[DBT-05509] Failed to connect to the specified database (orcl).

同事在arm上测试19c部署时，发截图给我说dbca建库有告警，无法进行，

Cause- OS Authentication might be disabled for this database (orcl).  
Action Specify a valid sysdba user name and password to connect to the database.

查找到的问题点是：oracle不在dba组内

处理办法：

[root@db ~]# id oracle
uid=1502(oracle) gid=501(oinstall) groups=501(oinstall),54323(oper)
[root@db ~]#   more /etc/group|grep
dba:x:502:
[root@db ~]# usermod -a -G dba oracle
[root@db ~]# id oracle
uid=1502(oracle) gid=501(oinstall) groups=501(oinstall),502(dba),54323(oper)
[root@db ~]# more /etc/group|grep dba
dba:x:502:oracle

20230801更新，报错：PRVF-7566

在应用补丁时，在rac环境也遇到类似问题

grid@db1> cluvfy comp sys -n all -p crs -verbose

。。。。。。。。。。

。。。。。。。。。

Verifying Group Membership: dba ...FAILED
db1: PRVF-7566 : User "grid" does not belong to group "dba" on node "db1"

处理办法-2个节点都执行 

#  usermod -a -G  dba grid