Step by Step How To Recreate Central Inventory In RDBMS Homes


How to recreate oraInventory (Central Inventory) in RDBMS Homes if the central inventory is corrupted or lost?

STEP 1:

Locating the central inventory 

  •  The location of the central inventory can be found from the central inventory pointer.
  • The location of the central inventory can be found from the central inventory pointer can be found from the file /etc/oraInst.loc (AIX and Linux) or /var/opt/oracle/oraInst.loc (Platform specific)
  • If an oraInst.loc file does not exist, then create one as below with the following entries:

    inventory_loc=<location_for_oraInventory>
    inst_group=<name_of_group_for_installtion>

    Example:
    inventory_loc=/u01/oracle/oraInventory
    inst_group=oinstall

    Make sure that the Oracle Owner has proper permissions (755) on the location specified for the oraInventory.

STEP 2: 

Remove the Central inventory (if it exists)

Use the following command to rename the oraInventory (Unix/Linux)

$ mv oraInventory oraInventory_orig


STEP 4:

Attaching the Home for Oracle Database

Execute runInstaller with -attachHome option for Oracle Home.

% ./runInstaller -silent -ignoreSysPrereqs -attachHome ORACLE_HOME="<Oracle_Home_Location>" ORACLE_HOME_NAME="<Name_Of _Oracle_Home>"


[ordnbtyi@shsdnbty01 121]$ cd $ORACLE_HOME/oui/bin
[ordnbtyi@shsdnbty01 bin]$ ./runInstaller -silent -ignoreSysPrereqs -attachHome ORACLE_HOME="/ordbnbtyi/dnbtyi/db/tech_st/121" ORACLE_HOME_NAME="OraDb11g2_home1"
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 3071 MB    Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /ordbnbtyi/dnbtyi/oraInventory
'AttachHome' was successful.
[ordnbtyi@shsdnbty01 bin]$ opatch lsinventpry
Oracle Interim Patch Installer version 11.2.0.3.4
Copyright (c) 2012, Oracle Corporation.  All rights reserved.

Syntax Error... Unrecognized Command or Option (lsinventpry): 1st argument must be one of the following:
   apply
   napply
   rollback
   nrollback
   lsinventory
   lsinv
   lspatches
   query
   util
   prereq
   version
   -help
   -help -fmw

Please use the option 'opatch  -help' to get correct syntax

OPatch failed with error code 14
[ordnbtyi@shsdnbty01 bin]$ opatch lsinventory
Oracle Interim Patch Installer version 11.2.0.3.4
Copyright (c) 2012, Oracle Corporation.  All rights reserved.


Oracle Home       : /ordbnbtyi/dnbtyi/db/tech_st/121
Central Inventory : /ordbnbtyi/dnbtyi/oraInventory
   from           : /ordbnbtyi/dnbtyi/db/tech_st/121/oraInst.loc
OPatch version    : 11.2.0.3.4
OUI version       : 11.2.0.4.0
Log file location : /ordbnbtyi/dnbtyi/db/tech_st/121/cfgtoollogs/opatch/opatch2023-03-12_18-51-00PM_1.log

Lsinventory Output file location : /ordbnbtyi/dnbtyi/db/tech_st/121/cfgtoollogs/opatch/lsinv/lsinventory2023-03-12_18-51-00PM.txt

--------------------------------------------------------------------------------
Installed Top-level Products (1):

Oracle Database 11g                                                  11.2.0.4.0
There are 1 products installed in this Oracle Home.


There are no Interim patches installed in this Oracle Home.


--------------------------------------------------------------------------------

OPatch succeeded.

Some time we need to detach first then attach the home again by using above command.


[ordnbtyi@shsdnbty01 bin]$ ./runInstaller -silent -ignoreSysPrereqs -detachHome ORACLE_HOME=$ORACLE_HOME
Starting Oracle Universal Installer...

Checking swap space: must be greater than 500 MB.   Actual 3071 MB    Passed
The inventory pointer is located at /etc/oraInst.loc
The inventory is located at /ordbnbtyi/dnbtyi/oraInventory

For reference Oracle Metalink doc id : (556834.1)

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