Comment 17 for bug 848915

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Colin Watson (cjwatson) wrote : Re: Partial upgrade results in cryptic traceback because $DISPLAY is not set

My observations so far:

 * Even with a hacked-up update-manager that always enters partial upgrade mode, I can't currently reproduce this bug, either directly or via update-notifier.
 * I think partial upgrade mode is a red herring anyway. Of this bug and its 16 duplicates, only two show "--dist-upgrade" in PythonArgs. Two have "--no-focus-on-map" (indicating a launch by update-notifier). Two have no arguments at all, and the others have "-d", suggesting launch from a menu/dash/launcher/terminal/whatever.
 * Only one of these bugs is from the final oneiric version of update-manager or newer, and there appears to be no bug pattern that might have prevented further reports.
 * All but three of these bugs are from systems recently upgraded from natty to oneiric, and two of the remainder from oneiric beta to oneiric.
 * Of the eight bugs with full update-manager logs attached, all eight have unity and unity-2d installed (though I can't really tell what desktop environment they're actually running), and seven have ubuntu-desktop installed. One has kde-window-manager installed, although not kubuntu-desktop. One has edubuntu-desktop installed.
 * I'm trying a natty install to see if I can reproduce this on upgrade from that.

My feeling so far is that this was probably a bug in some bit of desktop infrastructure which has since been fixed, and I expect to remove the rls-p-tracking tag if further reproduction attempts fail, due to the paucity of recent reports.