Thanks. I've tested upgrading from focal to groovy: `ubuntu-release-upgrader-core/focal-proposed 1:20.04.25 all [upgradable from: 1:20.04.24]`
```patricia@f-g:~$ dpkg -l |grep ubuntu-release ii ubuntu-release-upgrader-core 1:20.04.25 all manage release upgrades ``` Now, I don't see the same issue anymore even if I press `R` to resurrect the screen session before it closes automatically `[screen is terminating]`. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1888916 Title: release upgrader can restore sources.list file from a previous release upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1888916/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
