问题环境：
二进制安装MySQL5.6，mysql-5.6.30-linux-glibc2.5-i686.tar.gz
在进行初始化脚本时，报缺包错误。
[root@master mysql]# ./scripts/mysql_install_db --user=mysql --basedir=/opt/mysql --datadir=/data/my3306/data --force
/opt/mysql/bin/my_print_defaults: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory
Installing MySQL system tables.../opt/mysql/bin/mysqld: error while loading shared libraries: libstdc++.so.6: cannot open shared object file: No such file or directory按要求安装相应包
[root@master scripts]# yum -y install libstdc++.so.6
Loaded plugins: fastestmirror, refresh-packagekit,
: security
Setting up Install Process
Loading mirror speeds from cached hostfile
* base: mirrors.aliyun.com
* extras: mirrors.aliyun.com
* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package libstdc++.i686 0:4.4.7-23.el6 will be installed
--> Processing Dependency: libgcc_s.so.1(GLIBC_2.0) for package: libstdc++-4.4.7-23.el6.i686
--> Processing Dependency: libgcc_s.so.1(GCC_4.2.0) for package: libstdc++-4.4.7-23.el6.i686
--> Processing Dependency: libgcc_s.so.1(GCC_3.3) for package: libstdc++-4.4.7-23.el6.i686
--> Processing Dependency: libgcc_s.so.1(GCC_3.0) for package: libstdc++-4.4.7-23.el6.i686
--> Processing Dependency: libgcc_s.so.1 for package: libstdc++-4.4.7-23.el6.i686
--> Running transaction check
---> Package libgcc.i686 0:4.4.7-23.el6 will be installed
--> Finished Dependency Resolution
Error: Multilib version problems found. This often means that the root
cause is something else and multilib version checking is just
pointing out that there is a problem. Eg.:
1. You have an upgrade for libstdc++ which is missing some
dependency that another package requires. Yum is trying to
solve this by installing an older version of libstdc++ of the
different architecture. If you exclude the bad architecture
yum will tell you what the root cause is (which package
requires what). You can try redoing the upgrade with
--exclude libstdc++.otherarch ... this should give you an error
message showing the root cause of the problem.
2. You have multiple architectures of libstdc++ installed, but
yum can only see an upgrade for one of those arcitectures.
If you don‘t want/need both architectures anymore then you
can remove the one with the missing update and everything
will work.
3. You have duplicate versions of libstdc++ installed already.
You can use "yum check" to get yum show these errors.
...you can also use --setopt=protected_multilib=false to remove
this checking, however this is almost never the correct thing to
do as something else is very likely to go wrong (often causing
much more problems).
Protected multilib versions: libstdc++-4.4.7-23.el6.i686 != libstdc++-4.4.7-17.el6.x86_64还是不可以，百度上查找了一下https://blog.csdn.net/mmake1994/article/details/81198519这也是一种办法但是没有解决我的问题。
[root@master mysql]# yum -y reinstall libaio*重新安装可以。