Recovery from dbf files

Hi,
We have a production database on oracle 8i running on Windows NT in nonarchivelog mode.It 's online redo logs are corrupted .Redo logs are not multiplexed.

ORA-00314 (LOG 3 THREAD 1 ,EXPECTED SEQUENCE #1091 DOES NOT MATCH 1087)Is showing on startup.
on applying redo logs BY ISSUING COMMAND -"RECOVER DATABASE UNTIL CANCEL" it also gives same error message.

ORA-01194 (File System.dbf needs more recovery to be consitent.)is showing on trying to recover by alter database open resetlogs.


I think my system.dbf is also in inconsistent state.How I can restore.
Is it possible to take any other database's System.dbf having the same schema and replace and recover.

I have a logical backup(dmp) which is old enough.

Smruti

Try and issue recover database until cancel using backup controlfile
and then manually supply the on line redo files

if that does not work create a new shell db and then import your dump file

you cannot use another db's system df for recovery

Online redo logs are corrupted... Only one recovery scenario is possible... Just restore from a full cold back up taken last and open the database.

*** I havent expoloed hidden init parameters.. there is one I guess.. _skip_redo**** .. dont remember it exactly.. Try googling..

steve > your online redo logs corrupted means, instance crash and instance will not come up.. so, no concept of import.