Patch 19518079 rollback (pdb CDB$ROOT): WITH ERRORS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19518079/18024100/19518079_rollback_ENT12C_CDBROOT_2015Feb06_17_47_56.log (errors) Error at line 27: SP2-0310: unable to open file "/opt/app/oracle/product/12.1.0/dbhome_2/sqlpatch/19518079/18024100/rollback_files/rdbms/admin/catmmig.sql" Patch 19877336 apply (pdb CDB$ROOT): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19877336/18313828/19877336_apply_ENT12C_CDBROOT_2015Feb06_17_47_56.log (no errors) Patch 19769480 apply (pdb CDB$ROOT): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19769480/18350083/19769480_apply_ENT12C_CDBROOT_2015Feb06_17_49_33.log (no errors) Patch 19518079 rollback (pdb PDB$SEED): WITH ERRORS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19518079/18024100/19518079_rollback_ENT12C_PDBSEED_2015Feb06_17_49_40.log (errors) Error at line 57: SP2-0310: unable to open file "/opt/app/oracle/product/12.1.0/dbhome_2/sqlpatch/19518079/18024100/rollback_files/rdbms/admin/catmmig.sql" Patch 19877336 apply (pdb PDB$SEED): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19877336/18313828/19877336_apply_ENT12C_PDBSEED_2015Feb06_17_49_40.log (no errors) Patch 19769480 apply (pdb PDB$SEED): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19769480/18350083/19769480_apply_ENT12C_PDBSEED_2015Feb06_17_51_28.log (no errors) Patch 19877336 apply (pdb PDB12C): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19877336/18313828/19877336_apply_ENT12C_PDB12C_2015Feb06_17_51_33.log (no errors) Patch 19769480 apply (pdb PDB12C): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19769480/18350083/19769480_apply_ENT12C_PDB12C_2015Feb06_17_53_00.log (no errors) Patch 19877336 apply (pdb PDB12CDI): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19877336/18313828/19877336_apply_ENT12C_PDB12CDI_2015Feb06_17_51_33.log (no errors) Patch 19769480 apply (pdb PDB12CDI): SUCCESS logfile: /opt/app/oracle/cfgtoollogs/sqlpatch/19769480/18350083/19769480_apply_ENT12C_PDB12CDI_2015Feb06_17_53_00.log (no errors)Rolling back of the patch fails with unable to open file catmmig.sql.
The log files shows
IGNORABLE ERRORS: NONE INSTALL_FILE -------------------------------------------------------------------------------- ?/sqlpatch/19518079/18024100/rollback_files/rdbms/admin/catmmig.sql SP2-0310: unable to open file "/opt/app/oracle/product/12.1.0/dbhome_2/sqlpatch/19518079/18024100/rollback_files/rdbms/admin/catmmig.sql" PL/SQL procedure successfully completed.The metalink notes listed at the end of the post gives a workaround for this which involves manually adding an entry to the registry$history to mention the upgrade.
Useful metalink notes
Oracle Quarterly Database Patch 12.1.0.2.4 Known Issues [ID 1942931.1]
Oracle Quarterly Database Patch 12.1.0.2.1 Known Issues [ID 1930503.1]
Bug 20421900 - catmmig.sql is missing from the 12.1.0.2.2/3/4 Engineered Systems / DB In-Memory Bundle Patch (DBBP) [ID 20421900.8]