- 备份原有的数据库sql文件卸载原有的数据库
卸载(将所有依赖项通过以下命令删除)dpkg --list|grep mysql
sudo apt-get remove mysql-common
sudo apt-get autoremove --purge mysql-server
sudo apt-get autoremove --purge mysql-apt-config
重新安装mysql
从官网下载对应的安装包.deb
sudo dpkg -i mysql-apt-config_0.8.10-1_all.deb
在安装前把my.cnf下面的修改以下内容sudo apt-get upgrade
[mysqld] lower_case_table_names = 1安装mysql
设置密码sudo apt install mysql-server
选择Use Strong Password Encryption (RECOMMENDED)
mysql8 修改root远程连接权限systemctl start mysql
CREATE USER ‘root’@’%’ IDENTIFIED BY ‘Hadoop3!’;
grant all privileges on . to ‘root’@’%’;
alter user ‘root’@’%’ identified with mysql_native_password by ‘Hadoop3!’;
flush privileges;



