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controlfile error

SQL> startup  
ORACLE instance started.

Total System Global Area  146472960 bytes
Fixed Size                  1335080 bytes
Variable Size              92274904 bytes
Database Buffers           50331648 bytes
Redo Buffers                2531328 bytes
ORA-00205: error in identifying control file, check alert log for more info

jeevan mathew
jeevan mathew
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1 Solution
Did you check the Alert log?
What does it say?
Mark GeerlingsDatabase AdministratorCommented:
When Oracle starts, it first reads the "init" file from the Oracle_home/dbs directory (if your server O/S is UNIX or Linux) or the ORACLE_HOME/database directory if your server O/S is Windows.  This "init" file is either the older-style, plain text file with a name like: "init[SID].ora" or the newer (partly binary) spfile, with a name like: "spfile[SID].ora".  You can actually open and read (all except the first and last line of) the spfile with text editor also, just make sure that you *DO NOT* save an spfile from a text editor!  Either of these files will contain a "controlfile" parameter that lists the directory/ies and name(s) of your database controlfiles.  If this entry points to an invalid or incorrect directory path, you will get this error.

You can edit an init file directory with a text editor to correct the name or location of the controlfiles, if necessary, then try starting Oracle again.
jeevan mathewdbaAuthor Commented:
Yes tried, still has some problems. Let check modify.
jeevan mathewdbaAuthor Commented:
This is good.
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