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3 Replies Latest reply: Nov 26, 2012 1:40 PM by BillW RSS

I am seeking assistance installing OEM 12c

BillW Newbie
Currently Being Moderated
I will try to describe the issue clearly.

I am attempting to upgrade our OEM 11g installation to OEM 12c using the 2-System Method. I have completed the following steps -

1) Applied patch 13943512, Enterprise Manager 12c Upgrade Console to the 11g OEM, configured plugins and it seems to be functioning properly.

2) Created a copy of the 11g repository on a new server. The existing repository is on Solaris Sparc. I installed and patched to on linux enterprise 5 x86-64 (I am told the repository must be the same RDBMS version in order to upgrade) and used export/import to move the repository to the new server.

3) On a linux 6 x86-64 I have downloaded the files -
as well as the plugins and am attempting to install the OEM. I executed the following command -
./runInstaller -pluginLocation /usr/local/oracle/oem12cagentplugins
I specified the new repository information at the connection details page and the following error is displayed -

Ensure that all EM AQ tables are enabled for enqueue and dequeue

I have searched the documentation looking for information on this requirement and am unable to find anything. I don't understand why it is requiring this and am looking for help in answering/resolving this question.

Thank you.
Bill Wagman
  • 1. Re: I am seeking assistance installing OEM 12c
    LeightonLNelson Journeyer
    Currently Being Moderated
    What steps have you followed to do the export/import? I believe it is not officially supported to do export/import for repository upgrade using 2-System Method. However, I was able to do the upgrade from to by following note this note "Grid Control Repository: Steps for Cross Platform Migration of the 10g Grid Control Repository [ID 388090.1]". See note "11g Grid Control: Steps for Migrating the 11g Grid Control Repository from One Database to Another [ID 1302281.1]" for 11g steps. There are post-installation steps to re-enable the queues.

    I recommend to open an SR for help with repository cross-platform migration for upgrade 12c upgrade.

  • 2. Re: I am seeking assistance installing OEM 12c
    Akanksha Sheoran Kaler Pro
    Currently Being Moderated
    Thanks Nelson for sharing details from your upgrade experience.

    Hi Bill, i agree with Nelson you should open a SR with oracle support and they will guide you through the EM upgrade process. To share few resources with you:

    EM 12.1 Install and Upgrade guide available:

    Installation and Upgrade collateral page(PPT,Recorded demo,Whitepapers) on OTN:

    Before you start the EM upgrade make sure that the DB migration on a diff OS is done correctly and DB is working fine.
  • 3. Re: I am seeking assistance installing OEM 12c
    BillW Newbie
    Currently Being Moderated
    Thank you both for your replies. Nelson, I am not aware of the two notes you referenced and will take a look at them. I did open an SR with Oracle and was told that cross-platform migration between the version of Solaris SPARC and Red Hat Eneterpirse Linux is not supported and that I would thus have to do it using datapump export/import. I will check out the two notes you suggested. Hopefully the procedure I followed will not cause further problems as I continue.

    I did figure out that the problem resulted from enqueue status of several jobs in the 11g database was set to yes but that status was not carried over when I restored the database on my new repository server. Once I did this -
    exec dbms_aqadm.start_queue(queue_name => 'SYSMAN.<queue>');
    for each of the the installation proceeded so it turns out that was the immediate problem. I also had to change some init parameters in the restored database. It would have been much cleaner if I could have used RMAN.The installation is now proceeding and I will continue on until the next hurdle is reached.

    Again, thank you for the updates.
    Bill Wagman


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