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Re: Buster to Bullseye upgrade problem

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On Fri 20 Aug 2021 at 14:13:55 (+0100), Gareth Evans wrote:
> On Fri 20 Aug 2021, at 04:45, David Wright <deblis@lionunicorn.co.uk> wrote:
> > On Thu 19 Aug 2021 at 07:42:56 (+0100), Gareth Evans wrote:

> $ apt policy pitivi
> pitivi:
>   Installed: 0.999-1+b1
>   Candidate: 0.999-1+b1
>   Version table:
>  *** 0.999-1+b1 500
>         500 http://deb.debian.org/debian buster/main amd64 Packages
>         100 /var/lib/dpkg/status
> 
> So pitivi 0.999 as installed is a Buster package, and gir* is installed during the upgrade as a dependency of Bullseye's newer pitivi version.
> 
> [Bullseye] 
> $ aptitude why gir1.2-gst-plugins-bad-1.0
> i   pitivi Depends gir1.2-gst-plugins-bad-1.0 (>= 1.18.0)
> 
> 
> The first upgrade interruption issue (repeated here for clarity):
> 
> --
> Unpacking gir1.2-gst-plugins-bad-1.0:amd64 (1.18.4-3) ...
> dpkg: error processing archive /tmp/apt-dpkg-install-YeCJ7K/28-gir1.2-gst-plugins-bad-1.0_1.18.4-3_amd64.deb (--unpack):
>  trying to overwrite '/usr/lib/x86_64-linux-gnu/girepository-1.0/GstTranscoder-1.0.typelib', which is also in package pitivi 0.999-1+b1
> dpkg-deb: error: paste subprocess was killed by signal (Broken pipe)
> --
> 
> appears to be a file conflict, per 
> 
> https://www.debian.org/releases/stable/amd64/release-notes/ch-upgrading.en.html#file-conflicts
> 
> which includes that "File conflicts should not occur if you upgrade from a “pure” buster system..."
> 
> So I would like to know if apt is not handling this properly, or if the scenario of a file changing packages (see David's previous email) is an expected exception to the (sort of) rule.

As Sven posted, it looks as if #965007 is the cause. A snag is
that, because the bug has been closed, it no longer shows up on
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=965007
Moral: for major upgrades, always set "Archived and Unarchived"
on https://www.debian.org/Bugs/ because these sorts of bug are
likely to have been fixed by the time unstable→stable arrives.

But the workaround is to recall reading (!) § 4.5.4 in the Release
Notes, and force things as shown there.

> There is also no explanation in term.log, syslog or dpkg.log for the second interruption:
> 
> --
> Processing triggers for libapache2-mod-php7.4 (7.4.21-1+deb11u1) ...
> [upgrade interrupted...]
> W: APT had planned for dpkg to do more than it reported back (5014 vs 5047).
>    Affected packages: texlive-fonts-recommended:amd64 texlive-lang-greek:amd64 texlive-latex-base:amd64 texlive-latex-extra:amd64 texlive-latex-recommended:amd64 texlive-pictures:amd64 texlive-plain-generic:amd64 texlive-science:amd64
> ---
> 
> which occurs even if pitivi is removed before upgrading, and the warning doesn't appear in term.log either.
> 
> If anyone can shed further light, I would be interested, but it's not ultimately a roadblock to upgrading so possibly not worth worrying about.

I'm no help here, as I've never seen output like that,
neither the "[ … ]", nor the "W: APT had planned …".
Is that output, with [upgrade interrupted...], a verbatim
copy/paste? Did this message appear spontaneously, or
because you yourself interrupted the process?

ISTR that history.log records intent, not achievement, whereas
term.log can obviously /only/ log achievement, so a comparison
of their two lists of packages for the interrupted step might give
a clue, perhaps a more fruitful one than just the list of Affected
packages quoted above.

Cheers,
David.

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Thread

Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-18 01:50 +0200
  Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-18 17:20 +0200
    Re: Buster to Bullseye upgrade problem piorunz <piorunz@gmx.com> - 2021-08-19 00:40 +0200
      Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-19 05:10 +0200
        Re: Buster to Bullseye upgrade problem David Wright <deblis@lionunicorn.co.uk> - 2021-08-19 07:00 +0200
          Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-19 08:50 +0200
            Re: Buster to Bullseye upgrade problem David Wright <deblis@lionunicorn.co.uk> - 2021-08-20 05:50 +0200
              Re: Buster to Bullseye upgrade problem Greg Wooledge <greg@wooledge.org> - 2021-08-20 13:40 +0200
                Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-20 14:40 +0200
              Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-20 15:20 +0200
                Re: Buster to Bullseye upgrade problem Sven Hartge <sven@svenhartge.de> - 2021-08-21 14:50 +0200
                Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-21 18:00 +0200
                Re: Buster to Bullseye upgrade problem David Wright <deblis@lionunicorn.co.uk> - 2021-08-22 06:40 +0200
                Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-22 14:20 +0200
                Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-22 14:30 +0200
                Re: Buster to Bullseye upgrade problem David Wright <deblis@lionunicorn.co.uk> - 2021-08-22 16:40 +0200
                Re: Buster to Bullseye upgrade problem "Gareth Evans" <donotspam@fastmail.fm> - 2021-08-23 09:30 +0200

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