E: Package 'oracle-java8-installer' has no installation candidate - ubuntu-16.04

I tried to install java8 using the following commands:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
I'm getting an error as follows :
Package oracle-java8-installer is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package 'oracle-java8-installer' has no installation candidate
when I searched the error, I found out that "WebUpd8" team has officially discontinued there support.
Please help to install oracle java 8. I'm using ubuntu 16.04.

I just went through the same process and I fixed the problem by manually installing java 8 on my ubuntu 18.04 machine. Hopefully my answer will help you.
Download the latest JAVA 8 SE development kit from here: https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase8-2177648.html
Open your terminal.
Type $mkdir /opt/jdk.
Untar Java in your new folder $tar -zxf jdk-8u5-linux-x64.tar.gz -C /opt/jdk.
Set oracle JDK as the default JVM by running those two instructions (or something around that depending on your configuration):
Note: Each bullet point is one single command
update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_<YourVersion>/bin/java 100
update-alternatives --install /usr/bin/javac javac /opt/jdk/jdk1.8.0_<YourVersion>/bin/javac 100
You can check the result by running java -version !
Before I started, I went through those steps as well in order to remove completely java from my system: https://askubuntu.com/questions/84483/how-to-completely-uninstall-java#185250
The source I used for the manual installation of JAVA was this article: https://www.digitalocean.com/community/tutorials/how-to-manually-install-oracle-java-on-a-debian-or-ubuntu-vps

Add the following line to /etc/apt/sources.list:
deb https://debian.opennms.org/ stable main
Install GPG key of the repository:
wget -O - http://debian.opennms.org/OPENNMS-GPG-KEY | sudo apt-key add -
Update the package index:
sudo apt-get update
Install oracle-java8-installer deb package:
sudo apt-get install oracle-java8-installer
Source

I was facing the same issue and resolved with this:\
sudo apt install openjdk-8-jdk

Please read the details when we execute the below command:
sudo add-apt-repository ppa:webupd8team/java
The Oracle JDK License has changed for releases starting April 16,
2019.
The new Oracle Technology Network License Agreement for Oracle Java SE
is substantially different from prior Oracle JDK licenses. The new
license permits certain uses, such as personal use and development
use, at no cost -- but other uses authorized under prior Oracle JDK
licenses may no longer be available. Please review the terms carefully
before downloading and using this product. An FAQ is available here:
https://www.oracle.com/technetwork/java/javase/overview/oracle-jdk-faqs.html
Oracle Java downloads now require logging in to an Oracle account to
download Java updates, like the latest Oracle Java 8u211 / Java SE
8u212. Because of this I cannot update the PPA with the latest Java
(and the old links were broken by Oracle).
For this reason, THIS PPA IS DISCONTINUED (unless I find some way around this limitation).

This PPA works (Ubuntu 16.04)
sudo add-apt-repository ppa:ts.sch.gr/ppa
sudo apt-get update
sudo apt-get install oracle-java8-installer

Related

Error while running 'make install' command to install Apache AGE

After successfully installing postgresql from source code, I got an error while installing Apache AGE. I have attached a screenshot of the error below. It would be great if someone can help out.Terminal view of command and error
I am searching online to find a solution but haven't been able to found yet.
From the image, it looks like you are using postgres 12.13.
For postgres 12, you should checkout to age for pg12 branch by doing git checkout release/PG12/1.1.1 and then make install.
I was also getting errors in a configuration which were resolved by using this command first.
sudo apt-get install build-essential libreadline-dev zlib1g-dev flex bison
Try this and this will solve your problem too
In addition to installing the essential libraries before the actual installation using:
sudo apt-get install build-essential libreadline-dev zlib1g-dev flex bison (Note: The above command is for Ubuntu only. If you are not on Ubuntu, See here)
It is also recommended to install the postgreSQL development files using:
sudo apt install postgresql-server-dev-xx
This is not the exact command to be typed in the terminal. Check out the link
here to see the exact compatible command to execute according to the version of Linux you are currently using.

how to install php 5.6 on ubuntu 16.04 running Virtualmin Control Panel

i have tried a number of times to get php 5.6 working on ubuntu 16.04
I keep getting a server error 500 when trying to browse http:/domain.com/phpinfo.php to check which version of php is active (server also has 7.0, 7.1, & 7.2)
I also have same error when attempting to run php 7.1 (7.0 & 7.2 are working no problems and i have websites running on the virtualmin server.
I have looked at various answers about this kind of thing here but in all honesty, the answers are often so broken and different i cant find a single procedure that is reliable and works.
Anyone help with this?
For example, will the following ispconfig 3 tutorial, which installs php5.6 in /opt directory, work with virtualmin? ( https://www.howtoforge.com/tutorial/how-to-install-php-5-6-on-ubuntu-16-04/ )
My assumption is that the above tutorial will work and i just need to tell virtualmin where the php 5.6 binaries are located in /opt/? ( see this thread... https://www.virtualmin.com/node/40004 )
By default, Ubuntu 16.04 server assigns the PHP 7.07 or higher version. If you want to allow/assign PHP 5.6 on your server then you will have to install it manually from the following command:
Step 1: Step 1: Update Apt-Get
Linux command: apt-get update && apt-get upgrade.
Step 2: Install PHP 5.6
Install the PHP5.6 repository with these two commands.
Linux command:
apt-get install -y software-properties-common
add-apt-repository ppa:ondrej/php
apt-get update
apt-get install -y php5.6
Step 3: Switch PHP 7.0 to PHP 5.6
Switch from PHP 7.0 to PHP 5.6 while restarting Apache to recognize the change:
a2dismod php7.0 ; a2enmod php5.6 ; service apache2 restart
Verify that PHP 5.6 is running on Apache by putting up a PHP info page. To do so, use the code below in a file named as infopage.php and upload it to the /var/www/html directory.
<? phpinfo(); ?>
First add the ppa:ondrej/php repository:
sudo -s
apt-get update
apt-get install -y software-properties-common
add-apt-repository ppa:ondrej/php
If at this point it throws a CPG error like:
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net/ondrej/php/ubuntu xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY <THE_KEY>
W: The repository 'http://ppa.launchpad.net/ondrej/php/ubuntu xenial InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
..pay attention in the 2nd line showing THE_KEY, then solve with:
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys <THE_KEY>
Finally:
apt-get update
apt-get install -y php5.6
php -v

sudo apt-get install scala not found on ubuntu

I am completely stumped by why this simple sudo install is not working.
I am running ubuntu 16.04 on virtualbox on windows, and when i run the command
sudo apt-get install scala
command, I get the E:Unable to locate package scala error.
I have sudo apt-get update beforehand, and sudo apt-get install default-jdk worked
perfectly fine.
Does anyone have any idea why my ubuntu can't find the scala package?
There is a way to apt-get Scala, but you have to add the bintray repository to your sources file.
deb https://dl.bintray.com/sbt/debian / # access to Scala deb packages
I recommend against installing Scala with apt install scala, as the versions can be out of date (on Ubuntu 18.04 I got v2.11, while v2.13 is available). Instead go to the Scala webpage and install from there. If you want to be able to run
$ scala
and get the REPL, one option is to look for the .deb package on the install page and use that

How to install Oracle JDK 7 and Netbeans IDE in Linaro 13.01 ubuntu tty1?

I have a Processor A13(cpu: cortex-A8 ARM v7) of allwinner and my OS is Linaro 13.01 Ubuntu tty1.
So how do I install Oracle JDK7 and Netbeans IDE on that?
If you're using Ubuntu, there are several ways to install NetBeans. One way is to use Ubuntu's "Software Centre" which you can use just to search to NetBeans and it should install it including all dependencies.
You can also use your web browser in Ubuntu and head to www.netbeans.org and click "Download" at the top right, there you can choose your operating system and download the correct version of NetBeans.
Once downloaded you can run the NetBeans installer through terminal using: sh ./<NetBeans file name here>. And the installer will start.
To install Open JDK:
However, you may need to download and install the JDK first; which you can also do in terminal by typing: sudo apt-get install openjdk-7-jdk.
To install Oracle JDK:
This is taken from this link: http://www.wikihow.com/Install-Oracle-Java-JDK-on-Ubuntu-Linux
Remove open JDK from your system: sudo apt-get purge openjdk-\*
Create a new directory for the oracle JDK: sudo mkdir -p /usr/local/java
Download the Oracle Java JDK for linux by clicking here
Copy the Oracle Java binaries to the /usr/local/java directory: cd /home/userName/Downloads, sudo -s cp -r jfk-7u13-linux-x64.tar.gz /usr/local/java, cd /usr/local/java.
Extract the file: sudo -s tar xvzf jdk-7u13-linux-x64.tar.gz
Edit the system path file: sudo nano /etc/profile
Scroll to the bottom of the file and add this:
JAVA_HOME=/usr/local/java/jdk1.7.0_13
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
Save the file and exit (Ctrl+X), then enter "y" for nano.
Let Ubuntu know where the Oracle Java JDK is:
LOCN="/usr/local/jdk7"
sudo update-alternatives --install "/usr/bin/java" "java" "${LOCN}/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "${LOCN}/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "${LOCN}/bin/javaws" 1
Make sure Ubuntu knows to use this as the default JDK:
sudo update-alternatives --set java ${LOCN}/bin/java
sudo update-alternatives --set javac ${LOCN}/bin/javac
sudo update-alternatives --set javaws ${LOCN}/bin/javaws
Reload system path: /etc/profile, or just restart.
If you have trouble following my instructions then take a look at the link I posted above.
I would recommend using Open JDK instead though, as you can see; it's much easier to install.
I hope this helps.
Install Oracle JDK for ARM processor and Hard Float OS Image is here.
Oracle JDK for ARM Processor
And download Netbeans IDE 7.0.1 for Linux and install it.
Not to spoil your fun, but the A13 is a very weak SOC for this task.
I wouldn't even try anything below dual Cortex A15 with 2GB RAM (The Samsung XE303).
Oracle now releases the standard JDK8 for ARM Linux hardfloat so it is possible to install it on Debian/Ubuntu fairly easily:
Get JDK8 from Oracle's webpage (currently early access)
Extract th tar.gz-d JDK8 ARM/LInux/hfloat into /usr/lib/jvm/jdk1.8.0
Use update-alternatives (first answer)
Run "java -version" to check the results
..voila
I learned from Digital Ocean Docs how to manually install Oracle JDK on a headless ubuntu.
With a bit of Googling, I found following script to be useful.
wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz

netbeans installation error: can't initialize ui running in headless mode

I'm trying to install NetBeans on Linux Mint, and I'm getting the following error every time I run the installation script:
Configuring the installer...
Searching for JVM on the system...
Extracting installation data...
Running the installer wizard...
Can`t initialize UI
Running in headless mode
What should I do to get it working?
In case anyone has this problem in the future, Netbeans doesn't like OpenJDK 6 but -- fortunately -- it works fine with OpenJDK 7 (as expected as for Java 7 OpenJDK is the reference implementation). Just make sure you remove any Java 6 packages before installation attempts. On Ubuntu and Mint one can do:
sudo apt-get purge ^openjdk-6-*
sudo apt-get install openjdk-7-jdk
It should work afterwards.
Looks like Netbeans does not work properly with Openjdk. This is what I did (in Linux Mint 12):
sudo apt-get remove openjdk*
sudo apt-get install sun-java6-jdk
Then you will be able to run the .sh installer as usual.
I hit this same issue on Kubuntu 12.04 LTS but needed Sun JDK 6 for a project I'm maintaining. I stumbled upon Martin Wimpress' OAB-Java script (by way of help.ubuntu.com) which creates and installs a local apt repository for Sun JDK 6. You can find the latest instructions on Martin's github site which run as follows:
cd ~/
wget https://github.com/flexiondotorg/oab-java6/raw/0.2.7/oab-java.sh \
-O oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh
If you want to see what this script is doing while it is running then execute the following from another shell:
tail -f ./oab-java.sh.log
Alternatively, you can clone the OAB-Java repo and kick of the script from within it:
git clone git://github.com/flexiondotorg/oab-java6.git
cd oab-java6
sudo ./oab-java.sh
Either way, once that is in place follow Jose's instructions to remove openjdk and install sun jdk:
sudo apt-get remove openjdk*
sudo apt-get install sun-java6-jdk
One final note, the script accepts a -7 argument which will create and install a local apt repository for Oracle JDK 7 should you want to go that route.
I was able to get it to work by getting into the target system using ssh -X, then making sure DISPLAY was exported. That handles the X server issues.
Change the priority of the Oracle Java executables:
export PATH=/usr/java/latest/bin:$PATH
Run the installer:
./netbeans-8.1-linux.sh
What worked for me was installing default java environment from the terminal:
sudo apt-get install default-jre
The installation was a success - under "user".
The installation failed - under "su" (under Red Hat equivalent of "sudo"). With
Can`t initialize UI
Running in headless mode
No X11 DISPLAY variable was set, but this program performed an operation which requires it.
For me.