clscfg.bin: error while loading shared libraries: libcap.so.1:

RAC安装过程中，安装GI，运行root.sh脚本时报如下错误：

# /u01/app/11.2./grid/root.sh
Running Oracle 11g root script...

The following environment variables are set as:
    ORACLE_OWNER= oragrid
    ORACLE_HOME=  /u01/app/11.2./grid

Enter the full pathname of the local bin directory: [/usr/local/bin]:
   Copying dbhome to /usr/local/bin ...
   Copying oraenv to /usr/local/bin ...
   Copying coraenv to /usr/local/bin ...

Creating /etc/oratab file...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root script.
Now product-specific root actions will be performed.
Using configuration parameter file: /u01/app/11.2./grid/crs/install/crsconfig_params
Creating trace directory
/u01/app/11.2./grid/bin/clscfg.bin: error while loading shared libraries: libcap.so.: cannot open shared object file: No such file or directory
Failed to create keys in the OLR, rc = ,
Failed to create keys in the OLR at /u01/app/11.2./grid/crs/install/crsconfig_lib.pm line .
/u01/app/11.2./grid/perl/bin/perl -I/u01/app/11.2./grid/perl/lib -I/u01/app/11.2./grid/crs/install /u01/app/11.2./grid/crs/install/rootcrs.pl execution failed

解决方法（所有节点都要安装）：

]# yum install compat-libcap1-1.10-.x86_64.rpm
 warning: compat-libcap1-1.10-.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY
 Preparing...                ########################################### [%]
    :compat-libcap1         ########################################### [%]