在 CentOS7 上安裝 MySQL8 0 21

wget

# 安裝倉庫

yum -y install mysql80-community-release-el7-3.noarch.rpm

# 確認可以安裝的版本

yum list |

grep mysql |

grep server

mysql-community-server.x86_64 8.0.21-1.el7 mysql80-community

# 安裝 mysql

yum -y install mysql-community-server

# 啟動mysql

systemctl restart mysqld
# 檢視狀態
systemctl status mysqld

# 修改密碼，初始密碼在 /var/log/mysqld.log

[root@d-wy-dev8 ~]
# grep password /var/log/mysqld.log
root@localhost: dic%e:ptd54?
[root@d-wy-dev8 ~]
# mysql -u root -p
mysql> alter user 'root'@'localhost' identified by '《你的密碼》'
;query ok, 0 rows affected (0.00 sec)
mysql> flush privileges;
query ok, 0 rows affected (0.00 sec)
# 確認一下安裝的mysql的版本
[root@do-airflow ~]
# mysql -u root -p
enter password:
welcome to the mysql monitor. commands end with ; or \g.
your mysql connection id is 2863
server version: 8.0.21 mysql community server - gpl
# 修改datadir，如果有專門用於存放資料的磁碟分割槽，就要改一下這個
[root@d-wy-dev8 ~]
# systemctl stop mysqld
[root@d-wy-dev8 ~]
# mkdir /mnt/nokia/mysql-data
[root@d-wy-dev8 ~]
# mv /var/lib/mysql /mnt/nokia/mysql-data/
[root@d-wy-dev8 ~]
# ln -s /mnt/nokia/mysql-data/mysql /var/lib/
[root@d-wy-dev8 ~]
# chown -r mysql:mysql /mnt/nokia/mysql-data
[root@d-wy-dev8 ~]
# chown mysql:mysql /var/lib/mysql
[root@d-wy-dev8 ~]
# ll /var/lib/mysql
lrwxrwxrwx. 1 mysql mysql 27 7月 14 16:45 /var/lib/mysql -> /mnt/nokia/mysql-data/mysql
# 重新啟動 mysql
[root@d-wy-dev8 ~]
# systemctl start mysqld
[root@d-wy-dev8 ~]
## 解除安裝 mysql yum庫
[root@d-wy-dev8 ~]
# yum -y remove mysql80-community-release-el7-3.noarch.rpm
[root@d-wy-dev8 ~]
# rm -f /etc/yum.repos.d/mysql*
[root@d-wy-dev8 ~]
#

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