解决方案:重新安装.
1.
sudo rm -rf /var/lib/mysql
sudo rm -rf /etc/mysql
或:
sudo rm /var/lib/mysql/ -R
sudo rm /etc/mysql/ -R
2.
sudo apt-get autoremove mysql* --purge
sudo apt-get remove apparmor
sudo apt-get install mysql-server mysql-common
1.
sudo rm -rf /var/lib/mysql
sudo rm -rf /etc/mysql
或:
sudo rm /var/lib/mysql/ -R
sudo rm /etc/mysql/ -R
2.
sudo apt-get autoremove mysql* --purge
sudo apt-get remove apparmor
sudo apt-get install mysql-server mysql-common