[Bug 735830] Re: package mysql-server-5.1 5.1.37-1ubuntu5.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[James Page]

Thank you for taking the time to report this bug and helping to make
Ubuntu better.

It looks like you have tried a number of things to resolve this problem;
however I think that the original cause of the issue may have been that
the InnoDB file locations in /etc/mysql/my.cnf where outside of the
apparmor profile and hence rw access to them was denied.

If possible I think that its worth trying to purge the packages and re-
install using the following commands:

  sudo apt-get purge mysql-server-5.1
  sudo apt-get install mysql-server-5.1

This should ensure that you have an up-to-date base apparmor
configuration.  /etc/mysql/my.cnf is installed by mysql-common so this
should leave your configuration intact - however this does mean that
mysql will fail to start during the setup phase of the install.

You will then need to update the apparmor profile in
/etc/apparmor.d/usr.sbin.mysql to include rw access to this location; I
think you will be able to complete the installation by running the
following command:

  sudo dpkg-reconfigure mysql-server-5.1

Please update this bug report if this resolves your issue.

** Changed in: mysql-dfsg-5.1 (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/735830

Title:
  package mysql-server-5.1 5.1.37-1ubuntu5.5 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 1