dCore-java-installer Command
The dCore-java-installer command is not included in a base dCore install. It can be imported separately from the dCore pre-built repository. Once installed, running dCore-java-installer assists to download Oracle's most recent Java Runtime Environment (JRE 8) and creates a JRE extension named after the JRE version (eg. jre-8u92-linux-i586.sce). The Java browser plugin only works in Firefox and Iceweasel, Chrome/Chromium no longer provides support.
To install Oracle's JRE 8, run:
sce-import -o dCore-java-installer sce-load dCore-java-installer dCore-java-installer
The Java Runtime Environment has frequent documented security issues. Remove any old JRE SCEs and, as noted below, re-run the dCore-java-installer script and repeat the process when Java updates available (eg. Firefox will flag Java plugin out of date).
End of script Java usage notes are provided, example:
* jre-8u92-linux-i586 added to /etc/sysconfig/tcedir/sceboot.lst.
* Run sce-load jre-8u92-linux-i586 to load this extension.
* Manually remove /home/tc/jre-8u92-linux-i586.tar.gz as desired.
* If old version installed:
* Remove old /etc/sysconfig/tcedir/sceboot.lst entry
* Reboot system
* Firefox Java plugin installed, restart browser to activate.
* Java plugin test:
* http://java.com/en/ -> Do i have Java?
* http://www.test-java.com/
* Import and load bash to launch ControlPanel (or jcontrol).
* Default security high so most web applets won't run, at own risk use
ControlPanel to add Exception Sites and modify security settings.
* ControlPanel can also remove temporary files, enable debug console, etc.
* Re-run this script to install Java updates.
Usage options from the dCore-java-installer –help command:
dCore-java-installer - Create a JRE 8 SCE (Java Runtime Environment, eg.
jre-8u92-linux-i586.sce). Imports JRE only, not JDK
(Java Development Kit), may use option combinations.
If >1 web browser installed select from list, opens Oracle Java JRE 8 download
site, manually download file (eg. jre-8u92-linux-i586.tar.gz) to home
(eg. /home/tc/) or /tmp directory, then prompted to create the SCE.
Re-run this script and repeat the process when Java updates available
(eg. Firefox will flag Java plugin out of date).
Oracle JRE 8 download site:
www.oracle.com/technetwork/java/javase/downloads/jre8-downloads-2133155.html
Usage:
dCore-java-installer Create a Java SCE.
dCore-java-installer -b Create a Java SCE, add SCE to sceboot.lst.
dCore-java-installer -e Create a Java SCE, search home and /tmp
directory for an already downloaded jre-8*.tar.gz file.
dCore-java-installer -r Create a Java SCE, create SCE in RAM.
