@vorlon it is in the graphic which shows up in the GUI surrounding the checkbox to enable -proposed here: https://wiki.ubuntu.com/Testing/EnableProposed?action=AttachFile&do=get&target=devoptions_1604.png
Thank you @knox for the clarification. This was largely my fault for doing a 's/focal/groovy/g' in my sources.list. I can't speak to whether the GUI source selection interface allows one to add -proposed to the primary sources.list when the devel series is running though. Is there a way to tell apt that packages which have a dependency upon libffi7 should absolutely not be mixed with packages which depend upon libffi8 because there is a breaking change? (I imagine there is no automated way to notice that hey data structures have changed between library versions.) And for the benefit of users in the future who accidentally hit this sort of issue, can anyone recommend a best practices way to downgrade all packages which are for instance built against libffi8ubuntu1? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1892915 Title: gnome-shell crashing (libffi8ubuntu1 upgrade issue) Status in gnome-shell package in Ubuntu: Incomplete Status in libffi package in Ubuntu: Incomplete Bug description: Seeing this on groovy installs after an update. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: gnome-shell 3.36.4-1ubuntu2~build1 Uname: Linux 5.8.3-050803-generic x86_64 ApportVersion: 2.20.11-0ubuntu44 Architecture: amd64 CasperMD5CheckResult: skip Date: Tue Aug 25 15:49:17 2020 DisplayManager: gdm3 InstallationDate: Installed on 2019-10-19 (311 days ago) InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 3.36.4-1ubuntu2 ShellJournal: -- Logs begin at Tue 2020-06-16 11:50:01 EDT, end at Tue 2020-08-25 15:49:37 EDT. -- -- No entries -- SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.default.apport: [modified] mtime.conffile..etc.default.apport: 2020-08-10T16:14:34.416087 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1892915/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
