Why RHEL 7.6 with Oracle RAC 11gR2 doesn't have ACFS and why patch 11.2.0.4.201020 (GI PSU 31718723) or patch 11.2.0.4.202307 (GI PSU 35369867) are both failed?

Recently one of my developer colleagues need perform some test on Oracle ACFS thus I have noticed several Oracle RAC test environments of our company and discovered only left *RAC 11g with RHEL7.6* and *RAC 19c with CentOS 7.6*.

But *Oracle MoS Doc ID 1369107.1* reveals that CentOS has not been supported for Oracle ACFS hence I have to play with it on my RAC 11g. Due to 11g RAC is the base version 11.2.0.4.0 and it reported the following error when I installed ACFS module via "acfsroot install" on grid user.

[root_at_racdb01 ~]# cat /etc/redhat-release
> *Red Hat Enterprise Linux Server release 7.6 (Maipo)*
> [root_at_racdb01 ~]#
> [root_at_racdb01 ~]# uname -a
> Linux racdb01 *3.10.0-957.el7.x86_64* #1 SMP Thu Oct 4 20:48:51 UTC 2018
> x86_64 x86_64 x86_64 GNU/Linux
> [root_at_racdb01 ~]#
> [root_at_racdb01 ~]# su - oracle
> Last login: Wed Aug 23 16:27:47 CST 2023 on pts/4
> [oracle_at_racdb01 ~]$
> [oracle_at_racdb01 ~]$ sqlplus -v

> SQL*Plus: Release *11.2.0.4.0* Production

> [oracle_at_racdb01 ~]$ exit
> logout
> [root_at_racdb01 ~]# su - grid
> Last login: Wed Aug 23 13:30:43 CST 2023 on pts/3
> [grid_at_racdb01 ~]$
>
> *[grid_at_racdb01 ~]$ acfsroot installACFS-9459: ADVM/ACFS is not supported
> on this OS version: 'unknown'*
> [grid_at_racdb01 ~]$

Meanwhile *Doc ID 1369107.1* also mentioned that ACFS 11.2.0.4 supported platform for *RHEL 7* need patch to *11.2.0.4.190115*.

ACFS 11.2.0.4 Supported Platforms

> Vendor Version Update/Kernel
> Architecture Bug
> or PSU
> -------------------- -----------
> ------------------------------------------------------------------------------------
> ---------------- ----------------------------------------------------
> *RedHat Linux 7 All Updates, 2.6.32-696.23.1 and later
> 2.6.32 RedHat kernels X86_64 11.2.0.4.190115 (Base Bug
> 28729249)*

You know, 11.2.0.4.201020 or 11.2.0.4.202307 is the super PSU of 1901115, I try to patch one of them on 11g RAC.

*[root_at_racdb01 tmp]# unzip p31718723_112040_Linux-x86-64.zip*

> [grid_at_racdb01 ~]$ echo $ORACLE_HOME
> /u01/app/11.2.0/grid
> [grid_at_racdb01 ~]$
> [grid_at_racdb01 ~]$ exit
> logout
> [root_at_racdb01 tmp]# cd /u01/app/11.2.0/grid/OPatch
> *[root_at_racdb01 OPatch]# ./opatch auto /tmp/31718723*
> Executing /u01/app/11.2.0/grid/perl/bin/perl
> /u01/app/11.2.0/grid/OPatch/crs/patch11203.pl -patchdir /tmp -patchn
> 31718723 -paramfile /u01/app/11.2.0/grid/crs/install/crsconfig_params

> This is the main log file:
> /u01/app/11.2.0/grid/cfgtoollogs/opatchauto2023-08-22_16-13-11.log

> This file will show your detected configuration and all the steps that
> opatchauto attempted to do on your system:
> /u01/app/11.2.0/grid/cfgtoollogs/opatchauto2023-08-22_16-13-11.report.log

> 2023-08-22 16:13:11: Starting Clusterware Patch Setup
> Using configuration parameter file:
> /u01/app/11.2.0/grid/crs/install/crsconfig_params

> *This is the main log file:
> /u01/app/11.2.0/grid/cfgtoollogs/opatchauto2023-08-22_16-13-11.log*

> This file will show your detected configuration and all the steps that
> opatchauto attempted to do on your system:
> /u01/app/11.2.0/grid/cfgtoollogs/opatchauto2023-08-22_16-13-11.report.log

> 2023-08-22 16:13:11: Starting Clusterware Patch Setup
> Using configuration parameter file:
> /u01/app/11.2.0/grid/crs/install/crsconfig_params
> *The opatch minimum version check for patch /tmp/31718723/31537677 failed
> for /u01/app/oracle/product/11.2.0/db_1*
> Opatch version check failed for oracle home
> /u01/app/oracle/product/11.2.0/db_1
> Opatch version check failed
> *ERROR: update the opatch version for the failed homes and retry*

> opatch auto failed.

So weird, I've updated opatch to the latest version *11.2.0.3.43* on both grid and oracle user.

> *[grid_at_racdb01 ~]$ opatch versionOPatch Version: 11.2.0.3.43*

> OPatch succeeded.

>
> *[oracle_at_racdb01 ~]$ opatch versionOPatch Version: 11.2.0.3.43*

> OPatch succeeded.

I've found out the following error from the previously prompt log file.

[root_at_racdb01 tmp]# vi
> /u01/app/11.2.0/grid/cfgtoollogs/opatchauto2023-08-22_16-13-11.log
> ......
> *PatchObject constructor: Input file
> "/tmp/31718723/31537677/17478514/etc/config/actions" or
> "/tmp/31718723/31537677/17478514/etc/config/inventory" does not exist.*
> ......

Could you help me troubleshooting it? Thanks beforehand!

Best Regards
Quanwen Zhao

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