报错提示

某客户安装grid 11.2.0.4 时报错如下：

[INS-O6006] Passwordless SSH connectivity not set up between thefollowing nodeis): [rac-1].

Cause - Either passwordless SSH connectivity is not setup between specified node(s) or they are not reachable. Refer to the logs for more details.  Action - Refer to the logs for more details or contact Oracle Support Services.

• 查看日志

 vi /tmp/OraInstall2025-07-10_05-32-31PM/installActions2025-07-10_05-32-31PM.log
WARNING: Failed while executing remote commands to check SSH connectivity to other nodes..
Refer associated stacktrace #oracle.install.driver.oui.OUISSHSupportManager:489
INFO: Source Node: rac-1  Target Node: rac-1
INFO: Exception: null
INFO: Status log: oracle.install.driver.oui.OUISSHSupportManager$SSHSetupVerificationCommand: 0|ssh: Could not resolve hostname  -o FallBackToRsh=no : Temporary failure in name resolution :failed

INFO: Source Node: rac-1  Target Node: rac-2
INFO: Exception: null
INFO: Status log: oracle.install.driver.oui.OUISSHSupportManager$SSHSetupVerificationCommand: 0|ssh: Could not resolve hostname  -o FallBackToRsh=no : Temporary failure in name resolution :failed

INFO: Remote node(s) not configured for passwordless SSH connectivity : [rac-1]
INFO: Details about the list of remote node(s), not configured for passwordless SSH connectivity
------------------------
 NODE   REMOTE NODES
------------------------
 rac-1  [rac-1, rac-2]
------------------------

确认hostname、hosts名字是否为大写

• 11.2.0.4 runInstaller hostname hosts大写存在bug(文档 ID 1597212.1)，需要改成小写

BUG 17666448 - INS-06006 OCCURS IF HOSTNAME IS IN CAPITAL LETTERS FOR GI INSTALLATION  
BUG 17675476 - PASSWORDLESS SSH CONNECTIVITY NOT SET UP BETWEEN THE FOLLOWING NODES

解决方法：

linux6调整方式:
修改/etc/hosts 和/etc/hostname并重启
linux7可尝试使用：

[root@rac1 ~]# hostnamectl set-hostname rac1
调整hostname

且
手动修改

vi /etc/hosts