tar xvf mysql-5.7.26-linux-glibc2.12-x86_64.tar.gz
mv mysql-5.7.26-linux-glibc2.12-x86_64 /application/mysql
添加全局變量
vim /etc/profile
export PATH=/application/mysql/bin:$PATH
source /etc/profile
創建mysql用戶
useradd -s /bin/nologin -M mysql
創建mysql數據目錄並授權用戶
mkdir -p /application/mysql/data
chown -R mysql:mysql /application/mysql/
5.7版本初始化命令
mysqld --initialize --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data
如果出現報錯:
安裝依賴包:
yum -y install libaio-devel
安裝成功後會有一個臨時密碼:
說明:
--initialize 參數:(以後自定義的密碼複雜度也要按照規定來設置)
1. 對於密碼複雜度進行定製:12位,4種
2. 密碼過期時間:180
3. 給root@localhost用戶設置臨時密碼
--initialize-insecure 參數
無限制,無臨時密碼
rm -rf /application/mysql/data/*
mysqld --initialize-insecure --user=mysql --basedir=/application/mysql --datadir=/application/mysql/data
配置文件的準備(準備一個簡單的配置文件)
cat >/etc/my.cnf <<EOF
[mysqld]
user=mysql
basedir=/application/mysql
datadir=/application/mysql/data
socket=/tmp/mysql.sock
server_id=6
port=3306
[mysql]
socket=/tmp/mysql.sock
EOF
啓動數據庫
1. sys-v
cp /application/mysql/support-files/mysql.server /etc/init.d/mysqld
/etc/init.d/mysqld start
2 systemd
cat >/etc/systemd/system/mysqld.service <<EOF
[Unit]
Description=MySQL Server
Documentation=man:mysqld(8)
Documentation=http://dev.mysql.com/doc/refman/en/using-systemd.html
After=network.target
After=syslog.target
[Install]
WantedBy=multi-user.target
[Service]
User=mysql
Group=mysql
ExecStart=/application/mysql/bin/mysqld --defaults-file=/etc/my.cnf
LimitNOFILE = 5000
EOF
systemctl start mysqld.service
systemctl enable mysqld.service