=====Failed! Error: SET PASSWORD has no significance for user... エラー=====
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*https://level69.net/archives/30666
*https://server-recipe.com/3865/
<pre>
Estimated strength of the password: 100
<pre>
Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) :
</pre>
*https://dev.mysql.com/doc/refman/8.0/ja/resetting-permissions.html
<pre>
$ sudo systemctl stop mysql
</pre>
*mysql.initファイルに記入
<pre>
ALTER USER 'root'@'localhost' IDENTIFIED BY 'MyNewPass';
</pre>
*ファイルを引数に起動
<pre>
$ mysqld --init-file=/home/ubuntu/mysql.init &
</pre>