ORACLE initialization or shutdown in progress solution (tangle one afternoon finally, thanks to this article)

C:\documents and settings\administrator>sqlplus /nolog    sql> connect  system/password  as sysdba    connected.    sql> shutdown normal    ora-01109:  Database not open           has uninstalled the database. The    oracle  routine has been closed.    Sql> startup mount    oracle  routine has started.       total system global area  612368384 bytes    fixed size                   1250428 bytes    variable size              348130180 bytes    database buffers           255852544 bytes    redo buffers            &nbSp;    7135232 bytes    Database loading complete.    Sql> alter database open      2  ;    alter database open    *    section  1  line error:    ORA-01157: Unable to identify/lock data file 6-see DBWR trace file
ORA-01110: Data file 6: ' F:\ORACLE1 '

The database has been unloaded.
The ORACLE routine has been closed.
sql>; startup
sp2-0042: Unknown command "; startup"-The remaining lines are ignored.
Sql> Startup
The ORACLE routine has started.

Total System Global area 373293056 bytes
Fixed Size 1249056 bytes
Variable Size 92274912 bytes
Database buffers 272629760 bytes
Redo buffers 7139328 bytes
Database loading complete.
ORA-01157: Unable to identify/lock data file 6-see DBWR trace file
ORA-01110: Data file 6: ' F:\ORACLE1 '

sql> ALTER DATABASE datafile offline drop;
ALTER DATABASE datafile offline drop
*
Line 1th Error:
ORA-01516: Nonexistent log file, data file or temporary file "19"

Sql> ALTER DATABASE datafile 6 offline drop
2;

The database has changed.

sql> shutdown Normal
ORA-01109: Database not open

The database has been unloaded.
The ORACLE routine has been closed.
Sql> Startup
The ORACLE routine has started.

Total System Global area 373293056 bytes
Fixed Size 1249056 bytes
Variable Size 92274912 bytes
Database buffers 272629760 bytes
Redo buffers 7139328 bytes
Database loading complete.
ORA-01157: Unable to identify/lock data file 7-see DBWR trace file
ORA-01110: Data file 7: ' F:\ORACLE2 '

sql> ALTER DATABASE datafile 7 offline drop
2;

The database has changed.

sql> shutdown Normal
ORA-01109: Database not open

The database has been unloaded.
The ORACLE routine has been closed.
Sql> Startup
The ORACLE routine has started.

Total System Global area 373293056 bytes
Fixed Size 1249056 bytes
Variable Size 92274912 bytes
Database buffers 272629760 bytes
Redo buffers 7139328 bytes
Database loading complete.
ORA-01157: Unable to identify/lock data file 8-see DBWR trace file
ORA-01110: Data file 8: ' F:\ORACLE3 '

sql> ALTER DATABASE datafile 8 offline drop
2;

The database has changed.

sql> shutdown Normal
ORA-01109: Database not open

The database has been unloaded.
The ORACLE routine has been closed.
Sql> Startup
The ORACLE routine has started.

Total System Global area 373293056 bytes
Fixed Size 1249056 bytes
Variable Size 92274912 bytes
Database buffers 272629760 bytes
Redo buffers 7139328 bytes
Database loading complete.
ORA-01157: Unable to identify/Lock data file 9-see DBWR trace file
ORA-01110: Data file 9: ' F:\ORACLE4 '

sql> ALTER DATABASE datafile 9 offline drop;

The database has changed.

sql> shutdown Normal
ORA-01109: Database not open

The database has been unloaded.
The ORACLE routine has been closed.
Sql> Startup
The ORACLE routine has started.

Total System Global area  373293056 bytes
Fixed size                   1249056 bytes
Variable size               92274912 bytes
Database buffers           272629760 bytes
Redo buffers                 7139328 bytes
Database mount complete. The
database is already open.
Sql>