So I followed the Digital Ocean steps and after running this:
sudo do-release-upgrade
It failed again with:
`Broken landscape-common:amd64 Depends on python3-twisted [ amd64 ] < none -> 17.9.0-2ubuntu0.1 > ( python )
Considering python3-twisted:amd64 1 as a solution to landscape-common:amd64 9999
Reinst Failed because of python3-zope.interface:amd64
MarkKeep python3-twisted [ amd64 ] < none -> 17.9.0-2ubuntu0.1 > ( python ) FU=0
Considering python3-twisted:amd64 1 as a solution to landscape-common:amd64 9999
Done
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-a7x268x1/bionic", line 8, in <module>
sys.exit(main())
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeMain.py", line 238, in main
if app.run():
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 2072, in run
return self.fullUpgrade()
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1981, in fullUpgrade
if not self.askDistUpgrade():
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1153, in askDistUpgrade
changes = self.calcDistUpgrade()
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1120, in calcDistUpgrade
if not self.cache.installTasks(self.tasks):
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeCache.py", line 856, in installTasks
pkg.mark_install()
File "/usr/lib/python3/dist-packages/apt/package.py", line 1356, in mark_install
fixer.resolve(True)
SystemError: E:Unable to correct problems, you have held broken packages.
Error in sys.excepthook:
Traceback (most recent call last):
File "/usr/lib/python3/dist-packages/problem_report.py", line 497, in add_to_existing
self.write(f)
File "/usr/lib/python3/dist-packages/problem_report.py", line 450, in write
block = f.read(1048576)
File "/usr/lib/python3.5/codecs.py", line 321, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0x8b in position 1: invalid start byte
Original exception was:
Traceback (most recent call last):
File "/tmp/ubuntu-release-upgrader-a7x268x1/bionic", line 8, in <module>
sys.exit(main())
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeMain.py", line 238, in main
if app.run():
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 2072, in run
return self.fullUpgrade()
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1981, in fullUpgrade
if not self.askDistUpgrade():
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1153, in askDistUpgrade
changes = self.calcDistUpgrade()
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeController.py", line 1120, in calcDistUpgrade
if not self.cache.installTasks(self.tasks):
File "/tmp/ubuntu-release-upgrader-a7x268x1/DistUpgrade/DistUpgradeCache.py", line 856, in installTasks
pkg.mark_install()
File "/usr/lib/python3/dist-packages/apt/package.py", line 1356, in mark_install
fixer.resolve(True)
SystemError: E:Unable to correct problems, you have held broken packages.
=== Command detached from window (Wed Oct 28 00:45:53 2020) ===
=== Command terminated with exit status 1 (Wed Oct 28 00:46:03 2020) ===`