Linux 安装 mysql-5.7.31-linux-glibc2.12-x86_64.tar.gz

一、删除原来安装的mysql

1.查询并删除

[root@localhost /]# find / -name mysql
find: ‘/run/user/1000/gvfs’: Permission denied
/etc/selinux/targeted/active/modules/100/mysql
/var/lib/mysql
/usr/lib64/mysql
/usr/share/mysql
/usr/local/mysql
/usr/local/mysql/bin/mysql
/usr/local/mysql/include/mysql
/home/etlbat/app/mysql

[root@localhost /]# rm -rf /etc/selinux/targeted/active/modules/100/mysqlbin/mysql   /usr/local/mysql/include/mysql   /home/etlbat/app/mysql

[root@localhost /]# find / -name mysql
find: ‘/run/user/1000/gvfs’: Permission denied

2.删除配置文件

2.1删除mysql的配置文件(my.cnf文件)

[root@localhost /]# rm -rf /etc/my.cnf

2.2删除 /etc/init.d/ 下跟mysql有关的全部文件

[root@localhost /]# cd /etc/init.d/
[root@localhost init.d]# ll
total 52
-rw-r--r--. 1 root root 18281 May 22  2020 functions
-rwxrwxrwx. 1 root root 10614 Dec  4 03:20 mysqld
-rwxr-xr-x. 1 root root  4569 May 22  2020 netconsole
-rwxr-xr-x. 1 root root  7928 May 22  2020 network
-rw-r--r--. 1 root root  1160 Oct  1  2020 README

[root@localhost init.d]# rm mysqld
rm: remove regular file ‘mysqld’? y

[root@localhost init.d]# ls
functions  netconsole  network  README

3. 删除mysql的用户和组

[root@localhost init.d]# userdel mysql

二、安装步骤

1.进入mysql的安装目录，将文件导入并改名

[root@