package update-manager 1:0.81 failed to install/upgrade: subprocess pre-installation script returned error exit status 1

[Jesse Bye]

Binary package hint: update-manager

Upgrading from 7.10 Gutsy to 8.04 Hardy using update-manager -d. About midway through the installation stage, update-manager reported an error (similar to this one). After the upgrade process (which failed right before the clean-up stage), I rebooted and after logging in to GNOME received this error. Also, Package Manager is now reporting an error: "Error: BrokenCount > 0". My guess is that its related to the update-manager bug.

ProblemType: Package
Architecture: i386
Date: Wed Feb 27 19:23:28 2008
DistroRelease: Ubuntu 8.04
ErrorMessage: subprocess pre-installation script returned error exit status 1
Package: update-manager 1:0.81
PackageArchitecture: all
SourcePackage: update-manager
Title: package update-manager 1:0.81 failed to install/upgrade: subprocess pre-installation script returned error exit status 1
Uname: Linux 2.6.24-10-generic i686

[Marco Peter (flying-toaster)]

The error report midway the installation stage said it could not install the update-manager, because it is already installed.
Attached you find the output of the command window at the end of the installation stage.

--------------------------------------------------------
Fehler traten auf beim Bearbeiten von:
 update-manager
Traceback (most recent call last):
  File "logging/__init__.py", line 753, in emit
    self.flush()
  File "logging/__init__.py", line 731, in flush
    self.stream.flush()
IOError: [Errno 9] Bad file descriptor
Traceback (most recent call last):
  File "logging/__init__.py", line 753, in emit
    self.flush()
  File "logging/__init__.py", line 731, in flush
    self.stream.flush()
IOError: [Errno 9] Bad file descriptor
Traceback (most recent call last):
  File "logging/__init__.py", line 753, in emit
    self.flush()
  File "logging/__init__.py", line 731, in flush
    self.stream.flush()
IOError: [Errno 9] Bad file descriptor

[Jesse Bye (jesse-bye)]

The way I understand what is happening (maybe I'm wrong), dpkg fails to replace update-manager. The relevant terminal output:

Preparing to replace update-manager 1:0.81 (using .../update-manager_1%3a0.87.9_all.deb) ...
Traceback (most recent call last):
  File "/usr/bin/pycentral", line 1674, in <module>
    main()
  File "/usr/bin/pycentral", line 1668, in main
    rv = action.run(global_options)
  File "/usr/bin/pycentral", line 1169, in run
    pkg.prepare(used_runtimes, old_used_runtimes, old_pkg)
  File "/usr/bin/pycentral", line 803, in prepare
    rt.remove_byte_code(removed_fs)
AttributeError: 'NoneType' object has no attribute 'remove_byte_code'
dpkg: error processing /var/cache/apt/archives/update-manager_1%3a0.87.9_all.deb (--unpack):
 subprocess pre-installation script returned error exit status 1

I don't see any errors stating that it can't install because update-manager is already installed. It is attempting to "replace" update-manager when it fails.

[Richard Birnie (rbirnie-deactivatedaccount)]

thanks for reporting this bug. If anyone still has them could you please attach the log files from /var/log/dist-upgrade to help us figure out what caused the problem

[Nick B. (futurepilot)]

Same problem here. Just attempted to upgrade an Xubuntu system, and when it started to upgrade the packages it immediately gave this error.

[Richard Birnie (rbirnie-deactivatedaccount)]

Thanks for providing the logs. Changed status to triaged

[Michael Vogt (mvo)]

This is a oldish bug in python-central (the original one reported by Jesse Bye) that is fixed already.

[Michael Vogt (mvo)]

@Nick B: your bug seems to be a different one, could you please check for a file called "apt-term.log" and attach that please?

[Nick B. (futurepilot)]

Unfortunately, it appears that log was not created. Most likely because it never actually upgraded any packages. It failed immediately. The term.log I attached before was the only output in the terminal. Perhaps I should open a new bug for this?