Re: Debian 8 and Debian 9 Dual Boot

From	Dan Norton <dnorton@mindspring.com>
Newsgroups	linux.debian.user
Subject	Re: Debian 8 and Debian 9 Dual Boot
Date	2017-11-13 21:10 +0100
Message-ID	<uLtdo-27t-13@gated-at.bofh.it> (permalink)
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On 11/13/2017 02:08 PM, Felix Miata wrote:
> Dan Norton composed on 2017-11-13 10:26 (UTC-0500):
>
>> David Christensen wrote:
>>> Dan Norton wrote:
>>>> My first Linux install was about one year ago. After some missteps, I
>>>> have used Debian 8 in reasonable satisfaction on the desktop during
>>>> that year. Now I want to leave 8 in place and do a network install
>>>> for Debian 9 on the same disk and switch back and forth at boot time.
>>> I think your best bet is to migrate from Debian 8 to Debian 9:
>>> 1.  Image, backup, and/or archive everything.  You will especially
>>> want to get a copy of the /etc tree onto a USB flash drive so you can
>>> see LVM, fstab, etc., configuration settings for mounting the Debian 8
>>> disk under Debian 9.
>> Please say more about the configuration settings.
> All my machines are multiboot. Few have as few as 4 operating system
> installations, most have more than 12, and most of those not running RAID use
> only one disk.

Excellent. You have my undivided attention :-)
>
> There's no need for separate home file systems to keep one installation from
> causing corruption to another's user settings. Simply do not reuse UIDs[1].
>
> On your first, your Jessie probably has a user dan with UID 1000. On the next,
> don't use 1000 for user dan. Pick any other number, e.g. 1200 for user dan in
> Stretch. During Stretch installation make the initial user dan8 or dan01 using
> Jessie's UID (probably 1000) for dan.
>
> In Jessie, create a new user dan2 or dan09 using the UID you picked for Stretch.

Interesting.

>
> Booted to either, the homedir of the other can optionally be bind mounted as a
> subdir of the current dan for more convenient data access without interference
> with settings of the other. Either way you boot, you'll be user "dan", but
> without risk of settings corruption.
> [1] https://en.wikipedia.org/wiki/User_identifier

I'm going to study this and I may have questions later.

Thanks, Felix

  - Dan

Thread

Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 04:50 +0100
  Re: Debian 8 and Debian 9 Dual Boot David Christensen <dpchrist@holgerdanske.com> - 2017-11-13 07:20 +0100
    Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 16:30 +0100
      Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-13 20:10 +0100
        Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 21:10 +0100
        Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-14 00:10 +0100
          Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-14 01:50 +0100
            Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-14 03:40 +0100
              Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-14 04:00 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-14 04:50 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-16 19:40 +0100
                Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-16 20:10 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-16 23:40 +0100
                Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-16 20:30 +0100
                Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-16 21:20 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 19:10 +0100
                Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-29 19:20 +0100
                Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-29 19:50 +0100
                Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-29 19:40 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 21:40 +0100
                Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-29 22:00 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 22:40 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-30 03:20 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 22:10 +0100
                Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-29 23:10 +0100
                Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-17 00:00 +0100
              Re: Debian 8 and Debian 9 Dual Boot Jonathan Dowland <jmtd@debian.org> - 2017-11-29 10:10 +0100
      Re: Debian 8 and Debian 9 Dual Boot David Christensen <dpchrist@holgerdanske.com> - 2017-11-13 20:20 +0100
        Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-14 00:30 +0100
          Re: Debian 8 and Debian 9 Dual Boot David Christensen <dpchrist@holgerdanske.com> - 2017-11-14 00:40 +0100
  Re: Debian 8 and Debian 9 Dual Boot Jochen Spieker <ml@well-adjusted.de> - 2017-11-13 10:00 +0100
    Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 17:00 +0100
      Re: Debian 8 and Debian 9 Dual Boot Jochen Spieker <ml@well-adjusted.de> - 2017-11-13 21:30 +0100
  Re: Debian 8 and Debian 9 Dual Boot Roberto C. Sánchez <roberto@debian.org> - 2017-11-13 13:00 +0100
    Re: Debian 8 and Debian 9 Dual Boot Roberto C. Sánchez <roberto@debian.org> - 2017-11-13 17:10 +0100
      Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 18:10 +0100
    Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-13 17:10 +0100
      Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-13 20:00 +0100
        Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 04:20 +0100
          Re: Debian 8 and Debian 9 Dual Boot Michael Fothergill <michael.fothergill@gmail.com> - 2017-11-29 08:10 +0100
          Re: Debian 8 and Debian 9 Dual Boot Joe <joe@jretrading.com> - 2017-11-29 10:10 +0100
            Re: Debian 8 and Debian 9 Dual Boot Dan Norton <dnorton@mindspring.com> - 2017-11-29 19:00 +0100
          Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-29 20:00 +0100
            Re: Debian 8 and Debian 9 Dual Boot Felix Miata <mrmazda@earthlink.net> - 2017-11-29 20:40 +0100

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