Upgrade na Ubuntu 20.04 selže na balíčcích I386?

Nedávno jsem upgradoval z 16.04 na 18.04.4 LTS a nyní chci znovu upgradovat na 20.04 LTS pomocí

sudo do-release-upgrade -d

Proces selže s chybovou zprávou o ppas, ale soubory protokolu ukazují, že problém souvisí s konflikty standardu ubuntu a lsof. Zdá se, že nemůže vyřešit konflikt mezi lsof:amd a lsof:i386. Zkoušel jsem je odstranit a znovu nainstalovat, ale zatím nic nefungovalo.

Mohu něco udělat, nebo mám počkat a doufat, že to správci balíčků vyřeší?

Starting pkgProblemResolver with broken count: 1
Starting 2 pkgProblemResolver with broken count: 1
Investigating (0) ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib >
Broken ubuntu-standard:amd64 Depends on lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR >
  Considering lsof:amd64 0 as a solution to ubuntu-standard:amd64 2
  Added lsof:amd64 to the remove list
  Fixing ubuntu-standard:amd64 via keep of lsof:amd64
  MarkKeep lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR > FU=0
Investigating (0) lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugH Ib >
Broken lsof:amd64 Conflicts on lsof:i386 < none -> 4.93.2+dfsg-1 @un umN Ib >
  Considering lsof:i386 4 as a solution to lsof:amd64 0
  Re-Instated lsof:amd64
Investigating (1) lsof:i386 < none -> 4.93.2+dfsg-1 @un umN Ib >
Broken lsof:i386 Conflicts on lsof:amd64 < 4.89+dfsg-0.1 -> 4.93.2+dfsg-1 @ii ugU Ib >
  Considering lsof:amd64 0 as a solution to lsof:i386 4
  Added lsof:amd64 to the remove list
  Conflicts//Breaks against version 4.89+dfsg-0.1 for lsof but that is not InstVer, ignoring
  Fixing lsof:i386 via remove of lsof:amd64
  MarkDelete lsof:amd64 < 4.89+dfsg-0.1 -> 4.93.2+dfsg-1 @ii ugU Ib > FU=0
Investigating (1) ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib >
Broken ubuntu-standard:amd64 Depends on lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR >
  Considering lsof:amd64 0 as a solution to ubuntu-standard:amd64 2
  Added lsof:amd64 to the remove list
  Fixing ubuntu-standard:amd64 via keep of lsof:amd64
  MarkKeep lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR > FU=0
Investigating (1) lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugH Ib >
Broken lsof:amd64 Conflicts on lsof:i386 < none -> 4.93.2+dfsg-1 @un umN Ib >
  Considering lsof:i386 4 as a solution to lsof:amd64 0
  Removing lsof:amd64 rather than change lsof:i386
  MarkDelete lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugH Ib > FU=0
Investigating (2) ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib >
Broken ubuntu-standard:amd64 Depends on lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR >
  Considering lsof:amd64 0 as a solution to ubuntu-standard:amd64 2
  Added lsof:amd64 to the remove list
  Fixing ubuntu-standard:amd64 via keep of lsof:amd64
  MarkKeep lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR > FU=0
Investigating (2) lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugH Ib >
Broken lsof:amd64 Conflicts on lsof:i386 < none -> 4.93.2+dfsg-1 @un umN Ib >
  Considering lsof:i386 4 as a solution to lsof:amd64 2
  Removing lsof:amd64 rather than change lsof:i386
  MarkDelete lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugH Ib > FU=0
Investigating (3) ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib >
Broken ubuntu-standard:amd64 Depends on lsof:amd64 < 4.89+dfsg-0.1 | 4.93.2+dfsg-1 @ii ugR >
  Considering lsof:amd64 4 as a solution to ubuntu-standard:amd64 2
  MarkKeep ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib > FU=0
    Reinst Failed because of lsof:amd64
  MarkKeep ubuntu-standard:amd64 < 1.417.4 -> 1.450.1 @ii umU Ib > FU=0
  Removing ubuntu-standard:amd64 rather than change lsof:amd64

...

DEBUG The package 'ubuntu-standard' is marked for removal but it's in the removal blacklist
ERROR Dist-upgrade failed: 'The package 'ubuntu-standard' is marked for removal but it is in the removal blacklist.'

EDIT:jak je požadováno, zde je výstup apt-cache policy ubuntu-standard lsof lsof:i386

ubuntu-standard:
  Installed: 1.417.4
  Candidate: 1.417.4
  Version table:
 *** 1.417.4 500
        500 http://ca.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1.417 500
        500 http://ca.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
lsof:
  Installed: 4.89+dfsg-0.1
  Candidate: 4.89+dfsg-0.1
  Version table:
 *** 4.89+dfsg-0.1 500
        500 http://ca.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status
lsof:i386:
  Installed: (none)
  Candidate: 4.89+dfsg-0.1
  Version table:
     4.89+dfsg-0.1 500
        500 http://ca.archive.ubuntu.com/ubuntu bionic/main i386 Packages

Zkoušel jsem také upgradovat na 19.10 jako mezikrok, ale stejný problém to blokuje.

Související:Jak bezpečný je Ubuntu Tweak’s Janitor?

Přijatá odpověď:

S určitou pomocí od N0rberta jsem zjistil, že problém s mým upgradem byly staré balíčky i386 vedle mé instalace amd64. Vyzkoušel jsem několik způsobů, jak odstranit tuto architekturu, jak bylo navrženo hledáním na internetu. Všichni selhali s problémy se závislostmi, dokud jsem nenarazil na tuto odpověď od PythoNic. Jeho návrh, že aptitude je lepší než apt-get, byl také správný. apt-get selhal také kvůli problémům se závislostmi.

# install aptitude if you don't already have it
sudo apt-get install aptitude

# get rid of all the :i386 versions of packages
# apt-get failed on this, but aptitude suggested a way to do it
sudo aptitude purge `dpkg --get-selections | grep ":i386" | awk '{print $1}'`

# stick with amd64 architecture
dpkg --remove-architecture i386

Upgrade na 20.04 právě běží.