I'm tring to install jdk 8 for weeks, but it fails.Following are some outputs,

sudo update-alternatives --config java

There is only one alternative in link group java (providing /usr/bin/java): /opt/java-oracle/jdk1.8.0/bin/java
Nothing to configure.

which java



 bash: /usr/local/java/jdk1.7.0_51/bin/java: No such file or directory

ls -l /usr/bin/java

 /usr/bin/java -> /etc/alternatives/java

ls -l /etc/alternatives/java

/etc/alternatives/java -> /opt/java-oracle/jdk1.8.0/bin/java

sudo update-alternatives --config javac

/opt/java-oracle/jdk1.8.0/bin/javac 1 manual mode


  Error: could not find libjava.so
  Error: Could not find Java SE Runtime Environment.

If you can please give me a help to slove this problem. Thank You


I installed the jdk just fine. Here's what I did.

  1. Get the .rpm file from Oracle's website.

  2. Open up a terminal and type this command:sudo apt-get install alien

  3. Wait for alien to install.

  4. Type: sudo alien -i -c <path to the file>

  5. Wait for that to finish installing. It will look like it's not doing anything for a while, but it is.

  6. Test the installation with: java -version

  7. You're done!

  • couldn't install : Errors were encountered while processing: jdk1.8.0-66 Unable to install at /usr/share/perl5/Alien/Package/Deb.pm line 92, <GETPERMS> line 1841. find jdk1.8.0_66-1.8.0_66 -type d -exec chmod 755 {} ; rm -rf jdk1.8.0_66-1.8.0_66 jprogrammer@ubuntu:~$ – EKanadily Dec 10 '15 at 18:58

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