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I have a Sun Fire X4450 running RHEL 5.3. Attached to this server via FC is a Sun StorageTek ST2540 that allows additional storage capacity. In order to administer the ...
  1. 06-10-2010 #1
    rabjac
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    Cannot Install Older Version Of Java JDK

    I have a Sun Fire X4450 running RHEL 5.3. Attached to this server via FC is a Sun StorageTek ST2540 that allows additional storage capacity. In order to administer the ST2540, a software application from Sun (CAM 6.6) has been installed. Part of the install process for this application also installs Java JDK1.6.0_12 (64-bit).

    However as we use this hardware as a database server, our database software will not install properly as it requires an earlier version of Java JDK1.5.0_11 to be installed. When I try and install the older JDK rpm package, RHEL will not let me. How can I get both versions of Java installed?

    TIA.
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  2. 06-10-2010 #2
    Rubberman
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    If you had the 1.5.0 JDK installed and didn't uninstall it, it is still there. Installing the new one just updates some softlinks in /usr/java. Look in the /usr/java directory. You should see two softlinks, default and latest. In /usr/bin you will see that /usr/bin/java is a link to /usr/java/default/bin/java (ditto /usr/bin/javac et al) and /usr/java/default is a link to /usr/java/latest which is in turn a link to (probably) /usr/java/jdk1.6.0_12. You can revert to the jdk1.5.0_11 by resetting /usr/java/default to that directory instead of latest or you can make /usr/java/jdk1.5.0_11/bin first in the PATH used by your database software. I would try changing /usr/java/default first and see if the storage application continues to work (it will probably) before going the PATH modification route.
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  3. 06-10-2010 #3
    rabjac
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    Unfortunately the CAMS 6.6 installation did indeed uninstall jdk1.5.0_11 as part of it's install process - it's not in the RPM listing.
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  4. 06-10-2010 #4
    Rubberman
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    Well, then download the 1.5.0_11 or similar JDK rpm file from Sun/Oracle and install it manually. I currently have 3 versions of Java installed on my system, but until recently I had about 7 or 8. Some of those I removed because I didn't need them any more and just wanted to clean up the system somewhat of old moldy bits.
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  5. 06-10-2010 #5
    coopstah13
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    you also don't actually have to use the RPM, you could download the old JDK bundle and just extract it into some directory like /opt, make sure whatever needs it knows where to look and not to use the other JDK
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