[INS-30069] Installer has detected that user “oracle” does not belong to the OS group “asmdba” on the following nodes [dc01x02]. These nodes will be ignored and not participate in the configured Grid Infrastructure.
Cause:
This installation error happened due to lack of proper group for managing the asm operations. You can still ignore this error but to overcome this , do the next step
Workaround:
As the group ASMDBA was missing in node 2, add the group!
[root@dc01x02 oracle]# groupadd asmdba
[root@dc01x02 oracle]# usermod -G asmdba,backupdba,dba,oinstall,racdba,kmdba,dgdba oracle