Mysql二进制安装

Mysql二进制安装

mysql5.7,8.0 通用二进制安装

mysql安装前准备

#CentOS 8 安装5.7，8.0版本需要安装以下包
dnf -y install libaio ncurses-compat-libs

#CentOS 7 安装5.7,8.0不需要额外安装其他包

#CentOS 6 安装5.7,8.0版本需要安装以下包
yum -y install libaio numactl


#CentOS 8 如果没有libaio和ncurses-compat-libs包，会提示以下错误,其他版本错误类似
[root@centos82 local]#mysqld --initialize --user=mysql --datadir=/data/mysql
mysqld: error while loading shared libraries: libaio.so.1: cannot open shared object file: No such file or directory

[root@centos82 local]#mysql -uroot -p744123
mysql: error while loading shared libraries: libtinfo.so.5: cannot open shared object file: No such file or directory

安装操作步骤

#将压缩包解压到指定目录
tar xvf mysql-5.7.30-linux-glibc2.12-x86_64.tar.gz -C /usr/local/
tar xvf mysql-8.0.20-linux-glibc2.12-x86_64.tar.xz -C /usr/local/

#进入解压缩目录
cd /usr/local

#建立软连接并更改权限
ln -s mysql-5.7.30-linux-glibc2.12-x86_64/ mysql
ln -s mysql-8.0.20-linux-glibc2.12-x86_64/ mysql
chown -R root.root /usr/local/mysql/

#mysql用户组和用户的创建
groupadd -r -g 306 mysql
useradd -r -u 306 -g306 -s /bin/false mysql

#环境变量设置
##方法1:
echo 'PATH=/usr/local/mysql/bin:$PATH' > /etc/profile.d/mysql.sh
. /etc/profile.d/mysql.sh
##方法2:
ln -s /usr/local/mysql/bin/* /usr/local/bin/

#准备配置文件
vim /etc/my.cnf
[mysqld]
datadir=/data/mysql
skip_name_resolve=1
socket=/data/mysql/mysql.sock
log-error=/data/mysql/mysql.log
pid-file=/data/mysql/mysql.pid

[client]
socket=/data/mysql/mysql.sock

[mysql]
auto-rehash
prompt="\u@\h [\d]>"

#初始化数据库
mysqld --initialize --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql

#准备服务脚本
cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

#启动mysql
chkconfig --add mysqld
service mysqld start

#提取root初始化密码
awk '/temporary password/{print $NF}' /data/mysql/mysql.log

#修改root登录口令
mysqladmin -uroot -p'Gzd4nvcg!&/+' password 744123

#登录mysql
mysql -uroot -p744123