patching 19c db to 19.10 : datapatch -verbose error PDB$SEED is in MOUNTED state
ash-4.2$ ./datapatch -verbose
SQL Patching tool version 19.10.0.0.0 Production on Tue Apr 27 14:04:27 2021
Copyright (c) 2012, 2020, Oracle. All rights reserved.
Log file for this invocation: /scratch/app/19cDB/cfgtoollogs/sqlpatch/sqlpatch_6577_2021_04_27_14_04_27/sqlpatch_invocation.log
Connecting to database...OK
Gathering database info...Error: prereq checks failed!
PDB$SEED is in MOUNTED state
Please refer to MOS Note 1609718.1 and/or the invocation log
/scratch/app/19cDB/cfgtoollogs/sqlpatch/sqlpatch_6577_2021_04_27_14_04_27/sqlpatch_invocation.log
for information on how to resolve the above errors.
SQL Patching tool complete on Tue Apr 27 14:04:27 2021
bash-4.2$