ORA-07217: sltln: environment variable cannot be evaluated.
Grid version 19c
database version 12.2
O/S linux
after successfully restoring controlfile backup, to mount DB i am getting below error
RMAN> restore controlfile from '/orabackup/dbbackup/rman/udisdevd/02172021/UDISDEVD_Control_20210217_opvneff1_1';
Starting restore at 21-FEB-2021 14:41:38
using channel ORA_DISK_1
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output file name=+DATA_D/udisdevd/CONTROLFILE/control01.ctl
output file name=+DATA_D/udisdevd/CONTROLFILE/control02.ctl
Finished restore at 21-FEB-2021 14:41:39
RMAN> alter database mount;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of sql statement command at 02/21/2021 14:41:48
ORA-07217: sltln: environment variable cannot be evaluated.