Socorro! Eu não consigo descobrir como instalar um jdk!

[/usr/lib/jvm]$ su -c "yum install java-1.7.0-openjdk-devel"
Loaded plugins: langpacks, presto, refresh-packagekit
No package java-1.7.0-openjdk-devel available.
Error: Nothing to do

[/usr/lib/jvm]$ su -c "yum install java-1.7.0-openjdk"
Loaded plugins: langpacks, presto, refresh-packagekit
No package java-1.7.0-openjdk available.
Error: Nothing to do

[/usr/lib/jvm]$ su -c "yum install java-1.6.0-openjdk-devel"
Loaded plugins: langpacks, presto, refresh-packagekit
No package java-1.6.0-openjdk-devel available.
Error: Nothing to do

[/usr/lib/jvm]$ su -c "yum install java-1.6.0-openjdk"
Loaded plugins: langpacks, presto, refresh-packagekit
No package java-1.6.0-openjdk available.
Error: Nothing to do

Aqui baixei manualmente alguns rpm's, o último do site da oracle:

[~]$ rpm -ivh java-1.7.0-openjdk-devel-1.7.0.19-2.3.9.3.fc20.x86_64.rpm 
error: Failed dependencies:
    java-1.7.0-openjdk = 1:1.7.0.19-2.3.9.3.fc20 is needed by java-1.7.0-openjdk-devel-1:1.7.0.19-2.3.9.3.fc20.x86_64


[~]$ sudo rpm -ivh java-1.7.0-openjdk-1.7.0.19-2.3.9.3.fc20.x86_64.rpm 
Preparing...                          ################################# [100%]
    file /usr/lib/jvm-exports/jre-1.7.0-openjdk.x86_64 from install of java-1.7.0-openjdk-1:1.7.0.19-2.3.9.3.fc20.x86_64 conflicts with file from package java-1.7.0-openjdk-1:1.7.0.9-2.3.7.0.fc18.x86_64
    file /usr/lib/jvm/jre-1.7.0-openjdk.x86_64 from install of java-1.7.0-openjdk-1:1.7.0.19-2.3.9.3.fc20.x86_64 conflicts with file from package java-1.7.0-openjdk-1:1.7.0.9-2.3.7.0.fc18.x86_64


[~]$ sudo rpm -ivh jdk-7u21-linux-x64.rpm 
Preparing...                          ################################# [100%]
    file /etc/init.d/jexec from install of jdk-2000:1.7.0_21-fcs.x86_64 conflicts with file from package jdk-2000:1.6.0_38-fcs.x86_64

Depurar

Aqui estão algumas informações de depuração:

[/usr/lib/jvm]$ yum search jdk
Loaded plugins: langpacks, presto, refresh-packagekit
=========================================================== N/S Matched: jdk ============================================================
java-1.7.0-openjdk-javadoc.noarch : OpenJDK API Documentation
jdk.x86_64 : Java(TM) Platform Standard Edition Development Kit
ldapjdk.noarch : The Mozilla LDAP Java SDK
Name and summary matches only, use "search all" for everything.

.

[/usr/lib/jvm]$ yum list java*
Loaded plugins: langpacks, presto, refresh-packagekit
Installed Packages
java-1.5.0-gcj.x86_64   

.

[/usr/lib/jvm]$ cat /etc/fedora-release 
Fedora release 18 (Spherical Cow)

Requisitos

I devo ter "jni.h","libjava.so","libhpi.so","lipverify.so"e"libjvm.so"incluído.

Até agora eu descobri que estes não têm o que eu preciso:

Versões não desejadas (com certeza):jdk1.7.0_06 <-Estou surpreso com isso, mas não tem libjvm nem libhpijava-1.7.0java-openjdkjava-1.7.0-openjdk-1.7.0.9.x86_64java-1.5.0-gcj-4.4java-1.6.0-openjdkjava-1.7.0-openjdk.x86_64jre-1.5.0-gcjjre-1.7.0-openjdk.x86_64jre-openjdkjre-1.7.0jre-7u11-linux-x64.rpm java-1.5.0-gcj-1.5.0.0jre-1.5.0jre1.7.0_11jre-gcj

E estes fazem:

Versões desejadas (que eu saiba, pode haver mais):jdk1.6.0_34-x86jdk1.5.0_22-x86java-6-openjdk

Alguém pode me ajudar a instalar jdk1.6 ou java-6-openjdk por favor?