Centos7 安装 Mysql5.7 阿里云安装
可以参照之前第一篇的 Mysql 安装,都是可以的
CentOS7 安装 Mysql
卸载
卸载掉安装的部分 首先执行查看命令,看一下都安转了什么东东:
[root@ppl ~]# rpm -qa|grep -i mysql mysql57-community-release-el7-10.noarch mysql-community-client-5.7.24-1.el7.x86_64 mysql-community-libs-5.7.24-1.el7.x86_64 mysql-community-libs-compat-5.7.24-1.el7.x86_64 mysql-community-common-5.7.24-1.el7.x86_64 mysql-community-server-5.7.24-1.el7.x86_64 [root@ppl ~]#
有的话就开始卸载 执行卸载命令:
yum remove mysql-community mysql-community-server mysql-community-libs mysql-communitycommon yum remove mysql57-community-release-el7-10.noarch
终极检查 再进行一遍检查: rpm -qa |grep -i mysql ,安装部分已完全卸载掉。
清理文件 查看 mysql 文件目录: find / -name mysql .
[root@ppl ~]# rpm -qa|grep -i mysql [root@ppl ~]# find / -name mysql /usr/share/mysql [root@ppl ~]# rm -rf /usr/share/mysql [root@ppl ~]# find / -name mysql [root@ppl ~]#
安装
下载 mysql 源安装包
[root@ppl ~]# wget http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm --2018-11-05 23:29:42-- http://dev.mysql.com/get/mysql57-community-release-el7- 9.noarch.rpm Resolving dev.mysql.com (dev.mysql.com)... 137.254.60.11 Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:80... connected. HTTP request sent, awaiting response... 302 Found Location: http://101.96.10.45/dev.mysql.com/get/mysql57-community-release-el7- 9.noarch.rpm [following] --2018-11-05 23:29:42-- http://101.96.10.45/dev.mysql.com/get/mysql57-communityrelease- el7-9.noarch.rpm Connecting to 101.96.10.45:80... connected. HTTP request sent, awaiting response... 301 Moved Permanently Location: https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm [following] --2018-11-05 23:29:42-- https://dev.mysql.com/get/mysql57-community-release-el7- 9.noarch.rpm Connecting to dev.mysql.com (dev.mysql.com)|137.254.60.11|:443... connected. HTTP request sent, awaiting response... 302 Found Location: https://repo.mysql.com//mysql57-community-release-el7-9.noarch.rpm [following] --2018-11-05 23:29:44-- https://repo.mysql.com//mysql57-community-release-el7- 9.noarch.rpm Resolving repo.mysql.com (repo.mysql.com)... 23.41.23.231 Connecting to repo.mysql.com (repo.mysql.com)|23.41.23.231|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 9224 (9.0K) [application/x-redhat-package-manager] Saving to: ‘mysql57-community-release-el7-9.noarch.rpm’ 100% [====================================================================================== =====================================>] 9,224 --.-K/s in 0s 2018-11-05 23:29:46 (156 MB/s) - ‘mysql57-community-release-el7-9.noarch.rpm’ saved [9224/9224] [root@ppl ~]#
安装 mysql 源
[root@ppl ~]# yum localinstall mysql57-community-release-el7-9.noarch.rpm Loaded plugins: fastestmirror Examining mysql57-community-release-el7-9.noarch.rpm: mysql57-community-release-el7- 9.noarch Marking mysql57-community-release-el7-9.noarch.rpm to be installed Resolving Dependencies --> Running transaction check ---> Package mysql57-community-release.noarch 0:el7-9 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================= ============================================================================== Package Arch Version Repository Size ======================================================================================= ============================================================================== Installing: mysql57-community-release noarch el7-9 /mysql57-community-release-el7-9.noarch 8.6 k Transaction Summary ======================================================================================= ============================================================================== Install 1 Package Total size: 8.6 k Installed size: 8.6 k Is this ok [y/d/N]: y Downloading packages: Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : mysql57-community-release-el7-9.noarch 1/1 Verifying : mysql57-community-release-el7-9.noarch 1/1 Installed: mysql57-community-release.noarch 0:el7-9 Complete! [root@ppl ~]#
检查 mysql 源是否安装成功
[root@ppl ~]# yum repolist enabled | grep "mysql.*-community.*" mysql-connectors-community/x86_64 MySQL Connectors Community 74 mysql-tools-community/x86_64 MySQL Tools Community 74 mysql57-community/x86_64 MySQL 5.7 Community Server 307 [root@ppl ~]#
或者安装完成后会将 MySQL 的 Yum 仓库添加到系统的仓库 list 中,可以/etc/yum.repos.d 目录下看到新增的两个文
件(mysql-community.repo 和 mysql-community-source.repo)。
[root@ppl ~]# cd /etc/yum.repos.d [root@ppl yum.repos.d]# pwd /etc/yum.repos.d [root@ppl yum.repos.d]# ll -h total 44K -rw-r--r--. 1 root root 2.5K Jun 15 18:22 CentOS-Base.repo -rw-r--r--. 1 root root 1.7K Apr 28 2018 CentOS-Base.repo.bak -rw-r--r--. 1 root root 1.3K Apr 28 2018 CentOS-CR.repo -rw-r--r--. 1 root root 649 Apr 28 2018 CentOS-Debuginfo.repo -rw-r--r--. 1 root root 314 Apr 28 2018 CentOS-fasttrack.repo -rw-r--r--. 1 root root 630 Apr 28 2018 CentOS-Media.repo -rw-r--r--. 1 root root 1.3K Apr 28 2018 CentOS-Sources.repo -rw-r--r--. 1 root root 4.7K Apr 28 2018 CentOS-Vault.repo -rw-r--r--. 1 root root 1.4K Sep 12 2016 mysql-community.repo -rw-r--r--. 1 root root 1.5K Sep 12 2016 mysql-community-source.repo [root@ppl yum.repos.d]#
安装 MySQL
[root@ppl ~]# yum install mysql-community-server Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: mirrors.aliyun.com * extras: mirrors.aliyun.com * updates: mirrors.aliyun.com base | 3.6 kB 00:00:00 extras | 3.4 kB 00:00:00 mysql-connectors-community | 2.5 kB 00:00:00 mysql-tools-community | 2.5 kB 00:00:00 mysql57-community | 2.5 kB 00:00:00 updates | 3.4 kB 00:00:00 Resolving Dependencies --> Running transaction check ---> Package mysql-community-server.x86_64 0:5.7.24-1.el7 will be installed --> Processing Dependency: mysql-community-common(x86-64) = 5.7.24-1.el7 for package: mysql-community-server-5.7.24-1.el7.x86_64 --> Processing Dependency: mysql-community-client(x86-64) >= 5.7.9 for package: mysqlcommunity- server-5.7.24-1.el7.x86_64 --> Running transaction check ---> Package mysql-community-client.x86_64 0:5.7.24-1.el7 will be installed --> Processing Dependency: mysql-community-libs(x86-64) >= 5.7.9 for package: mysqlcommunity- client-5.7.24-1.el7.x86_64 ---> Package mysql-community-common.x86_64 0:5.7.24-1.el7 will be installed --> Running transaction check ---> Package mysql-community-libs.x86_64 0:5.7.24-1.el7 will be installed --> Finished Dependency Resolution Dependencies Resolved ======================================================================================= ============================================================================== Package Arch Version Repository Size ======================================================================================= ============================================================================== Installing: mysql-community-server x86_64 5.7.24- 1.el7 mysql57-community 165 M Installing for dependencies: mysql-community-client x86_64 5.7.24- 1.el7 mysql57-community 24 M mysql-community-common x86_64 5.7.24- 1.el7 mysql57-community 274 k mysql-community-libs x86_64 5.7.24- 1.el7 mysql57-community 2.2 M Transaction Summary ======================================================================================= ============================================================================== Install 1 Package (+3 Dependent packages) Total download size: 192 M Installed size: 863 M Is this ok [y/d/N]: y ..... .... Total 525 kB/s | 192 MB 00:06:13 Running transaction check Running transaction test Transaction test succeeded Running transaction Installing : mysql-community-common-5.7.24-1.el7.x86_64 1/4 Installing : mysql-community-libs-5.7.24-1.el7.x86_64 2/4 Installing : mysql-community-client-5.7.24-1.el7.x86_64 3/4 Installing : mysql-community-server-5.7.24-1.el7.x86_64 4/4 Verifying : mysql-community-server-5.7.24-1.el7.x86_64 1/4 Verifying : mysql-community-libs-5.7.24-1.el7.x86_64 2/4 Verifying : mysql-community-common-5.7.24-1.el7.x86_64 3/4 Verifying : mysql-community-client-5.7.24-1.el7.x86_64 4/4 Installed: mysql-community-server.x86_64 0:5.7.24-1.el7 Dependency Installed: mysql-community-client.x86_64 0:5.7.24-1.el7 mysql-community-common.x86_64 0:5.7.24-1.el7 mysql-community-libs.x86_64 0:5.7.24-1.el7 Complete! [root@ppl ~]#
如果出现以下错误
Error downloading packages: mysql-community-common-5.7.24-1.el7.x86_64: [Errno 256] No more mirrors to try. yum clean all yum makecache yum update 或者 yum -y update
登录
修改 root 本地登录密码
安装完成后,会生成一个临时的随机密码给 root 账户,保存在/var/log/mysqld.log,可以使用命令查看。
[root@ppl ~]# grep 'temporary password' /var/log/mysqld.log 2018-11-05T04:41:11.945054Z 1 [Note] A temporary password is generated for root@localhost: rgX(v.oM>3nl [root@ppl ~]#
启动 MySQL 服务
systemctl start mysqld
查看 MySQL 的启动状态
systemctl status mysqld
结果如下
[root@ppl ~]# systemctl start mysqld [root@ppl ~]# systemctl status mysqld ● mysqld.service - MySQL Server Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2018-11-05 23:56:28 EST; 5s ago Docs: man:mysqld(8) http://dev.mysql.com/doc/refman/en/using-systemd.html Process: 49576 ExecStart=/usr/sbin/mysqld --daemonize --pidfile=/ var/run/mysqld/mysqld.pid $MYSQLD_OPTS (code=exited, status=0/SUCCESS) Process: 49502 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS) Main PID: 49580 (mysqld) CGroup: /system.slice/mysqld.service └─49580 /usr/sbin/mysqld --daemonize --pid-file=/var/run/mysqld/mysqld.pid Nov 05 23:56:23 ppl systemd[1]: Starting MySQL Server... Nov 05 23:56:28 ppl systemd[1]: Started MySQL Server. [root@ppl ~]#
登录后要立即修改密码
[root@ppl ~]# mysql -u root -p 或者 mysql -uroot -p 输入初始密码后 mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '1qazxsw2A@#'; Query OK, 0 rows affected (0.00 sec) mysql>
允许 root 远程登录
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '1qazxsw2A@#' WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql>
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