Java Installation on SUN SPARC machines

First things first !! Basic rule of computing.. Whenever you are upgrading anything, take a back up of currently installed one. I have in my machine JDK 1.5_24 installed. So,

1) java -version---> Current version of Java

#cd /usr/jdk/instances

#ls -ld j*---> find out the current java installed directory

#tar -cvf java_ver.tar java_ver (ex:tar -cvf jdk1.5.0_24.tar jdk1.5.0_24) ---> take backup of currrntly installed java directory

#gzip java_ver.tar

#mv java_ver.tar.gz /var/tmp ---> zip & move it to /var/tmp for backup

2) Now, place the downloaded Java latest version files in /usr/jdk/instances.

The files may be of extension .sh or may be in encrypted format like .tar.gz , etc.

I have with me .sh files i.e. shell executable files as below..

#ls -l JDK_*

-rwxr-xr-x 1 root root 90228204 Oct 12 11:11 jdk-6u27-solaris-sparc.sh ----> For 32 bit

-rwxr-xr-x 1 root root 12831072 Oct 12 11:15 jdk-6u27-solaris-sparcv9.sh -----> For 64 bit

After copying, make sure that execution permissions are set on the self extracting binary file.

If not,

# chmod +x jdk-6u27-solaris-sparc.sh

# chmod +x jdk-6u27-solaris-sparcv9.sh

3) Executing Java .sh files

#java -version ----> check for current java version

#cd /usr/jdk

#ls -l ----> check for current link files

# cd instances

#pwd

/usr/jdk/instances

First run 32 bit java version after that install for 64 bit

#./jdk-6u27-solaris-sparc.sh

#./jdk-6u27-solaris-sparcv9.sh

#ls -l

#cd /usr/jdk/instances/jdk1.6.0_27/bin

#./java -version---> check for newly installed java working properly, it will show "java version "1.6.0_27"

4) Removal of current symbolic links
# cd /usr/jdk
#ls -l
# unlink java
# unlink latest
# unlink jdk1.5.0_28
#cd /usr/bin:#ls -l j*
#unlink java

5) Create sym links for the newly installed Java version
#cd /usr/jdk
#ln -s instances/jdk1.6.0_27/bin jdk1.6.0_27
#ln -s jdk1.6.0_27/java java
#ln -s jdk1.6.0_27 latest
#cd /usr/bin
#ln -s /usr/jdk/java java
#java -version

There you go, You must see the updated Java version now.If you don't see,then you probably have a problem with creating symbolic links. Do double check the created the symbolic links !! Enjoy !!