环境版本：OS版本：RHEL6.6  DB版本：11.2.0.4

问题描述：部署GRID软件的过程中，在最后第一个节点执行root.sh的时候报错，如下：

Adding Clusterware entries to upstart

CRS-2672: Attempting to start 'ora.mdnsd' on 'oss-tt-05'

CRS-2676: Start of 'ora.mdnsd' on 'oss-tt-05' succeeded

CRS-2672: Attempting to start 'ora.gpnpd' on 'oss-tt-05'

CRS-2676: Start of 'ora.gpnpd' on 'oss-tt-05' succeeded

CRS-2672: Attempting to start 'ora.cssdmonitor' on 'oss-tt-05'

CRS-2672: Attempting to start 'ora.gipcd' on 'oss-tt-05'

CRS-2676: Start of 'ora.cssdmonitor' on 'oss-tt-05' succeeded

CRS-2676: Start of 'ora.gipcd' on 'oss-tt-05' succeeded

CRS-2672: Attempting to start 'ora.cssd' on 'oss-tt-05'

CRS-2672: Attempting to start 'ora.diskmon' on 'oss-tt-05'

CRS-2676: Start of 'ora.diskmon' on 'oss-tt-05' succeeded

CRS-2676: Start of 'ora.cssd' on 'oss-tt-05' succeeded

Creation of ASM spfile in disk group failed. Following error occured: ORA-29783: GPnP attribute SET failed with error [CLSGPNP_NOT_FOUND]

Configuration of ASM ... failed

see asmca logs at /app/grid/cfgtoollogs/asmca for details

Did not succssfully configure and start ASM at /app/crs/crs/install/crsconfig_lib.pm line 6912.

/app/crs/perl/bin/perl -I/app/crs/perl/lib -I/app/crs/crs/install /app/crs/crs/install/rootcrs.pl execution failed

问题分析：查看生成的日志文件/app/grid/cfgtoollogs/asmca/asmca-170222PM070007.log

根据日志文件去分析，最终继续排查磁盘组映射设备权限问题，还是没有找到破绽，找了为朋友去metalink上下载下ORA-29783对应报错和版本的DOC文件，从12C的DOC中发现了些许端倪。

猜想难倒是iptables和selinux没关闭，去系统上查看了下，果不其然，好打脸啊。然后关闭了两台机器上的防火墙，关闭gpnpd进程，重新执行root.sh通过。

问题总结：基本的部署环境，准备工作一定要做到位，否则后期乱七八糟的报错绝对是一脸懵逼。