安装Oracle 12.1.0.2 RAC时，第一节点root.sh执行失败，报错信息如下：2016/01/16 22:37:52 CLSRSC-343: Successfully started Oracle Clusterware stack2016/01/16 22:38:02 CLSRSC-180: An error occurred while executing the command '/oracle/grid/12.1.0/bin/oifcfg setif -global en6/132.77.255.0:public en7/192.168.3.0:cluster_interconnect' (error code 1)2016/01/16 22:38:03 CLSRSC-287: FirstNode configuration failedDied at oracle/grid/12.1.0/crs/install/crsinstall.pm line 2398.The command '/oracle/grid/12.1.0/perl/bin/perl -I/oracle/grid/12.1.0/perl/lib -I/oracle/grid/12.1.0/crs/install oracle/grid/12.1.0/crs/install/rootcrs.pl ' execution failed检查网卡配置，实际上已经成功：root@nasdb1:/# oifcfg getifen6 132.77.255.0 global publicen7 192.168.3.0 global cluster_interconnect手工执行oifcfg setif命令测试一下：root@nasdb1:/# oifcfg setif -global en6/132.77.255.0:public en7/192.168.3.0:cluster_interconnectPRIF-15: invalid format for subnetroot@nasdb1:/# echo $?1参考文档root.sh fails with CLSRSC-287 due to: PRIF-15: invalid format for subnet (Doc ID 1933472.1)This is due to the following bug:Bug 19777496 - ROOT.SH FAILED: PRIF-15: INVALID FORMAT FOR SUBNETSolutionThe bug fix is included in 12.1.0.2 GI PSU3, apply/request interim patch 19777496 if needed.The workaround is to change subnet so it won't include 255 in subnet ID, i.e. for this case change from 10.18.255.0 to 10.18.251.0文档提供的解决方案和替代方案都不太容易实现，Patch很大，AIX平台1.5G，打起来也不方便，网络规划也不能改变，于是分析相关脚本寻找其它替代方案。经查，此功能调用过程如下：$GRID_HOME/crs/install/crsinstall.pm中的sub CRSInstall -> sub perform_configNode -> sub configNode ->crsutils.pm中的sub configFirstNode： $success = configFirstNode($DHCP_flag, \@nodes_to_start); if ($success != SUCCESS) { writeCkpt($ckptName, CKPTFAIL); die(dieformat(287)); }crsutils.pm中的sub configFirstNode -> sub setNetworkInterface：setNetworkInterface() || return FAILED;其中setNetworkInterface是这样定义的：sub setNetworkInterface{ my $success = TRUE; my $oifcfg = catfile($CFG->params('ORACLE_HOME'), 'bin', 'oifcfg'); my $networks = oifcfgNetworks(); my @out = system_cmd_capture($oifcfg, "setif -global", $networks); my $rc = shift @out; if ($rc == 0) { trace("$oifcfg setif -global $networks successful"); } else { trace("$oifcfg setif -global $networks failed rc = $rc"); print_error(180, "$oifcfg setif -global $networks", $rc); $success = FALSE; } return $success;}我们在安装过程中发现，尽管root.sh报了错并退出，事实上网卡设置信息已经正确写入(参见前部的oifcfg getif输出)，于是手工修改crsutils.pm中的configFirstNode函数(在运行root.sh之前)绕过此问题：setNetworkInterface() || return FAILED;改为：setNetworkInterface();root.sh尽管仍会有错误信息报出，但脚本仍会继续，oifcfg setif是成功的，root.sh也是成功的。
注：11.2.0.4没有此问题。
