The mirror of the Ubuntu archive which you use is not accessible. Please switch to an official mirror of the Ubuntu archive and try the upgrade again.
2020-06-25 18:01:45,990 DEBUG examining: 'deb http://repo.iitd.ernet.in/ubuntu bionic main restricted universe multiverse' 2020-06-25 18:01:45,993 DEBUG verifySourcesListEntry: deb http://repo.iitd.ernet.in/ubuntu focal main restricted universe multiverse 2020-06-25 18:01:45,993 DEBUG url_downloadable: http://repo.iitd.ernet.in/ubuntu/dists/focal/Release 2020-06-25 18:01:45,993 DEBUG s='http' n='repo.iitd.ernet.in' p='/ubuntu/dists/focal/Release' q='' f='' 2020-06-25 18:02:16,020 DEBUG error from httplib: '<urlopen error [Errno -2] Name or service not known>' 2020-06-25 18:02:16,020 DEBUG entry '# deb http://repo.iitd.ernet.in/ubuntu bionic main restricted universe multiverse' was disabled (no Release file) ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete ** Summary changed: - Siud sandbox + Unable to upgrade due to bad mirror -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1885083 Title: Unable to upgrade due to bad mirror To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1885083/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
