Upgrade Ubuntu fails

Any Idea?
I try to upgrade #Ubun­tu on an #Odroid N2 from 18.04 to 20.04.
It fails (snip­pet from /var/log/dist-upgrade/main.log:

2020-07-10 09:11:15,779 DEBUG Marking 'ubuntu-mate-core' for upgrade
2020-07-10 09:11:16,540 WARNING Can't mark 'ubuntu-mate-core' for upgrade (E:Unable to correct problems, you have held broken packages.)
2020-07-10 09:11:18,464 ERROR Dist-upgrade failed: 'Broken packages after upgrade: ubuntu-mate-core'

But:

root@ulu:~# apt-mark showhold
root@ulu:~#

I’m stuck 🙁

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2 Comments

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  1. Was sagt denn:
    dpkg ‑l | grep ^h

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    1. root@ulu:~# dpkg ‑l | grep ^h
      dpkg: error: need an action option
      
      Type dpkg --help for help about installing and deinstalling packages [*];
      Use 'apt' or 'aptitude' for user-friendly package management;
      Type dpkg -Dhelp for a list of dpkg debug flag values;
      Type dpkg --force-help for a list of forcing options;
      Type dpkg-deb --help for help about manipulating *.deb files;
      
      Options marked [*] produce a lot of output - pipe it through 'less' or 'more' !
      root@ulu:~#
      

      😉

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