Prerequisites
=============
-* lui-solr is based on Solr 5.x, which requires Java 7. The package
+* masterkey-lui-solr5 is based on Solr 5.x, which requires Java 7. The package
depends on openjdk-7-jdk.
+* masterkey-lui-solr6 is based on Solr 6.x, which requires Java 8. The package
+depends on openjdk-8-jdk, available on backports for
+jessie. openjdk-8-jdk is _not_ available for wheezy. To install
+masterkey-lui-solr6 on wheezy is possible, bu it is outside the scope
+of this document.
+
Pre-installation
================
```
+* For masterkey-lui-solr6 on jessie: Add the backports apt
+repository. Add the following content to /etc/apt/sources.list:
+
+```
+ deb http://ftp.debian.org/debian jessie-backports main
+
+```
+
+And update your package list:
+
+```
+ sudo apt-get update
+
+```
+
* Masterkey LUI stores its Solr indexes by default in
/var/lib/masterkey/lui/solr. Ensure this partition is large enough to
accomodate your Solr indexes.
default on port 8983, and processes and files are owned by the
"lui-solr" user.
-* Install the masterkey-lui-solr5 package:
+* Install the masterkey-lui-solr5 or masterkey-lui-solr6 package:
```
- sudo apt-get install masterkey-lui-solr5
+ sudo apt-get install <masterkey-lui-solr5|masterkey-lui-solr6>
```