Create database manually.unexpected error incountered

Question

I am not able to create database manually.unexpected error incountered why?
Same step is worked in another system
SQL> startup nomount
ORACLE instance started.
Total System Global Area 97589952 bytes
Fixed Size 453312 bytes
Variable Size 46137344 bytes
Database Buffers 50331648 bytes
Redo Buffers 667648 bytes
SQL> create dtabase;
create dtabase
ERROR at line 1:
ORA-00901: invalid CREATE command
SQL> ed
Wrote file afiedt.buf
1 CREATE DATABASE icici
2 LOGFILE GROUP 1 ('F:\oracle\oradata\icici\logfile\redo01.log') SIZE 10M,
3 GROUP 2 ('F:\oracle\oradata\icici\logfile\redo02.log') SIZE 10M,
4 GROUP 3 ('F:\oracle\oradata\icici\logfile\redo03.log') SIZE 10M
5 MAXLOGFILES 5
6 MAXLOGMEMBERS 5
7 MAXLOGHISTORY 1
8 MAXDATAFILES 10
9 MAXINSTANCES 1
10 CHARACTER SET US7ASCII
11 NATIONAL CHARACTER SET AL16UTF16
12 DATAFILE 'F:\oracle\oradata\icici\datafile\system01.dbf' SIZE 100M REUSE
EXTENT MANAGEMENT LOCAL
13 DEFAULT TEMPORARY TABLESPACE tempts1 TEMPFILE 'F:\oracle\oradata\icici\d
atafile\temp01.dbf' SIZE 100M REUSE
14 UNDO TABLESPACE undotbs DATAFILE 'F:\oracle\oradata\icici\datafile\undot
bs01.dbf'SIZE 100M REUSE
15* AUTOEXTEND ON NEXT 5120K MAXSIZE 300M
SQL> /
CREATE DATABASE icici
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced
SQL>

Answer 1

I'll lay odds that the problem is that you've asked this database to use an UNDO tablespace called UNDOTBS, but that in your spfile (or init.ora) you've specified UNDO_TABLESPACE=UNDOTBS01 (or something similar).
If the parameter file specifies an undo tablespace which doesn't exist, the instance blows up.
The advice to read the alert log would be useful at this point, because the mismatch of undo tablespace names is always recorded properly there (which always makes me annoyed that the original error message can't be a bit more precise!)