ubuntu 中运行完sudo apt-get install curl之后，最后出现:

ldconfig deferred processing now taking placeErrors were encountered while processing: mysql-server-5.5 mysql-serverE: Sub-process /usr/bin/dpkg returned an error code (1)

需要将原来的mysql数据库进行重装，操作之前最好是备份一下目前的数据库.

删除 /var/lib/mysql和/etc/mysql两个文件夹

sudo rm /var/lib/mysql/ -Rsudo rm /etc/mysql/ -R

卸载mysql数据库和apparmor

sudo apt-get autoremove mysql* --purgesudo apt-get remove apparmor

重新安装mysql

sudo apt-get install mysql-server mysql-common

参考