Problem:
If you are unable to update the UCS System via the WebGUI because you get an error message like in this picture:
And if you get this traceback in /var/log/univention/updater.log
Internal Server-Error in "updater/updates/check".
apt.cache.FetchFailedException
raise FetchFailedException()
File "/usr/lib/python3/dist-packages/apt/cache.py", line 591, in update
apt.update()
File "/usr/lib/python3/dist-packages/univention/management/console/modules/updater/__init__.py", line 305, in updates_check
File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 295, in _fake_func
return list(function(self, iterator, *nones))
File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 447, in _response
return function(self, request)
File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 186, in _response
result = _multi_response(self, request)
File "/usr/lib/python3/dist-packages/univention/management/console/modules/decorators.py", line 327, in _response
function.__func__(self, request, *args, **kwargs)
File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 254, in execute
raise value
File "/usr/lib/python3/dist-packages/six.py", line 693, in reraise
six.reraise(etype, exc, etraceback)
File "/usr/lib/python3/dist-packages/univention/management/console/base.py", line 351, in __error_handling
Traceback (most recent call last):
Request: updater/updates/check
Internal Server-Error in "updater/updates/check"
Because your system runs into this bug
https://forge.univention.org/bugzilla/show_bug.cgi?id=53689
Environment:
UCS 5.0-x
Solution:
Update your system via CLI with that command and possible as root or sudo:
univention-upgrade
May this article will be helpfully