Armbian for the Pinebook Pro [WIP]

[Surehand53]

Would you mind to describe briefly how to upgrade with Armbian Ubuntu.
I have no experience with Armbian and experimented a bit with not so much success and don't want to break the system.

Just edited /etc/apt/sources.list and replaced "bionic" with "focal" and then run: "sudo apt update" and "sudo apt dist-upgrade" and it is, like in regular Ubuntu.

Hmm. When I do that I get this error message with sudo apt update:

Code:

Traceback (most recent call last):
 File "/usr/lib/cnf-update-db", line 26, in <module>
   col.create(db)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 93, in create
   self._fill_commands(con)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 127, in _fill_commands
   self._parse_single_commands_file(con, fp)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file
   suite=tagf.section["suite"]
KeyError: 'suite'
Error in sys.excepthook:
Traceback (most recent call last):
 File "/usr/lib/python3/dist-packages/apport_python_hook.py", line 145, in apport_excepthook
   os.O_WRONLY | os.O_CREAT | os.O_EXCL, 0o640), 'wb') as f:
FileNotFoundError: [Errno 2] No such file or directory: '/var/crash/_usr_lib_cnf-update-db.0.crash'

Original exception was:
Traceback (most recent call last):
 File "/usr/lib/cnf-update-db", line 26, in <module>
   col.create(db)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 93, in create
   self._fill_commands(con)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 127, in _fill_commands
   self._parse_single_commands_file(con, fp)
 File "/usr/lib/python3/dist-packages/CommandNotFound/db/creator.py", line 165, in _parse_single_commands_file
   suite=tagf.section["suite"]
KeyError: 'suite'
Reading package lists... Done
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code

Something with Python it seems.
This is basically a fresh install, nothing changed really.

Any idea?