The package 'postgresql-8.3' is marked for removal but it is in the removal blacklist.

[Lovegildo Garcia]

update manager

In trying to upgrade to Ubuntu version 12.04 this is the error message I got:

Could not calculate the upgrade

An unresolvable problem occurred while calculating the upgrade:
The package 'postgresql-8.3' is marked for removal but it is in the removal blacklist.

Lovey

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.25.9
ProcVersionSignature: Ubuntu 3.0.0-12.20-server 3.0.4
Uname: Linux 3.0.0-12-server x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Sat Jun 23 00:34:57 2012
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2012-06-23 (0 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Kevin Dalley (nereocystis)]

I performed the following steps and the problem went away:

  516 sudo aptitude remove postgresql-8.3
  517 sudo aptitude install postgresql-8.4

I have not yet completed the upgrade (I'm short on disk space), but this issue has disappeared.

[Kevin Dalley (nereocystis)]

My upgrade worked fine, by replacing postgresql-8.3 with postgresql-8.4.