Comment 3 for bug 1445383

I have another solution:
- 1st i run update:
sudo aptitude update
when it is done then:
sudo aptitude purge mysql-server-core-5.6 mysql-client-core-5.6
aptitute will tell it has many dependencies, many packages will be removed ... so it asks if i accept that solution - choose no (n)
then it will propose installing:

1) mariadb-client-core-10.0 [10.0.17-0ubuntu1 (vivid)]
2) mariadb-common [10.0.17-0ubuntu1 (vivid)]
3) mariadb-server-core-10.0 [10.0.17-0ubuntu1 (vivid)]

- if you accept this - mysql will be removed, mariadb (fork of mysql) will be installed, and akonadi will start without any issues.