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mysql离线二进制安装

清理环境：

# 检测是否安装过mysql
rpm -qa | grep mysql
# 删除命令
rpm -e --nodeps mysql-libs-5.1.73-5.el6_6.x86_64
# 清除相关文件夹
whereis mysql
rm -rf /usr/lib64/mysql /usr/share/mysql
find / -name mysql
rm -rf /etc/selinux/targeted/active/modules/100/mysql

1、下载安装包：（找个可以访问公网的机器下载，scp传给离线机）

wget https://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz

2、创建用户

useradd -r mysql -M -s /bin/false

3、安装

tar zxf mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
mv /usr/local/mysql-5.7.26-linux-glibc2.12-x86_64/  /usr/local/mysql
mkdir /usr/local/mysql/data
chown -R mysql.mysql /usr/local/mysql/
cd /usr/local/mysql/
bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

2021-11-08T16:53:40.303955Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2021-11-08T16:53:40.737310Z 0 [Warning] InnoDB: New log files created, LSN=45790
2021-11-08T16:53:40.826236Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2021-11-08T16:53:40.904487Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 6d06052a-40b4-11ec-890e-0800271838f4.
2021-11-08T16:53:40.965782Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2021-11-08T16:53:40.966618Z 1 [Note] A temporary password is generated for root@localhost: .Do+jldzK8t_
#初始密码：.Do+jldzK8t_

4、修改配置

vim /etc/my.cnf    #注释所有，再添加如下内容
[mysqld]
basedir=/usr/local/mysql
datadir=/usr/local/mysql/data
port=3306
socket=/usr/local/mysql/mysql.sock
character-set-server=utf8
log-error=/var/log/mysqld.log
pid-file=/tmp/mysqld.pid
[mysql]
socket=/usr/local/mysql/mysql.sock
[client]
socket=/usr/local/mysql/mysql.sock

vim /etc/profile.d/mysql.sh 
export PATH=/usr/local/mysql/bin:$PATH  #写入此一行
#保存刷新
source /etc/profile.d/mysql.sh

cp support-files/mysql.server /etc/init.d/mysqld  #配置使用service mysqld start/stop/restart命令管理mysql
chmod +x /etc/init.d/mysqld    

vim /etc/init.d/mysqld
basedir=/usr/local/mysql　　  #第46行  补全安装目录
datadir=/usr/local/mysql/data  #第47行  补全数据所在目录

/etc/init.d/mysqld start        #启动

5、登录

#修改密码
mysqladmin -u root -p'初始密码'  password '新密码'  #新密码必须包含大小写英文、数字、特殊符号

#登录mysql
mysq -u root -p'新密码' 

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