在OEL 6.3上搭建一台11G的RAC测试环境，在最后执行root.sh脚本的时候遇到libcap.so.1: cannot open shared object file: No such file or directory 错误。
如下所示：
[root@rac1 11.2.0]# /g01/oraInventory/orainstRoot.sh
Changing permissions of /g01/oraInventory.
Adding read,write permissions for group.
Removing read,write,execute permissions for world.
Changing groupname of /g01/oraInventory to oinstall.
The execution of the script is complete.
[root@rac1 11.2.0]# /g01/app/11.2.0/grid/root.sh
Running Oracle 11g root.sh script...
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /g01/app/11.2.0/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.sh script.
Now product-specific root actions will be performed.
2013-10-10 03:41:35: Parsing the host name
2013-10-10 03:41:35: Checking for super user privileges
2013-10-10 03:41:35: User has super user privileges
Using configuration parameter file: /g01/app/11.2.0/grid/crs/install/crsconfig_params
Creating trace directory
/g01/app/11.2.0/grid/bin/clscfg.bin: error while loading shared libraries: libcap.so.1: cannot open shared object file: No such file or directory
Failed to create keys in the OLR, rc = 127, 32512
OLR configuration failed
查询了一下，发现是由于缺少包导致的。
在2个节点上重新安装上此包。
[root@rac1 Packages]# rpm -ivh compat-libcap1-1.10-1.x86_64.rpm
warning: compat-libcap1-1.10-1.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID ec551f03: NOKEY
Preparing... ########################################### [100%]
1:compat-libcap1 ########################################### [100%]
删除以前的CRS配置。
[root@rac1 ~]# perl $GRID_HOME/crs/install/rootcrs.pl -verbose -deconfig -force
2013-10-10 04:01:41: Parsing the host name
2013-10-10 04:01:41: Checking for super user privileges
2013-10-10 04:01:41: User has super user privileges
Using configuration parameter file: /g01/app/11.2.0/grid/crs/install/crsconfig_params
PRCR-1035 : Failed to look up CRS resource ora.cluster_vip.type for 1
PRCR-1068 : Failed to query resources
Cannot communicate with crsd
PRCR-1070 : Failed to check if resource ora.gsd is registered
Cannot communicate with crsd
PRCR-1070 : Failed to check if resource ora.ons is registered
Cannot communicate with crsd
PRCR-1070 : Failed to check if resource ora.eons is registered
Cannot communicate with crsd
ADVM/ACFS is not supported on oraclelinux-release-6Server-3.0.2.x86_64
ACFS-9201: Not Supported
Failure at scls_scr_setval with code 8
Internal Error Information:
Category: -2
Operation: failed
Location: scrsearch3
Other: id doesnt exist scls_scr_setval
System Dependent Information: 2
CRS-4544: Unable to connect to OHAS
CRS-4000: Command Stop failed, or completed with errors.
error: package cvuqdisk is not installed
Successfully deconfigured Oracle clusterware stack on this node
再次执行root.sh脚本，又遇到了ohasd failed to start at /g01/app/11.2.0/grid/crs/install/rootcrs.pl line 443 错误。
[root@rac1 ~]# /g01/app/11.2.0/grid/root.sh
Running Oracle 11g root.sh script...
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /g01/app/11.2.0/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 ...
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.sh script.
Now product-specific root actions will be performed.
2013-10-10 04:02:57: Parsing the host name
2013-10-10 04:02:57: Checking for super user privileges
2013-10-10 04:02:57: User has super user privileges
Using configuration parameter file: /g01/app/11.2.0/grid/crs/install/crsconfig_params
LOCAL ADD MODE
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
root wallet
root wallet cert
root cert export
peer wallet
profile reader wallet
pa wallet
peer wallet keys
pa wallet keys
peer cert request
pa cert request
peer cert
pa cert
peer root cert TP
profile reader root cert TP
pa root cert TP
peer pa cert TP
pa peer cert TP
profile reader pa cert TP
profile reader peer cert TP
peer user cert
pa user cert
Adding daemon to inittab
CRS-4124: Oracle High Availability Services startup failed.
CRS-4000: Command Start failed, or completed with errors.
ohasd failed to start: Inappropriate ioctl for device
ohasd failed to start at /g01/app/11.2.0/grid/crs/install/rootcrs.pl line 443.
网上搜了一下，竟然是ORACLE 的BUG。
解决方法竟然是出现pa user cert的时候在另一个窗口不停的执行下面的命令，直到命令执行成功，真是变态啊。
/bin/dd if=/var/tmp/.oracle/npohasd of=/dev/null bs=1024 count=1
具体可以参考：
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