Ross Greenwood

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I'm trying to upgrade my version of java from 1.4 to 1.6, and I'm trying to do so using an .rpm package and the -U option. I downloaded the .bin file from Sun's website and extracted it. But when I try to upgrade it by typing:

sudo rpm -Uvh jdk-6u14-linux-i586.rpm

I get the following message:

package jdk-1.6.0_14-fcs.i586 is already installed

However, when I try to see if it worked by typing "java -version", it still tells me I have java version 1.4.

Another strange part about this situation is that when I try to uninstall the package by typing:

sudo rpm -e jdk-6u14-linux-i586.rpm

it tells me that the package is not installed, so it seems to be contradicting itself.


Anyhow, I'm kind of a hardcore n00b and have basically no idea what I'm doing, so any help/advice would be greatly appreciated. Thanks!

knudfl

Welcome to LQ.

No, the "rpm database" will not know the package name
jdk-6u14-linux-i586.rpm

But probably jdk-6u14-linux-i586 , if that is correct ?
Please find the actual name with
yum list installed | grep jdk
or
rpm -qa | grep jdk
.....
The reason for 'java -version' to return java version 1.4
is that the link 'java' in /usr/bin/ is pointing to " 1.4 "
This can probably be changed with the command
# /usr/sbin/alternatives --config java
( or may be : sudo /usr/sbin/alternatives --config java )
More hints here
http://fedorasolved.org/browser-solutions/java-i386
.....

kirukan

check the jdk1.6.0 directory where it has located and set the environment variable as follows
Ex-
JAVA_HOME=/usr/java/jdk1.6.0
export JAVA_HOME