Comment 1 for bug 1577712

The old debian-start script used by upstart runs mysql_upgrade, checks for crashed tables and checks for passwordless root accounts (printing a warning if one is found).

In 5.7, d/postinst will secure passwordless root accounts with unix socket auth and run mysql_upgrade, and mysql_upgrade itself will check for and fix any crashed tables, so this script is no longer needed.

Additionally this could cause mysql_upgrade to be executed by both upstart and postinst on upgrades, causing various errors.

The solution is to change the script in 5.7 to a no-op