[Bug 1431345] Re: package mysql-common 5.6.23-1~exp1~ubuntu3 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[RickB]

My mysql instance was failing to start in my VM instance (Ubuntu 15.04).
So I uninstalled mysql-server then removed /var/lib/mysql /var/log/mysql
/etc/mysql.

I had hoped that a clean re-install would fix the startup problem, but
now I have another problem due to this bug. I see the same error
messages that are reported above.

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https://bugs.launchpad.net/bugs/1431345

Title:
  package mysql-common 5.6.23-1~exp1~ubuntu3 failed to install/upgrade:
  subprocess installed post-installation script returned error exit
  status 2

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