centos7.2下安裝mysql5.7，使用rpm包安裝
0、環境 本文作業系統: CentOS 7.2.1511 x86_64 MySQL 版本: 5.7.16 1、解除安裝系統自帶的 mariadb-lib [[email protected] ~]# rpm -qa|grep mariadb mariadb-libs-5.5.44-2.el7.centos.x86_64 [[email protected] ~]# rpm -e mariadb-libs-5.5.44-2.el7.centos.x86_64 --nodeps 2、下載mysql5.7.16 rpm安裝包，官網最新的mysql安裝包是mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar下載地址 [[email protected] ~]# wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar 然後解壓
[[email protected]_node_1 src]# tar -xvf mysql-5.7.16-1.el7.x86_64.rpm-bundle.tar mysql-community-libs-compat-5.7.16-1.el7.x86_64.rpm mysql-community-devel-5.7.16-1.el7.x86_64.rpm mysql-community-minimal-debuginfo-5.7.16-1.el7.x86_64.rpm mysql-community-libs-5.7.16-1.el7.x86_64.rpm mysql-community-common-5.7.16-1.el7.x86_64.rpm mysql-community-embedded-compat-5.7.16-1.el7.x86_64.rpm mysql-community-test-5.7.16-1.el7.x86_64.rpm mysql-community-embedded-devel-5.7.16-1.el7.x86_64.rpm mysql-community-server-minimal-5.7.16-1.el7.x86_64.rpm mysql-community-server-5.7.16-1.el7.x86_64.rpm mysql-community-client-5.7.16-1.el7.x86_64.rpm mysql-community-embedded-5.7.16-1.el7.x86_64.rpm
3、安裝 依次執行（幾個包有依賴關係，所以執行有先後）下面命令安裝 [[email protected] ~]# rpm -ivh mysql-community-common-5.7.16-1.el7.x86_64.rpm [[email protected] ~]# rpm -ivh mysql-community-libs-5.7.16-1.el7.x86_64.rpm [[email protected] ~]# rpm -ivh mysql-community-client-5.7.16-1.el7.x86_64.rpm [[email protected]~]# rpm -ivh mysql-community-server-5.7.16-1.el7.x86_64.rpm 在安裝rpm -ivh mysql-community-server-5.7.16-1.el7.x86_64.rpm的時候報錯如下：
[[email protected]_node_1 src]# rpm -ivh mysql-community-server-5.7.16-1.el7.x86_64.rpm warning: mysql-community-server-5.7.16-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY error: Failed dependencies: libaio.so.1()(64bit) is needed by mysql-community-server-5.7.16-1.el7.x86_64 libaio.so.1(LIBAIO_0.1)(64bit) is needed by mysql-community-server-5.7.16-1.el7.x86_64 libaio.so.1(LIBAIO_0.4)(64bit) is needed by mysql-community-server-5.7.16-1.el7.x86_64 net-tools is needed by mysql-community-server-5.7.16-1.el7.x86_64
這個報錯的意思是需要安裝libaio包和net-tools包：可以yum安裝一下，安裝 libaio-0.3.107-10.el6.x86_64.rpm，下載地址：
4、資料庫初始化 為了保證資料庫目錄為與檔案的所有者為 mysql 登陸使用者，如果你是以 root 身份執行 mysql 服務，需要執行下面的命令初始化 mysqld --initialize --user=mysql
如果是以 mysql 身份執行，則可以去掉 --user 選項。
另外 --initialize 選項預設以“安全”模式來初始化，則會為 root 使用者生成一個密碼並將該密碼標記為過期，登陸後你需要設定一個新的密碼，而使用 --initialize-insecure 命令則不使用安全模式，則不會為 root 使用者生成一個密碼。
這裡演示使用的 --initialize 初始化的，會生成一個 root 賬戶密碼，密碼在log檔案裡，紅色區域的就是自動生成的密碼
[[email protected]_node_1 src]# cat /var/log/mysqld.log 2016-12-07T04:41:58.028558Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2016-12-07T04:41:58.315188Z 0 [Warning] InnoDB: New log files created, LSN=45790 2016-12-07T04:41:58.355114Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2016-12-07T04:41:58.418448Z 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: 7cc98831-bc37-11e6-a263-000c29f902dc. 2016-12-07T04:41:58.419935Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened. 2016-12-07T04:41:58.420558Z 1 [Note] A temporary password is generated for [email protected]: )1r3gi,hjgQa
現在啟動mysql資料庫systemctl start mysqld.service
[[email protected]_node_1 src]# systemctl start mysqld.service
[[email protected]_node_1 src]# mysql -uroot -p
Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.16
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql>
5、修改密碼
該密碼被標記為過期了，如果想正常使用還需要修改密碼
mysql> show databases;
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
以前的 password()函式將會被拋棄，官方建議使用下面的命令來修改密碼
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'new_password';
同時，如果你設定的密碼過於簡單也會報錯。
mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123';
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements