RAC安装时出现PRKC-1024错误怎么办

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Clusterware安装到最后，执行root.sh时， 始终过不去， 错误信息如下：

PRKC-1024 : Invalid netmask: eth0
add nodeapps -n zbxdb1 -A zbxdb1-vip//eth0 on node=zbxdb1 ... failed
Failed to add  Nodeapps at /oracle/app/11.2.0/grid/crs/install/crsconfig_lib.pm line 9373.
/oracle/app/11.2.0/grid/perl/bin/perl -I/oracle/app/11.2.0/grid/perl/lib -I/oracle/app/11.2.0/grid/crs/install /oracle/app/11.2.0/grid/crs/install/rootcrs.pl execution failed

最开始把问题定位在网卡上。但是修改网卡配置，ifup, ifdown, systemctl restart network始终未能解决问题

静下心来，仔细看日志：
发现有这么一行：
Using configuration parameter file: /oracle/app/11.2.0/grid/crs/install/crsconfig_params

于是看了一下这个参数文件：


怪不得老是出现问题:

手动修改参数文件：
NEW_NODEVIPS='zbxdb1-vip/255.255.255.0/eth0,zbxdb2-vip/255.255.255.0/eth0'
重新执行root.sh
居然成功了

以下是完整错误日志：

[grid@zbxdb1 ~]$ cat /oracle/app/11.2.0/grid/install/root_zbxdb1_2018-05-08_16-46-15.log
PerfORMing root user operation for Oracle 11g

The following environment variables are set as:
    ORACLE_OWNER= grid
    ORACLE_HOME=  /oracle/app/11.2.0/grid
   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 script.
Now product-specific root actions will be performed.
Using configuration parameter file: /oracle/app/11.2.0/grid/crs/install/crsconfig_params
User ignored Prerequisites during installation
Installing Trace File Analyzer
PRKC-1024 : Invalid netmask: eth0
add nodeapps -n zbxdb1 -A zbxdb1-vip//eth0 on node=zbxdb1 ... failed
Failed to add  Nodeapps at /oracle/app/11.2.0/grid/crs/install/crsconfig_lib.pm line 9373.
/oracle/app/11.2.0/grid/perl/bin/perl -I/oracle/app/11.2.0/grid/perl/lib -I/oracle/app/11.2.0/grid/crs/install /oracle/app/11.2.0/grid/crs/install/rootcrs.pl execution failed

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