On 2017-06-15 22:31, Niels Thykier wrote: > Guillem and I have been talking about this over IRC and have a theory. > > Basically, jessie's verison of desktop-file-utils and shared-mime-info > have "-await" triggers (implicit) which will push other packages into a > "TRIGGER_PENDING" state. > Once they are in that state, the "damage" is done and those other > packages will no longer satisfy dependencies until the trigger has been > processed. Notably, dpkg is unable to /undo/ this state even if the > trigger changes from -await to -noawait during the upgrade.
I think this theory is wrong. (Unless dpkg keeps packages in trigger-pending state *after* a successful apt-get upgrade.) I tested earlier this week the following upgrade path in piuparts: Upgrade from jessie task-gnome-desktop with --install-recommends to stretch (but with desktop-file-utils and shared-mime-info switched to interest-noawait triggers in stretch). The first (apt-get upgrade) phase upgraded both of these packages as well as gnome-menues and finished with success. I assume there are no pending triggers left at this point, and the 3 interesting packages have noawait triggers. The second phase (apt-get dist-upgrade) still runs into the trigger cycle. Andreas
