Linux操作系统Java环境搭建常见问题

问题1：重置centos系统

WARNING! The remote SSH server rejected X11 forwarding request.

解决方案：vim /etc/ssh/sshd_config设置 X11Forwarding yes，然后安装xorg-x11-xauth，yum install xorg-x11-xauth，执行上述操作之后重新连接服务器，这时候你会发现警告消失了，但是会看到/usr/bin/xauth: file /root/.Xauthority does not exist，这是由于/root/目录下没有.Xauthority文件，只要重新使用xshell连接服务器即可，这是服务器将自动创建.Xauthority文件

问题2：安装JDK

-bash: /usr/local/software/jdk1.7.0_71/bin/java: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory

解决方案：yum install glibc.i686

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问题3：安装MySQL

error: Failed dependencies:
	libaio.so.1 is needed by MySQL-server-5.6.22-1.el6.i686
	libaio.so.1(LIBAIO_0.1) is needed by MySQL-server-5.6.22-1.el6.i686
	libaio.so.1(LIBAIO_0.4) is needed by MySQL-server-5.6.22-1.el6.i686
	libgcc_s.so.1 is needed by MySQL-server-5.6.22-1.el6.i686
	libgcc_s.so.1(GCC_3.0) is needed by MySQL-server-5.6.22-1.el6.i686
	libgcc_s.so.1(GLIBC_2.0) is needed by MySQL-server-5.6.22-1.el6.i686
	libstdc++.so.6 is needed by MySQL-server-5.6.22-1.el6.i686
	libstdc++.so.6(CXXABI_1.3) is needed by MySQL-server-5.6.22-1.el6.i686
	libstdc++.so.6(GLIBCXX_3.4) is needed by MySQL-server-5.6.22-1.el6.i686
	libstdc++.so.6(GLIBCXX_3.4.11) is needed by MySQL-server-5.6.22-1.el6.i686
	libstdc++.so.6(GLIBCXX_3.4.9) is needed by MySQL-server-5.6.22-1.el6.i686

解决方案：

yum install libaio.so.1

yum update libstdc++-4.8.5-11.el7
yum update libgcc-4.8.5-11.el7.x86_64

yum install libgcc_s.so.1
yum install libstdc++.so.6

问题4：安装MySQL时出现不兼容

root@localhost ~]# rpm -ivh MySQL-server-5.5.24-1.linux2.6.x86_64.rpm 
Preparing...                ########################################### [100%]
        file /usr/share/mysql/charsets/README from install of MySQL-server-5.5.24-1.linux2.6.x86_64 conflicts with file from package mysql-libs-5.1.61-1.el6_2.1.x86_64
        file /usr/share/mysql/charsets/Index.xml from install of MySQL-server-5.5.24-1.linux2.6.x86_64 conflicts with file from package mysql-libs-5.1.61-1.el6_2.1.x86_64
        file /usr/share/mysql/charsets/armscii8.xml from install of MySQL-server-5.5.24-1.linux2.6.x86_64 conflicts with file from package mysql-libs-5.1.61-1.el6_2.1.x86_64
        file /usr/share/mysql/charsets/ascii.xml from install of MySQL-server-5.5.24-1.linux2.6.x86_64 conflicts with file from package mysql-libs-5.1.61-1.el6_2.1.x86_64
        file /usr/share/mysql/charsets/cp1250.xml from install of MySQL-server-5.5.24-1.linux2.6.x86_64 conflicts with file from package mysql-libs-5.1.61-1.el6_2.1.x86_64

解决方案：原因是系统已经安装了其他版本的mysql-libs包和mysql数据库文件导致不兼容，要删除mysql-libs，yum remove mysql-libs

问题5：安装MySQL出现

warning: user mysql does not exist - using root
warning: group mysql does not exist - using root

解决方案：yum install -y perl-Module-Install.noarch

问题6：运行service mysql start

Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/gaoyangpc.pid).

解决方案：因为以前存在的MySQL卸载不干净导致，必须重新安装

rpm -e MySQL-server-5.6.22-1.el6.i686
rpm -e MySQL-client-5.6.22-1.el6.i686

cd /var/lib/
rm -rf mysql/