[Bug 922485] Re: Lucid Desktop i386 failed to calculate the upgrade to Precise
Colin Watson
cjwatson at canonical.com
Sat Jan 28 01:50:09 UTC 2012
I believe this is an apt bug. The resolver is working on xserver-xorg-
core Breaks: xserver-xorg-video-6, and runs over its loop limit before
it manages to finish. This is because it's spending one iteration of
the master resolver loop per provider of xserver-xorg-video-6, when it
could clear them all up in a single iteration. I believe that this is
an anomaly in apt's handling of Breaks vs. Conflicts, as Conflicts do
appear to cause it to try multiple providers in a single iteration of
the master resolver loop.
I'm working on a patch for this now.
** Package changed: update-manager (Ubuntu) => apt (Ubuntu)
** Changed in: apt (Ubuntu)
Importance: Undecided => High
** Changed in: apt (Ubuntu)
Status: New => Triaged
** Changed in: apt (Ubuntu)
Assignee: (unassigned) => Colin Watson (cjwatson)
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https://bugs.launchpad.net/bugs/922485
Title:
Lucid Desktop i386 failed to calculate the upgrade to Precise
Status in “apt” package in Ubuntu:
Triaged
Bug description:
Automated Upgrade Test: Lucid Desktop i386
https://jenkins.qa.ubuntu.com/view/Precise%20Upgrade%20Testing%20Dashboard/job/precise-upgrade-lucid-desktop/
Since Jan. 24, Lucid Desktop i386 failed to calculate the upgrade to
upgrade to Precise.
Logs attached
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.156.1
ProcVersionSignature: Ubuntu 3.2.0-10.18-generic 3.2.1
Uname: Linux 3.2.0-10-generic x86_64
ApportVersion: 1.91-0ubuntu1
Aptdaemon:
Architecture: amd64
Date: Fri Jan 27 10:22:19 2012
EcryptfsInUse: Yes
GsettingsChanges:
com.ubuntu.update-manager first-run false
com.ubuntu.update-manager launch-time 1325663980
com.ubuntu.update-manager show-details true
com.ubuntu.update-manager window-height 671
com.ubuntu.update-manager window-width 600
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
ProcEnviron:
PATH=(custom, user)
LANG=en_US.utf8
SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)
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