centos下mysql最新版终于安装成功！备份一下几个关键地方_MySQL

CentOS

我本来只是为了搭建简单的LAMP环境，亲自动手，却发现有这么多的问题会发生。(by default7#zbphp.com)

很多地方给的安装Mysql的提示是通过yum一键安装。shell命令如下：

yum install mysqlyum install mysql-serveryum install mysql-devel

但是，这个命令安装的mysql版本很旧，5.1.0x版本的，官网的Mysql已经是 5.6.x版本了。太旧了，记得08年的时候就出了 5.1的版本了。

坚持安装最新版本的，在MYSQL官网下载rpm-.tar安装包，300MB左右。linux64。

[root@localhost mysqlinstall]# ls MySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-devel-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-embedded-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-shared-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-shared-compat-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-test-5.6.19-1.linux_glibc2.5.x86_64.rpm[root@localhost mysqlinstall]# pwd/home/[e-mail]/Downloads/mysqlinstall[root@localhost mysqlinstall]#  

但是按照网上（CSDN博客、blogcn博客）一步步提示来安装但是总是各种问题，各种问题，无法运行。

最后尝试了很多遍终于安装成功，正常运行：

[root@localhost /]# yum remove mysqlLoaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessNo Match for argument: mysqlLoading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.comPackage(s) mysql available, but not installed.No Packages marked for removal[root@localhost /]# yum remove mysql-serverLoaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessResolving Dependencies--> Running transaction check---> Package MySQL-server.x86_64 0:5.6.19-1.linux_glibc2.5 will be erased--> Finished Dependency ResolutionDependencies Resolved================================================================================ Package          Arch       Version                        Repository     Size================================================================================Removing: MySQL-server     x86_64     5.6.19-1.linux_glibc2.5        installed     248 MTransaction Summary================================================================================Remove        1 Package(s)Installed size: 248 MIs this ok [y/N]: yDownloading Packages:Running rpm_check_debugRunning Transaction TestTransaction Test SucceededRunning Transaction  Erasing    : MySQL-server-5.6.19-1.linux_glibc2.5.x86_64                  1/1   Verifying  : MySQL-server-5.6.19-1.linux_glibc2.5.x86_64                  1/1 Removed:  MySQL-server.x86_64 0:5.6.19-1.linux_glibc2.5                                 Complete![root@localhost /]# yum remove MySQL-*Loaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessResolving Dependencies--> Running transaction check---> Package MySQL-devel.x86_64 0:5.6.19-1.linux_glibc2.5 will be erased---> Package MySQL-shared.x86_64 0:5.6.19-1.linux_glibc2.5 will be erased---> Package MySQL-shared-compat.x86_64 0:5.6.19-1.linux_glibc2.5 will be erased--> Processing Dependency: libmysqlclient.so.16()(64bit) for package: perl-DBD-MySQL-4.013-3.el6.x86_64--> Processing Dependency: libmysqlclient.so.16(libmysqlclient_16)(64bit) for package: perl-DBD-MySQL-4.013-3.el6.x86_64--> Running transaction check---> Package perl-DBD-MySQL.x86_64 0:4.013-3.el6 will be erased--> Finished Dependency ResolutionDependencies Resolved================================================================================ Package             Arch   Version                 Repository             Size================================================================================Removing: MySQL-devel         x86_64 5.6.19-1.linux_glibc2.5 installed              17 M MySQL-shared        x86_64 5.6.19-1.linux_glibc2.5 @/MySQL-shared-5.6.19-1.linux_glibc2.5.x86_64                                                                          7.8 M MySQL-shared-compat x86_64 5.6.19-1.linux_glibc2.5 @/MySQL-shared-compat-5.6.19-1.linux_glibc2.5.x86_64                                                                           11 MRemoving for dependencies: perl-DBD-MySQL      x86_64 4.013-3.el6             @base                 338 kTransaction Summary================================================================================Remove        4 Package(s)Installed size: 36 MIs this ok [y/N]: yDownloading Packages:Running rpm_check_debugRunning Transaction TestTransaction Test SucceededRunning Transaction  Erasing    : MySQL-devel-5.6.19-1.linux_glibc2.5.x86_64                   1/4   Erasing    : perl-DBD-MySQL-4.013-3.el6.x86_64                            2/4   Erasing    : MySQL-shared-compat-5.6.19-1.linux_glibc2.5.x86_64           3/4   Erasing    : MySQL-shared-5.6.19-1.linux_glibc2.5.x86_64                  4/4   Verifying  : MySQL-shared-compat-5.6.19-1.linux_glibc2.5.x86_64           1/4   Verifying  : MySQL-devel-5.6.19-1.linux_glibc2.5.x86_64                   2/4   Verifying  : MySQL-shared-5.6.19-1.linux_glibc2.5.x86_64                  3/4   Verifying  : perl-DBD-MySQL-4.013-3.el6.x86_64                            4/4 Removed:  MySQL-devel.x86_64 0:5.6.19-1.linux_glibc2.5                                    MySQL-shared.x86_64 0:5.6.19-1.linux_glibc2.5                                   MySQL-shared-compat.x86_64 0:5.6.19-1.linux_glibc2.5                          Dependency Removed:  perl-DBD-MySQL.x86_64 0:4.013-3.el6                                           Complete![root@localhost /]# yum remove MySQL-*Loaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessNo Match for argument: MySQL-*Loading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.comPackage(s) MySQL-* available, but not installed.No Packages marked for removal[root@localhost /]# whereis mysqlmysql: /usr/lib64/mysql[root@localhost /]# which mysql/usr/bin/which: no mysql in (/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/default7/bin)[root@localhost /]# yum remove MySQL-sharedLoaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessNo Match for argument: MySQL-sharedLoading mirror speeds from cached hostfile * base: mirrors.163.com * extras: mirrors.163.com * updates: mirrors.163.comNo Packages marked for removal[root@localhost /]# whereis mysqlmysql: /usr/lib64/mysql[root@localhost /]# which mysql/usr/bin/which: no mysql in (/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/default7/bin)[root@localhost /]# yum remove MySQL-testLoaded plugins: fastestmirror, refresh-packagekit, securitySetting up Remove ProcessNo Match for argument: MySQL-testLoading mirror speeds from cached hostfile * base: mirrors.btte.net * extras: mirrors.btte.net * updates: mirrors.btte.netPackage(s) MySQL-test available, but not installed.No Packages marked for removal[root@localhost /]# clear

其实我一直不断的重新安装，总是问题，无法启动或者报错，原因在与第一次安装步骤不正确，然后接下来不断的重装。

但是并没有彻底卸载干净。rpm -e Mysql 这个似乎区分大小写，而我一开始直接删除文件夹来卸载，后来用 rpm -e -nodeps mysql来卸载，但是还是有残留。

最后是用的yum remove mysql ,mysql-server,mysql-shared 来卸载，为了卸载干净，之后，将所有文件夹中有mysql的删除掉。然后再重新安装。

[root@localhost mysqlinstall]# lsMySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-devel-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-embedded-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-shared-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-shared-compat-5.6.19-1.linux_glibc2.5.x86_64.rpmMySQL-test-5.6.19-1.linux_glibc2.5.x86_64.rpm[root@localhost mysqlinstall]# rpm -ivh MySQL-server-*.rpmPreparing...                ########################################### [100%]   1:MySQL-server           ########################################### [100%][root@localhost mysqlinstall]# rpm -ivh MySQL-client-*.rpmPreparing...                ########################################### [100%]   1:MySQL-client           ########################################### [100%][root@localhost mysqlinstall]# rpm -ivh MySQL-devel-*.rpmPreparing...                ########################################### [100%]   1:MySQL-devel            ########################################### [100%][root@localhost mysqlinstall]# service mysql status ERROR! MySQL is not running[root@localhost mysqlinstall]# service mysql startStarting MySQL.. SUCCESS! 

修改设置密码，原始密码在/root/这个文件夹里面，ls -a可以看到一个mysql的文件，里面有原始密码：

mysql> show databases;ERROR 1820 (HY000): You must SET PASSWORD before executing this statementmysql> select user();ERROR 1820 (HY000): You must SET PASSWORD before executing this statementmysql> set password=password('zbphp.com');Query OK, 0 rows affected (0.00 sec)mysql> show user();ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'user()' at line 1mysql> select user();+----------------+| user()         |+----------------+| root@localhost |+----------------+1 row in set (0.00 sec)mysql> show databases;+--------------------+| Database           |+--------------------+| information_schema || mysql              || performance_schema || test               |+--------------------+4 rows in set (0.01 sec)mysql> select version();+-----------+| version() |+-----------+| 5.6.19    |+-----------+1 row in set (0.00 sec)mysql>