本次操做在OpenStack虛擬機192.168.0.230上進行操做,hostname爲:host-172-16-5-7html
1.下載安裝包node
從MySQL官網上下載最新的mysql安裝包mysql-5.7.17-Linux-glibc2.5-x86_64.tar.gzmysql
下載地址:linux
http://dev.mysql.com/downloads/file/?id=467556sql
注意,必定要下載.tar.gz,不要下載那個.tar的包vim
將安裝包上傳到/opt目錄下:centos
2.檢查庫文件是否存在,若是存在則刪除wordpress
[root@host-172-16-5-7 ~]# rpm -qa | grep mysql mysql-libs-5.1.73-3.el6_5.x86_64 [root@host-172-16-5-7 ~]# rpm -e mysql-libs-5.1.73-3.el6_5.x86_64 --nodeps /sbin/ldconfig: File /usr/lib64/libpq.so.5.8 is empty, not checked. [root@host-172-16-5-7 ~]# rpm -qa | grep mysql
整個安裝過程參考以下文檔進行:ui
http://dev.mysql.com/doc/refman/5.7/en/binary-installation.htmlrest
3.Mysql依賴於libaio庫
yum search libaio # search for info yum install libaio # install library
4.分別執行如下步驟安裝Mysql
groupadd mysql useradd -r -g mysql -s /bin/false mysql cd /usr/local tar -zxvf /opt/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz -C /opt/ ln -s /opt/mysql-5.7.17-linux-glibc2.5-x86_64 mysql cd mysql mkdir mysql-files chmod 750 mysql-files chown -R mysql . chgrp -R mysql . bin/mysqld --initialize --user=mysql
若是這一步報錯以下:
[ERROR] --initialize specified but the data directory has files in it. Aborting.
解決方案:
rm -rf /var/lib/mysql/
從新執行上面的命令,提示生成了一個臨時密碼:
2017-01-03T09:12:33.748807Z 1 [Note] A temporary password is generated for root@localhost: =*-gFoje>1Pr
執行這一步應該生成一個data目錄,若是沒有生成,那必定是由於系統中存在已經安裝好了的mysql,先按照步驟2卸載掉,而後從新執行
bin/mysqld --initialize --user=mysql bin/mysql_ssl_rsa_setup chown -R root . chown -R mysql data mysql-files bin/mysqld_safe --user=mysql &
下面這一步可選
cp support-files/mysql.server /etc/init.d/mysqld
5.安裝後的配置
修改/usr/local/mysql/support-files/my-default.cnf
basedir = /usr/local/mysql datadir = /usr/local/mysql/data port = 3306
改完以後複製一份到/etc/目錄下,重命名爲my.cnf
cp my-default.cnf /etc/my.cnf
添加mysql環境變量
vim /etc/profile export MYSQL_HOME=/usr/local/mysql export PATH=$MYSQL_HOME/bin:$PATH source /etc/profile
6.啓動mysql
service mysqld start
啓動成功:
[root@ambari support-files]# service mysqld start Starting MySQL.Logging to '/usr/local/mysql/data/ambari.err'. . [ OK ] [root@ambari support-files]# service mysqld status MySQL running (8010) [ OK ]
執行這一步的時候有可能會致使啓動不成功,錯誤信息大概以下:
MySQL: Starting MySQL….. ERROR! The server quit without updating PID file
可參照以下連接解決:
https://icesquare.com/wordpress/mysql-starting-mysql-error-the-server-quit-without-updating-pid-file/
若是不肯意麻煩,能夠直接重啓機器也能夠解決該問題
至此,mysql就安裝好並啓動成功了。
7.修改root密碼:
採用
mysql -uroot -p
登陸的時候,輸入前面記錄的root密碼,提示密碼不正確,沒辦法,咱們只好本身去修改root密碼了
具體步驟以下:
step1:
vim /etc/my.cnf
在[mysqld]下添加一行skip-grant-tables
step2:
service mysqld restart後,便可直接用mysql進入
mysql> update mysql.user set authentication_string=password('root') where user='root' and Host = 'localhost'; mysql> flush privileges; mysql> quit;
step3:
將/etc/my.cnf文件還原,從新啓動mysql:service mysqld restart,這個時候可使用mysql -u root -p'root'進入了
step4:
進入到sql後之後在經過以下命令修改一次密碼,不然沒法進行其餘操做:
mysql> SET PASSWORD = PASSWORD('mysql');
step5:
在sql控制檯執行show databases;結果以下:
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec)
本文地址:http://www.linuxprobe.com/centos-install-mysql-5-7-17.html