On 30.11.2012 07:19, Collinson.Shannon wrote:
Sorry if this is a dumb question, but I'm a z/OS sysprog trying to keep z/VM and zlinux running at our shop so most of my questions are probably dumb. But we're trying to get a vendor tool (CA's Workload Automation agent) running on our new RHEL6.2 linux-on-z servers, and we can't find the right Java package for it. Part of it was not understanding the Java packaging, but now that we know that the agent requirement of "JRE 1.6 SR8, or higher (31-bit)" means we need to find a Java 2 1.6.0 Runtime Environment package for s390 (31-bit, right?) at service release 8 or better, we can't seem to find one.
You should be able to get something like java-1.6.0-ibm-1.6.0.x-1jpp.1.el6_2.s390, where x >= 8.
However, when we try to install that, it attempts to replace the 64-bit Java 1.6 already on the server. Can they not coexist like on z/OS?
Yes, but it depends how you install them. If you do: rpm -Uvh it will upgrade and remove whatever it thinks it oldest. If you do rpm -ivh it will install side by side. However, there's a gotcha at work here: Red Hat use the alternatives system to have a default available where there are multiple versions of the same binary present. If you do: $ which java it will tell you where the java executable is being run from, which should be '/usr/bin/java'. If you do: $ ls -l /usr/bin/java you should get something like: lrwxrwxrwx. 1 root root 22 May 20 2012 /usr/bin/java -> /etc/alternatives/java If you do lrwxrwxrwx. 1 root root 42 May 20 2012 /etc/alternatives/java -> /usr/lib/jvm/jre-1.6.0-ibm.x86_64/bin/java You'll see the real java binary it's pointing at. You can either use the 'alternatives' command to change the default for all use of the bare 'java' command on the system, or use the specific /usr/lib/jvm/jre-xxx/bin/java that you want when starting a program. -- Rodger Donaldson [email protected] ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
