centos使用rar解压文件时错误解决

转载 http://www.2cto.com/os/201305/207590.html
[CentOS]安装软件：/lib/ld-linux.so.2: bad ELF interpreter解决
环境：
[orangle@localhost Downloads]$ uname -m&&uname -r
x86_64
2.6.32-220.el6.x86_64
[orangle@localhost Downloads]$ cat /etc/redhat-release
CentOS release 6.2 (Final)
****************************************************************************************
使用的时候出现一个错误
bash: /usr/local/bin/rar: /lib/ld-linux.so.2: bad ELF interpreter: No such file or directory
是因为64位系统中安装了32位程序
解决方法：yum install glibc.i686
重新安装以后还有如下类系错误 再继续安装包
error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
再执行命令 yum install libstdc++.so.6

转载 http://www.linuxidc.com/Linux/2013-04/82494.htm
安装libstdc++.so.6时有时候还会缺少依赖，如下

当在CentOS 6.2下执行某些命令时，有缺少共享库的报错：
error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
解决办法：
1、执行命令: yum whatprovides libstdc++.so.6, 然后会提示哪个安装包有这个库文件如下：
[root@localhost ~]# yum whatprovides libstdc++.so.6
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, kabi, presto, refresh-packagekit, security, tmprepo, verify,
              : versionlock
Loading support for CentOS kernel ABI
Loading mirror speeds from cached hostfile
  * base: centos.ustc.edu.cn
  * centosplus: centos.ustc.edu.cn
  * contrib: centos.ustc.edu.cn
  * extras: centos.ustc.edu.cn
  * updates: centos.ustc.edu.cn
libstdc++-4.4.7-3.el6.i686 : GNU Standard C++ Library
Repo        : base
Matched from:
Other      : libstdc++.so.6
2、然后执行：yum install libstdc++-4.4.7-3.el6.i686

转载  http://www.liumin.name/20100608/centos-5-yum-install-problem/
centos安装新软件时会出现软件冲突问题
解决方法如下：
yum clean all
rpm --rebuilddb
yum update