Recently for multiple customers I ran into issues while running "adop phase=fs_clone".
The error message itself is a bit strange, the error message is as follows:
/u01/install/APPS/fs_ne/EBSapps/log/adop/52/20240116_210955/fs_clone/prodebsapp01/TXK_SYNC_create/txkADOPPreparePhaseSynchronize.log:
-------------------------------------------------------------------------------------------------------------------------------------
Lines #(424-426):
TIME : Tue Jan 16 22:02:45 2024
FUNCTION: main::runFSCloneApply [ Level 1 ]
ERRORMSG: /u01/install/APPS/fs2/EBSapps/comn/adopclone_prodebsapp01/bin/adclone.pl did not go through successfully.
/u01/install/APPS/fs_ne/EBSapps/log/adop/52/20240116_210955/fs_clone/prodebsapp01/TXK_SYNC_create/fsclone_apply/FSCloneApplyAppsTier_01162152.log:
--------------------------------------------------------------------------------------------------------------------------------------------------
Lines #(1176-1180):
ERROR: RC-50410: Fatal: OUI Registration failed with an Abnormal Termination error during call from ouicli.pl. Please check the log file /u01/install/APPS/fs1/inst/apps/UPG_prodebsapp01/admin/log/ohclone.log for more details.
Raised by oracle.apps.ad.clone.ApplyAppsTechStack
Lines #(1179-1183):
Raised by oracle.apps.ad.clone.ApplyAppsTechStack
WARNING: RC-50208: Warning: Exception in method deepOUICheck
instantiate file:
Lines #(1226-1233):
AutoConfig is exiting with status 1
ERROR: RC-50013: Fatal: Instantiate driver did not complete successfully.
/u01/install/APPS/fs1/EBSapps/10.1.2/appsutil/driver/regclone.drv
ERROR: RC-50004: Fatal: Error occurred in ApplyAppsTechStack:
RC-50013: Fatal: Failed to instantiate driver /u01/install/APPS/fs1/EBSapps/10.1.2/appsutil/driver/regclone.drv
START: Inside exitClone....Analyzing the error further I realized that this is around the (rather old) version of Oracle Installer trying to find the available space on the disk. With E-Business Suite running on OCI File Storage Service (FSS) this amount of available disk storage is basically "unlimited"; df reveals 8 Exabyte of free storage.
df showing tremendous amount of free storage
There are two solutions for this:
The support note "Applying the Latest AD and TXK Release Update Packs to Oracle E-Business Suite Release 12.2" (Doc ID 1617461.1) suggests to first apply a patch and then set the new parameter s_forms_oui_tmpdir to a directory with e.g. less than 200 GB of free storage space. By default that is set to /tmp which should be fine since it isn't on FSS.
As an alternative you can set the free space reported by FSS within the OCI console as described over there: https://docs.oracle.com/en-us/iaas/Content/File/Tasks/change-file-system-size-mt.htm

Modified "Reported size" and "Reported inodes" in OCI Console
We went for the second approach since it does not require to apply a patch and set more parameters. Setting the size to 600 GB worked both to
improve the reporting of space used in our checkmk based monitoring tool
solve the issue described above.
On one environment I still ran into issues with 600 GiB/Gil; there 490 worked.