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I'm trying to install Java through apt-get.

I found this PPA of Java Installers, however, when I add the repository, update and then issue the apt-get install -y command, the installer for java takes over and it pops up a configuration option.

I'm hoping to be able to install it without any intervention or pressing of keyboards since I am creating build and deploy scripts for my EC2 instances which will automatically install all of the tagged packages that it needs.

Is there any other options?

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4 Answers 4

up vote 34 down vote accepted

If OpenJDK/OpenJRE works fine for you, I recommend using that package instead as suggested by @SAM. However, some software really requires Oracle's JDK/JRE. This answer is how to silence the license question with the Oracle package from the PPA.

First, let's recognize the question asked is a feature of the package, created by the developer.

oracle-java7-installer (7u7-0~webupd8~4) maverick; urgency=medium

  * removed cookie file use or else the PPA stays disabled
  * request the user to accept the Oracle license before installation
 -- Alin Andrei <webupd8@gmail.com>   Tue, 04 Sep 2012 14:18:29 +0200

As @Nate indicated in his answer, there should be a silent option. And there is. Do this before installing it:

$ echo debconf shared/accepted-oracle-license-v1-1 select true | \
  sudo debconf-set-selections
$ echo debconf shared/accepted-oracle-license-v1-1 seen true | \
  sudo debconf-set-selections

This sets the value of the debconf key to true, but also marks it as seen by the user. Now this question should not appear!

How did I find this?

In the source of the package, I tracked this down in the oracle-java7-installer.preinst file:

license=oracle-license-v1-1

# snip

db_get shared/accepted-$license
if [ "$RET" = "true" ]; then
    echo "$license license has already been accepted" >&2
    exit 0
fi

Apparantly, it uses debconf's value for the key shared/accepted-oracle-license-v1-1 to check whether the user has already accepted the license. If it is, the script will exit gracefully and allow the installation to continue without asking you the question. We should now just tell debconf you already accept the Oracle Licence 1.1.

Please refer to the manpage of debconf-set-selections on more details, but this is the example for your issue and works similar for other packages. What other keys do you have on your system in debconf's database? Install debconf-utils and do

$ sudo debconf-get-selections

Then grep for more keys you need to set in your automated installation. This is way more flexible than using -y with apt-get as it gives you the opportunity to set other than default settings on installation times.

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Fantastic answer. :) –  Layke Sep 19 '12 at 21:05
    
Awesome answer. Works from a shell script too. –  Derek May 13 '13 at 15:38
    
Also works for Java 8. –  eegg May 5 at 15:36

Oracle java is no longer in the Ubuntu repos. http://www.omgubuntu.co.uk/2011/12/java-to-be-removed-from-ubuntu-uninstalled-from-user-machines

Here is how to install the Java JDK. How do I install Oracle Java JDK 7?

There should be a silent option available.

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For a silent java install you can try open-jdk:

sudo apt-get install -y openjdk-7-jdk

Also try this for more open-jdk packages/extensions...

sudo apt-cache search openjdk

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This solution worked great. sudo apt-get install -y openjdk-7-jdk –  Layke Sep 19 '12 at 17:17

Supporting @gertvdijk answer is the description in the original blog post about webupd8's PPA.

Update 2: the installer now requires you accept the Oracle license before the installation begins. This is only required once. If for some reason you need the installation to be automated, you can run the following command to automatically accept the Oracle license:

sudo echo oracle-java7-installer shared/accepted-oracle-license-v1-1 select true | \
sudo /usr/bin/debconf-set-selections`
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That's the line of magic I needed for my silent install of Oracle Java - thanks @Hosam –  Phantomwhale Mar 26 at 3:23
    
You're welcome @Phantomwhale –  Hosam Aly Mar 26 at 11:07

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