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mysqlの初期化方法

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mysqlの初期化方法

もうダメだ!全部最初に戻したい!そうゆう時のためのメモ

1.datadirの下を全部消す!

クエリ
> show variables like 'datadir';

my.cnf
[mysqld]
datadir = /var/lib/mysql

で調べて、消す!

sudo rm -r /var/lib/mysql/*

2.mysqlユーザーになる

sudo su - mysql

3.DB初期化

mysql_install_db --datadir=/opt/vcs/mysql --user=mysql

この時、 --user=mysqlを忘れると起動しないので注意
[ERROR] Fatal error: Can't open and lock privilege tables: Table './mysql/user' is marked as crashed and last (automatic?) repair failed

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