Given the failure to connect to the snap store, and this error from VarLogDistupgradeMainlog.txt:
2022-05-02 16:20:15,425 DEBUG verifySourcesListEntry: deb-src http://archive.ubuntu.com/ubuntu jammy main restricted #Added by software-properties 2022-05-02 16:20:15,425 DEBUG url_downloadable: http://archive.ubuntu.com/ubuntu/dists/jammy/Release 2022-05-02 16:20:15,425 DEBUG s='http' n='archive.ubuntu.com' p='/ubuntu/dists/jammy/Release' q='' f='' 2022-05-02 16:20:15,442 DEBUG error from httplib: '[Errno 104] Connection reset by peer' it appears you were experiencing (probably temporary) network issues. Please try the upgrade again if you have not already done so. ** Changed in: ubuntu-release-upgrader (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971203 Title: Trying to upgrade from 20.04 lts to 22.04 lts but kept getting error messages in terminal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1971203/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs