You may be experiencing this one https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/2067071 take a look at /var/log/dist-upgrade/apt.log and see if the crash matches the bug above, that's what's happening to me
You may be experiencing this one /bugs.launchpad .net/ubuntu/ +source/ ubuntu- release- upgrader/ +bug/2067071 dist-upgrade/ apt.log and see if the crash matches the bug above, that's what's happening to me
https:/
take a look at /var/log/