Public bug reported: While running the do-release-upgrade I faced the issue. The output from log is like: DEBUG quirks: running bionicPostInitialUpdate DEBUG running Quirks.bionicPostInitialUpdate DEBUG abort called
After some troubleshooting I found that it was failing on calling 'snap debug connectivity'. Snap version I had was a bit old, which caused it to fail with panic on slice out of range. Because of the actual error was not logged, it was unable to found the issue without code debugging. It would be awesome if you can put more logs into _checkStoreConnectivity function and log stderr and stdout output from popen.communicate before calling self.controller.abort() Also it would be extremely useful to log traceback from abort. Can simplify the troubleshooting dramatically. Thanks. ** Affects: ubuntu-release-upgrader (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1810565 Title: Ubuntu 16.04 to Ubuntu18.04 upgrade fails on snap debug connectivity without logging any useful logs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1810565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs