I can't update&upgrade anymore @ UM 18.04 v2 LTS.
Update-Manager don't open.
I do in Terminal:
/usr/bin/update-manager
Output:
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
Segmentation fault
DEBUG_UPDATE_MANAGER=1 do-release-upgrade -c
Output:
Checking for a new Ubuntu release
MetaRelease.__init__() useDevel=False useProposed=False
/etc/update-manager/meta-release: https://changelogs.ubuntu.com/meta-release
/etc/update-manager/meta-release: https://changelogs.ubuntu.com/meta-release-lts
/etc/update-manager/meta-release: -development
/etc/update-manager/meta-release: -proposed
metarelease-uri: https://changelogs.ubuntu.com/meta-release-lts
MetaRelease.download()
result of meta-release download: '<urlopen error unknown url type: https>'
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
NO self.metarelease_information
There is no development version of an LTS available.
To upgrade to the latest non-LTS develoment release
Segmentation fault
How can I fix?
"result of meta-release download: ''"
I don't use a proxy.