ORA-28368: cannot auto-create wallet

While setting up the TDE in one of our systems, faced this issue

SQL> alter system set encryption key identified by dbawa11et;

alter system set encryption key identified by dbawa11et

*

ERROR at line 1:

ORA-28368: cannot auto-create wallet

Check the path where oracle is looking at

SQL> select * from v$encryption_wallet;

WRL_TYPE

--------------------

WRL_PARAMETER

--------------------------------------------------------------------------------

STATUS                         WALLET_TYPE          WALLET_OR FULLY_BAC

------------------------------ -------------------- --------- ---------

    CON_ID

----------

FILE

/etc/ORACLE/WALLETS/DBNAME/

NOT_AVAILABLE                  UNKNOWN              SINGLE    UNDEFINED

         0

check if that path exists

SQL> !ls /etc/ORACLE/WALLETS/DBNAME/

ls: /etc/ORACLE/WALLETS/DBNAME/: No such file or directory

if Not , create it

:[DBNAME]oracle@server:/home/oracle

==> mkdir -p /etc/ORACLE/WALLETS/DBNAME/

mkdir: cannot create directory `/etc/ORACLE': Permission denied

:[DBNAME]oracle@server:/home/oracle

==> sudo  mkdir -p /etc/ORACLE/WALLETS/DBNAME/

:[DBNAME]oracle@server:/home/oracle

==> chown oracle:dba /etc/ORACLE

chown: changing ownership of `/etc/ORACLE': Operation not permitted

:[DBNAME]oracle@server:/home/oracle

==> sudo chown -R oracle:dba /etc/ORACLE

:[DBNAME]oracle@server:/home/oracle

==> exit