ubuntu 卸载mysql mysql5.7.31安装

安装 mysql 8

sudo apt install mysql-server

// 修改密码
alter user 'root'@'localhost' identified by '123456';
flush privileges;

卸载

sudo rm /var/lib/mysql -R
sudo rm /etc/mysql -R
sudo apt autoremove mysql* --purge
sudo apt remove apparmor

 

 

安装mysql5.7.31

https://downloads.mysql.com/archives/community/

下载5.7.31的tar包

下载完成后，解压安装包，随后安装依赖

tar -xvf mysql-server_5.7.31-1ubuntu18.04_amd64.deb-bundle.tar

//安装依赖
sudo apt install libaio1
sudo apt install libtinfo5
sudo apt install libmecab2

安装

sudo dpkg -i mysql-common_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i mysql-community-server_5.7.31-1ubuntu18.04_amd64.deb #此步需要输入数据的root密码
sudo dpkg -i libmysqlclient20_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i libmysqlclient-dev_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i libmysqld-dev_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i mysql-community-client_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i mysql-client_5.7.31-1ubuntu18.04_amd64.deb
sudo dpkg -i mysql-common_5.7.31-1ubuntu18.04_amd64.deb

sudo dpkg -i mysql-community-server_5.7.32-1ubuntu18.04_amd64.deb
sudo dpkg -i mysql-server_5.7.32-1ubuntu18.04_amd64.deb

// 检测安装
mysql -u root -p