$ DEBUG_UPDATE_MANAGER=1 do-release-upgrade -c
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 [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:847)>'
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
set Prompt=normal in /etc/update-manager/release-upgrades.
Here ya go:
$ DEBUG_UPDATE_ MANAGER= 1 do-release-upgrade -c __init_ _() useDevel=False useProposed=False manager/ meta-release: https:/ /changelogs. ubuntu. com/meta- release manager/ meta-release: https:/ /changelogs. ubuntu. com/meta- release- lts manager/ meta-release: -development manager/ meta-release: -proposed /changelogs. ubuntu. com/meta- release- lts download( ) VERIFY_ FAILED] certificate verify failed (_ssl.c:847)>' /changelogs. ubuntu. com/meta- release- lts. Check your Internet connection or proxy settings e_information manager/ release- upgrades.
Checking for a new Ubuntu release
MetaRelease.
/etc/update-
/etc/update-
/etc/update-
/etc/update-
metarelease-uri: https:/
MetaRelease.
result of meta-release download: '<urlopen error [SSL: CERTIFICATE_
Failed to connect to https:/
NO self.metareleas
There is no development version of an LTS available.
To upgrade to the latest non-LTS develoment release
set Prompt=normal in /etc/update-