执行/runcluvfy.sh stage -pre crsinst -n 11grac1,11grac2 -fixup -verbose出错误点： Checking consistency of file "/etc/resolv.conf" across nodes Checking the file "/etc/resolv.conf" to make sure only one of domain and search entries is defined File "/etc/resolv.conf" does not have both domain and search entries defined Checking if domain entry in file "/etc/resolv.conf" is consistent across the nodes... domain entry in file "/etc/resolv.conf" is consistent across nodes Checking if search entry in file "/etc/resolv.conf" is consistent across the nodes... search entry in file "/etc/resolv.conf" is consistent across nodes Checking DNS response time for an unreachable node Node Name Status ------------------------------------ ------------------------ 11grac2 failed 11grac1 failed PRVF-5637 : DNS response time could not be checked on following nodes: 11grac2,11grac1 File "/etc/resolv.conf" is not consistent across nodes 问题： nslookup some-non-existent-host 出现错误 [root@11grac2 ~]# nslookup scan.rac.com Server: 192.168.2.92 Address: 192.168.2.92#53 Name: scan.rac.com Address: 192.168.2.54 Name: scan.rac.com Address: 192.168.2.55 [root@11grac2 ~]# echo $? 0 [root@11grac2 ~]# nslookup 11grac1 Server: 192.168.2.92 Address: 192.168.2.92#53 ** server can't find 11grac1: NXDOMAIN [root@11grac2 ~]# echo $? 1 解决办法： 引用：https://kr.forums.oracle.com/forums/thread.jspa?threadID=2464247 http://logicalchaos.org/blog/2012/12/cluvfy-prvf-5637-dns-response-time-could-not-be-checked/ Here's the problem. Oracle verifies the FQDN of all nodes are in DNS via nslookup: $ nslookup <node1's fqdn> etc. It also verifies a bogus node isn't in DNS via nslookup: /usr/bin/nslookup unknown-not-reachable-node ... ** server can't find unknown-not-reachable-node: NXDOMAIN Here's the problem. OEL 5.8 (incorrectly) returns exit code of 0 in the above failing condition. OEL 6.3 (correctly) returns 1 in that condition. Looking at the bind-utils RPM changelog, this nsloookup change went in for version 9.8.2-0.9.rc1. * Mon May 07 2012 Adam Tkac <atkac redhat com> 32:9.8.2-0.9.rc1 - fix race condition in the resolver module - nslookup: return non-zero exit code when fail to get answer (#816164) In OEL 5.8, bind-utils RPM is version 9.3.6-20.P1.el5. Doesn't have the fix. In OEL 6.3, bind-utils RPM version is 9.8.2-0.10.rc1.el6. Has the fix. Oracle GRID installer mistakenly interprets OEL 6.3's exit code of 1 as a problem. When in fact, it's the expected behaviour for a failed DNS lookup. If I trick nslookup into returning the (incorrect) OEL 5.8 behavior, then the Oracle GRID installer will install. # mv /usr/bin/nslookup /usr/bin/nslookup.orig # echo '#!/bin/bash /usr/bin/nslookup.orig $* exit 0' > /usr/bin/nslookup # chmod a+x nslookup Now when I run the Oracle GRID installer, it installs. Also cluvfy.sh succeeds too.