本文总结与归纳了平常遇到的一些关于Oracle 18c的错误以及处理方法，会不定期的进行更新。
1、dbca Fails With PRCR-1006 PRCR-1071 CRS-2566
这里的asm环境使用了Oracle ASM Filter Driver新特性。AFD设备的acl默认属主为grid:asmadmin，如下图红色箭头所指：
当使用dbca建库时，报如下错误：
PRCR-1006 : Failed to add resource ora.orcl.db for orcl
PRCR-1071 : Failed to register or update resource ora.orcl.db
CRS-2566: User 'oracle' does not have sufficient permissions to operate on resource 'ora.driver.afd' which is part of the dependency specification.使用如下命令更改afd设备的acl属主为grid:oinstall即可。
[grid@db01 ~]$ crsctl modify resource ora.driver.afd -attr "ACL='owner:grid:rwx,pgrp:oinstall:r-x,other::r--,user:grid:r-x' " -init
2、CRS-4995：The command 'Modify resource' is invalid in crsctl
在11g r2环境下，修改standalone模式下的数据库实例自启动，使用下面的命令即可：
[grid@db01 ~]$ crsctl modify resource ora.cdb.db -attr "AUTO_START=1" 但是，在12c以后，使用上述命令会报错，如下：
[grid@db01 ~]$ crsctl modify resource ora.cdb.db -attr "AUTO_START=1"
CRS-4995: The command 'Modify resource' is invalid in crsctl. Use srvctl for this command.这里就需要在后面加-unsupported参数，如下：
[grid@db01 ~]$ crsctl modify resource ora.cdb.db -attr "AUTO_START=1" -unsupported3、重新安装ACFS驱动
在Oracle linux下，如果使用了acfs特性，只要安装新的内核，重启系统后，acfs驱动会失效，从而导致acfs相关功能失效。本环境就是因为安装了新内核导致失效，使用下面的命令查不到任何acfs模块信息：
[root@db01 ~]# lsmod |grep oracle
oracleafd 212992 1使用下面的命令，重新安装驱动：
[root@db01 ~]# /u01/app/18.0.0/grid/bin/acfsroot install
ACFS-9300: ADVM/ACFS distribution files found.
ACFS-9314: Removing previous ADVM/ACFS installation.
The service command supports only basic LSB actions (start, stop, restart, try-restart, reload, force-reload, status). For other actions, please try to use systemctl.
ACFS-9315: Previous ADVM/ACFS components successfully removed.
ACFS-9294: updating file /etc/sysconfig/oracledrivers.conf
ACFS-9307: Installing requested ADVM/ACFS software.
ACFS-9308: Loading installed ADVM/ACFS drivers.
ACFS-9321: Creating udev for ADVM/ACFS.
ACFS-9323: Creating module dependencies - this may take some time.
ACFS-9154: Loading 'oracleoks.ko' driver.
ACFS-9154: Loading 'oracleadvm.ko' driver.
ACFS-9154: Loading 'oracleacfs.ko' driver.
ACFS-9327: Verifying ADVM/ACFS devices.
ACFS-9156: Detecting control device '/dev/asm/.asm_ctl_spec'.
ACFS-9156: Detecting control device '/dev/ofsctl'.
ACFS-9309: ADVM/ACFS installation correctness verified.
ACFS-9294: updating file /etc/sysconfig/oracledrivers.conf
[root@db01 ~]# lsmod |grep oracle
oracleacfs 5431296 0
oracleadvm 1110016 0
oracleoks 716800 2 oracleacfs,oracleadvm
oracleafd 212992 14、CRS-6706: Oracle Clusterware Release patch level ('nnn') does not match Software patch level ('mmm')
今天在安装18c的补丁时，由于磁盘空间不足导致失败，从而引起grid启动报错，如下：
[root@db01 ~]# /u01/app/18.0.0/grid/bin/crsctl start has
CRS-6706: Oracle Clusterware Release patch level ('4197789622') does not match Software patch level ('3794151718'). Oracle Clusterware cannot be started.
CRS-4000: Command Start failed, or completed with errors.使用下面的命令查看当前补丁信息：
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[root@db01 ~]# /u01/app/18.0.0/grid/bin/kfod op=patches
---------------
List of Patches
===============
27908644
27923415
28090523
28090553
28090557
28256701
28435192
28547619
28822489
28864593
28864607
29230887
29263354
29302264
[root@db01 ~]# /u01/app/18.0.0/grid/bin/kfod op=patchlvl
-------------------
Current Patch level
===================
419778962212c以后，在这样的情况下，也不能进行回滚操作，只能进行补丁信息同步，如下：
[root@db01 ~]# /u01/app/18.0.0/grid/crs/install/roothas.sh -unlock
Using configuration parameter file: /u01/app/18.0.0/grid/crs/install/crsconfig_params
The log of current session can be found at:
/u01/app/18.0.0/crsdata/db01/crsconfig/haunlock__2019-04-17_02-17-15PM.log
2019/04/17 14:17:26 CLSRSC-347: Successfully unlock /u01/app/18.0.0/grid
[root@db01 ~]# /u01/app/18.0.0/grid/crs/install/roothas.sh -postpatch
Using configuration parameter file: /u01/app/18.0.0/grid/crs/install/crsconfig_params
The log of current session can be found at:
/u01/app/18.0.0/crsdata/db01/crsconfig/hapatch_2019-04-17_02-18-04PM.log
2019/04/17 14:18:07 CLSRSC-329: Replacing Clusterware entries in file 'oracle-ohasd.service'
2019/04/17 14:21:49 CLSRSC-672: Post-patch steps for patching GI home successfully completed.12c和18c的roothas.sh参数有区别，具体以帮助文件为准。