Cacti をバージョンアップすると、「ERROR: Your Cacti database login account does not have access to the MySQL TimeZone database.」 エラーが発生しログインできない状態になる

Pre-installation Checks

MySQL TimeZone Support

ERROR: Your Cacti database login account does not have access to the MySQL TimeZone database. Please provide the Cacti database account "select" access to the "time_zone_name" table in the "mysql" database, and populate MySQL's TimeZone information before proceeding.

Required PHP Module Support

Cacti requires several PHP Modules to be installed to work properly. If any of these are not installed, you will be unable to continue the installation until corrected. In addition, for optimal system performance Cacti should be run with certain MySQL system variables set. Please follow the MySQL recommendations at your discretion. Always seek the MySQL documentation if you have any questions.

The following PHP extensions are mandatory, and MUST be installed before continuing your Cacti install.

 grant select on mysql.time_zone_name to 'cactiuser'@'localhost'
   identified by '(cactiuser のパスワード)';