESSAGE-----
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>>> On Thu, Nov 10, 2016 at 04:53:47AM -0600, Richard Owlett wrote:
>>>> On 11/9/2016 5:16 PM, Lisi Reisz wrote:
>>>>> On Sunday 06 November 2016 16:47:00 Richard Owlett wrote:
>>>>>> [snip]
>>>>>> Based on responses to previous posts titled "Trivial script will
>>>>>> NOT execute" and "Permissions for an entire PARTITION" I have
>>>>>> multiple problems understanding Linux file systems generally.
>>>>>
>>>>> I imagine you have seen this lot - especially the top three??
>>>>> https://www.google.co.uk/search?q=basic+debian+file+system&oq=basic+debian+file+system&aqs=chrome..69i57.7617j0j7&sourceid=chrome&ie=UTF-8
>>>>>
>>>>> Lisi
>>>>
>>>> Yes, but not in the context of a sub-project from last few days.
>>>> I suspect what I aiming at might look like - the groups and
>>>> permission bits set at time partition created, thus avoiding games
>>>> with /etc/fstab .
>>>>
>>>> richard@jessie-defaults:~$
>>>> richard@jessie-defaults:~$ ls -l /dev/sd*
>>>> brw-rw---- 1 root disk 8,  0 Nov 10 03:35 /dev/sda
>>>> brw-rw---- 1 root owl  8,  1 Nov 10 03:35 /dev/sda1
>>>> brw-rw-r-- 1 root owl  8,  2 Nov 10 03:35 /dev/sda2
>>>> brw-rw---- 1 root disk 8,  3 Nov 10 03:35 /dev/sda3
>>>> brw-rw---- 1 root disk 8,  5 Nov 10 03:35 /dev/sda5
>>>> brw-rw---- 1 root disk 8, 16 Nov 10 04:43 /dev/sdb
>>>> br--rw-r-- 1 root owl  8, 17 Nov 10 04:43 /dev/sdb1
>>>
>>> Note that with this setting, "you" can thrash whatever is in /dev/sda
>>> through /dev/sdb (write access).
>>
>> I don't understand.
>
> Hm. Too concise (both of us ;-)
>
> I'll give it a shot. By "you" I meant "user owl, i.e. any program running
> under that user". Was that the unclear part?

If not, it was likely related. "owl" was not intended to be a 
user ID, but a group ID.
That's why in my long winded response I changed "owl" to one of 
"proj1", "proj2", or "proj3" and clairified that I am user 
"richard" of group "richard".

Thread

Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-04 20:30 +0100
  Re: Problem attempting to use xorriso "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-04 21:10 +0100
    Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-06 17:50 +0100
      Re: Problem attempting to use xorriso "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-06 19:10 +0100
      Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-10 00:20 +0100
        Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-10 12:00 +0100
          Re: Problem attempting to use xorriso <tomas@tuxteam.de> - 2016-11-10 12:30 +0100
            Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-10 14:50 +0100
              Re: Problem attempting to use xorriso <tomas@tuxteam.de> - 2016-11-10 15:00 +0100
                Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-10 15:30 +0100
                Re: Problem attempting to use xorriso <tomas@tuxteam.de> - 2016-11-10 15:50 +0100
          Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-10 16:00 +0100
            Re: Problem attempting to use xorriso <tomas@tuxteam.de> - 2016-11-10 16:20 +0100
            Re: Problem attempting to use xorriso Greg Wooledge <wooledg@eeg.ccf.org> - 2016-11-10 16:50 +0100
              Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-10 18:00 +0100
              Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-11 00:10 +0100
            Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-11 00:00 +0100
              Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-11 03:20 +0100
              Re: Problem attempting to use xorriso Curt <curty@free.fr> - 2016-11-11 11:10 +0100
                Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-11 12:50 +0100
                Re: Problem attempting to use xorriso Gene Heskett <gheskett@shentel.net> - 2016-11-11 19:20 +0100
                Re: Problem attempting to use xorriso Curt <curty@free.fr> - 2016-11-12 11:20 +0100
                Re: Problem attempting to use xorriso "Thomas Schmitt" <scdbackup@gmx.net> - 2016-11-12 12:00 +0100
                Re: Problem attempting to use xorriso Gene Heskett <gheskett@shentel.net> - 2016-11-12 12:20 +0100
                Re: Problem attempting to use xorriso Lisi Reisz <lisi.reisz@gmail.com> - 2016-11-12 14:30 +0100
          Re: Problem attempting to use xorriso David Wright <deblis@lionunicorn.co.uk> - 2016-11-10 21:00 +0100
            Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-11 00:10 +0100
              Re: Problem attempting to use xorriso David Wright <deblis@lionunicorn.co.uk> - 2016-11-11 05:00 +0100
                Re: Problem attempting to use xorriso Richard Owlett <rowlett@cloud85.net> - 2016-11-11 09:10 +0100

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