[ERROR]: At least one Oracle inventory check has failed.

E-Business Suite - After Upgrade To 12.2.3 Or 12.2.4 Applying Fs_clone Failed When Checking Oracle Inventory With [ERROR]: At least one Oracle inventory check has failed. (Doc ID 2024269.1)

When using adop phase=fs_clone, the following error is received:

    [ERROR]: At least one Oracle inventory check has failed.
    [WARNING]: Either some of the required entries in /etc/hosts file might be missing (e.g. localhost or hostname) OR the file /etc/hosts could not be read.
   [UNEXPECTED]Error occurred while executing "perl /z01/oracle/EBS1/fs1/EBSapps/appl/ad/12.0.0/patch/115/bin/txkADOPValidations.pl  -contextfile=/z01/oracle/EBS1/fs1/inst/apps/SID_HOST/appl/admin/SID_HOST.xml -patchctxfile=/z01/oracle/EBS1/fs2/inst/apps/SID_HOST/appl/admin/SID_HOST.xml -phase=fs_clone -logloc=/z01/oracle/EBS1/fs_ne/EBSapps/log/adop/8/fs_clone_20150625_170455/SID_HOST -promptmsg=hide"
   [UNEXPECTED]Error 1 occurred while Executing txkADOPValidation script on otis-t1a

CAUSE

/etc/oraInst.loc was corrupted

SOLUTION

1. Create new oraInst.loc file and check it contains correct entry.

2. Re-run adop fs_clone and that will work the validation steps without issues.