Comment 6 for bug 1652147

Revision history for this message
Brian Murray (brian-murray) wrote :

ubuntu-release-upgrade should disable -proposed to prevent situations like this. Please include your the file /var/log/dist-upgrade/main.log which should contain information about your upgrade from 14.04 to 16.04.

DistUpgradeController.py contains the following code:

 653 # Disable proposed on upgrade to a development release.
 654 if (not entry.disabled and self.options
 655 and self.options.devel_release == True and
 656 "%s-proposed" % self.fromDist in entry.dist):
 657 logging.debug("upgrade to development release, disabling proposed")
 658 entry.dist = "%s-proposed" % self.toDist
 659 entry.comment += _("Not for humans during development stage of release %s") % self.toDist
 660 entry.disabled = True
 661 continue

So you'd also see the above comment in /etc/apt/sources.list.