Pear OS - The complete Mac OS clone for Ubuntu lovers.

This Linux distribution based on Ubuntu give you Apple Mac experience.

Descritpion from the home page of Pear OS.

Pear OS Linux is a French distribution. It was created by David Tavares, Deux-Sèvres (79), France.
The purpose of Pear OS is to create an operating system (64 bit) based on linux (ubuntu mini remix) and propose a simple but powerful interface.

Pear OS is free (thanks to your donations) and we hope you enjoy it.

It is operating out of the box, with a complete multimedia experienceand is extremely easy to use.
Users are encouraged to send their comments to the project so that their ideas can be used to improve Pear OS.
Based on Ubuntu (debian), it provides an impressive repository.

Installing Dspace 1.8 on Ubuntu 10.04

Check following link for installing Dspace new version on Ubuntu 12.04

Installation of prerequisite applications

Open  Applications > Accessories > Terminal and execute following commands. Text in italics are commands to be executed.

sudo apt-get install openjdk-6-jdk

sudo apt-get install tasksel
sudo tasksel

Select the following packages.
Use space bar for select applications from list.
[*] LAMP server
[*] PostgreSQL database
[*] Tomcat Java server
  use tab to select OK button and enter

sudo apt-get install ant maven2 

Create the database user (dspace)

sudo su postgres

createuser -U postgres -d -A -P dspace

enter password for new role (select a password like dspace)
Shall the new role be allowed to create more new roles? (y/n) n

Exit from the promp, type

Allow the database user (dspace) to connect to the database

sudo gedit /etc/postgresql/8.4/main/pg_hba.conf

Add this line to the configuration file at the end:  local all dspace md5
save and close the file 

Restart PostgreSQL : sudo su      enter,

then paste the following line and enter

/etc/init.d/postgresql-8.4 restart

Create the Unix 'dspace' user, update the passwd, create the directory in which you will install dspace, and ensure that the Unix 'dspace' user has write privileges on that directory:

sudo useradd -m dspace

sudo passwd dspace (enter any password like dspace for the new user dspace)

sudo mkdir /dspace

sudo chown dspace /dspace

Create the PostgreSQL 'dspace' database.

sudo -u dspace createdb -U dspace -E UNICODE dspace 

Configure Tomcat to know about the DSpace webapps.

sudo gedit /etc/tomcat6/server.xml

 Insert the following chunk of text just above the closing </Host>
<!-- Define a new context path for all DSpace web apps -->
<Context path="/xmlui" docBase="/dspace/webapps/xmlui" allowLinking="true"/>
<Context path="/sword" docBase="/dspace/webapps/sword" allowLinking="true"/>
<Context path="/oai" docBase="/dspace/webapps/oai" allowLinking="true"/>
<Context path="/jspui" docBase="/dspace/webapps/jspui" allowLinking="true"/>
<Context path="/lni" docBase="/dspace/webapps/lni" allowLinking="true"/>
<Context path="/solr" docBase="/dspace/webapps/solr" allowLinking="true"/>
save and close  the file a

This following  step downloads the compressed archive from SourceForge, and unpacks it in your current directory. The dspace-1.x.x-src-release directory is typically referred to as [dspace-src].

sudo mkdir /build
sudo chmod -R 777 /build
cd /build
tar -xvjf dspace-1.8.0-src-release.tar.bz2

cd /build/dspace-1.8.0-src-release
mvn -U package
cd dspace/target/dspace-1.8.0-build
sudo ant fresh_install

Fix Tomcat permissions, and restart the Tomcat server

sudo chown tomcat6:tomcat6 /dspace -R

Restart Tomcat

/etc/init.d/tomcat6 restart

 Make an initial administrator account (an e-person) in DSpace:

/dspace/bin/dspace create-administrator

Test it out in your browser

That is all that is required to install DSpace on Ubuntu. There are two main webapps that provide a similar turn-key repository interface