Recover database after loss of control file

I lost the control file and when trying to start the database I am getting the error below:

SQL> startup
ORACLE instance started.

Total System Global Area  838860800 bytes
Fixed Size                  8798312 bytes
Variable Size             339742616 bytes
Database Buffers          486539264 bytes
Redo Buffers                3780608 bytes
ORA-00205: error in identifying control file, check alert log for more info


SQL> 

You can see that the error is there in alert log as well.

2019-04-27T07:29:30.006425-04:00

ALTER DATABASE   MOUNT

2019-04-27T07:29:30.781317-04:00

ORA-00210: cannot open the specified control file

ORA-00202: control file: '/u01/app/oracle/oradata/orcl12c/control01.ctl'

ORA-27037: unable to obtain file status

Linux-x86_64 Error: 2: No such file or directory

Additional information: 7

ORA-205 signalled during: ALTER DATABASE   MOUNT...

2019-04-27T07:29:30.932158-04:00

Errors in file /u01/app/oracle/diag/rdbms/orcl12c/orcl12c/trace/orcl12c_m000_12917.trc:

ORA-00202: control file: '/u01/app/oracle/oradata/orcl12c/control01.ctl'

ORA-27037: unable to obtain file status

Linux-x86_64 Error: 2: No such file or directory

Additional information: 7

2019-04-27T07:29:32.069723-04:00

Checker run found 1 new persistent data failures

Solution: copying the second controlfile over original location and calling it control01.ctl and starting database fixed the issue.

location of the second control file is in the alert log.

  control_files            = "/u01/app/oracle/oradata/orcl12c/control01.ctl"

  control_files            = "/u01/app/oracle/fast_recovery_area/orcl12c/control02.ctl"

$ cp /u01/app/oracle/fast_recovery_area/orcl12c/control02.ctl /u01/app/oracle/oradata/orcl12c/control01.ctl

SQL> startup

ORACLE instance started.

Total System Global Area  838860800 bytes

Fixed Size                  8798312 bytes

Variable Size             339742616 bytes

Database Buffers          486539264 bytes

Redo Buffers                3780608 bytes

Database mounted.

Database opened.

SQL>