申明,不要用root安裝
1. 下載mysql的repo源
$ wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
2. 安裝mysql-community-release-el7-5.noarch.rpm包
$ sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
安裝這個包後,會獲得兩個mysql的yum repo源:/etc/yum.repos.d/mysql-community.repo,/etc/yum.repos.d/mysql-community-source.repo。
3. 安裝mysql
$ sudo yum install mysql-server mysql-client libmysqlclient-dev mysql-devel MySQL-python
有問題看看是不是服務沒開systemctl status mysqld
如果報錯說找不到申明plugin,如果用root安裝是會遇到這個問題的!
可能是因爲/var/lib/mysql/這個目錄下面有很多文件的所有者和組不是mysql用戶,改改權限試試
初始化
mysql_install_db
方法1: 用SET PASSWORD命令
mysql -u root
mysql> SET PASSWORD FOR 'root'@'localhost' = PASSWORD('newpass');
方法2:用mysqladmin
mysqladmin -u root password "newpass"
如果root已經設置過密碼,採用如下方法
mysqladmin -u root password oldpass "newpass"
方法3: 用UPDATE直接編輯user表
mysql -u root
mysql> use mysql;
mysql> UPDATE user SET Password = PASSWORD('newpass') WHERE user = 'root';
mysql> FLUSH PRIVILEGES;
在丟失root密碼的時候,可以這樣
mysqld_safe --skip-grant-tables&
mysql -u root mysql
mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='root';
mysql> FLUSH PRIVILEGES;
vi /etc/my.cnf
# 在文件中的[mysqld]下面增加一行內容
character_set_server = utf8
systemctl restart mysqld
收穫不會與付出成反比 by juandx