diff --git a/CHANGELOG b/CHANGELOG
index 0c495e2ff9..b0dd428d8d 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -10,8 +10,8 @@ CONFIGS:
 	- Added named.conf.local and named.conf.options files
 	- Fixed: Useless section must be removed in generated Apache configuration files
 	- Fixed: diff package isn't available for Ubuntu > 12.04 (replaced by diffutils)
+	- Removed packages file for Ubuntu Oneiric Ocelot ( EOL 20130509)
 	- Updated php.ini files
-
 ENGINE:
 	- Added support for Apache + PHP FPM
 	- Added option allowing to disable/enable IPv6 support (Bind9)
@@ -36,6 +36,7 @@ GUI:
 
 SETUP:
 	- Added support for external repositories (Debian/Ubuntu)
+	- Fixed: add-apt-repository - unknown -y option (Ubuntu Lucid Lynx)
 	- Fixed: APT packages manager must be configured before any package installation
 	- Fixed: All MySQL secure installation tasks are now done by the i-MSCP installer
 	- Fixed: i-MSCP must allow usage of remote SQL server
diff --git a/autoinstaller/Adapter/Debian.pm b/autoinstaller/Adapter/Debian.pm
index 81014e3991..6815f161e6 100644
--- a/autoinstaller/Adapter/Debian.pm
+++ b/autoinstaller/Adapter/Debian.pm
@@ -108,8 +108,8 @@ sub preBuild
 
 		my @steps = (
 			[sub { $self->_preparePackagesList() }, 'Generating list of packages to uninstall and install'],
-			[sub { $self->_addExternalRepositories() }, 'Adding external repositories if any'],
-			[sub { $self->_addAptPreferencesFile() }, 'Adding APT preferences file if any'],
+			[sub { $self->_addExternalRepositories() }, 'Process external repositories if any'],
+			[sub { $self->_addAptPreferencesFile() }, 'Process APT preferences file if any'],
 			[sub { $self->_updatePackagesIndex() }, 'Updating packages index files']
 		);
 
@@ -274,6 +274,7 @@ sub _preparePackagesList
 	my $distribution = lc($lsbRelease->getId(1));
 	my $codename = lc($lsbRelease->getCodename(1));
 	my $packagesFile = "$FindBin::Bin/docs/" . ucfirst($distribution) . "/packages-$codename.xml";
+
 	my $rs = 0;
 
 	eval "use XML::Simple; 1";
@@ -285,6 +286,8 @@ sub _preparePackagesList
 	my $xml = XML::Simple->new(NoEscape => 1);
 	my $data = eval { $xml->XMLin($packagesFile, KeyAttr => 'name') };
 
+	fatal("Unable to read $packagesFile: $@") if($@);
+
 	for(sort keys %{$data}) {
 		if($data->{$_}->{'alternative'}) {
 			my $service  = $_;
@@ -481,13 +484,17 @@ sub _updateAptSourceList
 		my $section = $_;
 		my @seen = ();
 
-		while($content =~ /^deb\s+(?<uri>(?:https?|ftp)[^\s]+)\s+(?<distrib>[^\s]+)\s+(?<components>.+)$/mg) {
+		while($content =~ /^deb\s+(?<uri>(?:https?|ftp)[^\s]+)\s+(?<distrib>[^\s]+)\s+(?<components>.+)$/gm) {
 			my %repository = %+;
 
-			next if "$repository{'uri'}#$repository{'distrib'}" ~~ @seen;
+			if("$repository{'uri'} $repository{'distrib'}" ~~ @seen) {
+				debug("Repository '$repository{'uri'} $repository{'distrib'}' already checked for '$section' section. Skipping...");
+				next;
+			}
 
-			# is a section available in repository?
-			unless($repository{'components'} =~ /\s?$section(\s|$)/) {
+			debug("\nChecking repository '$repository{'uri'} $repository{'distrib'}' for '$section' section.");
+
+			unless($content =~ /^deb\s+$repository{'uri'}\s+\b$repository{'distrib'}\b\s+.*\b$section\b/m) {
 				my $uri = "$repository{'uri'}/dists/$repository{'distrib'}/$section/";
 				$rs = execute("wget --spider $uri", \$stdout, \$stderr);
 				debug($stdout) if $stdout;
@@ -495,16 +502,17 @@ sub _updateAptSourceList
 
 				unless ($rs) {
 					$foundSection = 1;
-					debug("Enabling section '$section' on $repository{uri}");
-					$content =~ s/^($&)$/$1 $section/mg;
+					debug("Enabling section '$section' on '$repository{uri} $repository{'distrib'}'");
+					$content =~ s/^($&)$/$1 $section/m;
+
 					$needUpdate = 1;
-					push @seen, "$repository{'uri'} $repository{'distrib'}";
 				}
 			} else {
-				debug("Section '$section' is already enabled on $repository{uri}");
+				debug("Section '$section' already enabled on '$repository{uri} $repository{'distrib'}'");
 				$foundSection = 1;
-				push @seen, "$repository{'uri'} $repository{'distrib'}";
 			}
+
+			push @seen, "$repository{'uri'} $repository{'distrib'}";
 		}
 
 		unless($foundSection) {
@@ -519,9 +527,6 @@ sub _updateAptSourceList
 
 		$rs = $file->save();
 		return $rs if $rs;
-
-		$rs = $self->_updatePackagesIndex();
-		return $rs if $rs;
 	}
 
 	0;
@@ -544,14 +549,14 @@ sub _addExternalRepositories
 
 	if(@{$self->{'externalRepositoriesToRemove'}} || @{$self->{'externalRepositories'}}) {
 
-		my $file = iMSCP::File->new('filename' => '/etc/apt/sources.list');
+		my $sourceListFile = iMSCP::File->new('filename' => '/etc/apt/sources.list');
 
 		unless (-f '/etc/apt/sources.list.bkp') {
-			$rs = $file->copyFile('/etc/apt/sources.list.bkp');;
+			$rs = $sourceListFile->copyFile('/etc/apt/sources.list.bkp');
 			return $rs if $rs;
 		}
 
-		my $content = $file->get();
+		my $content = $sourceListFile->get();
 
 		unless (defined $content) {
 			error('Unable to read /etc/apt/sources.list file');
@@ -584,9 +589,7 @@ sub _addExternalRepositories
 			return $rs if $rs;
 
 			# Schedule packages for deletion
-			if($stdout) {
-				@{$self->{'packagesToUninstall'}} = (@{$self->{'packagesToUninstall'}}, split("\n", $stdout));
-			}
+			@{$self->{'packagesToUninstall'}} = (@{$self->{'packagesToUninstall'}}, split("\n", $stdout)) if $stdout;
 
 			# Remove the repository from the sources.list file
 			$content =~ s/\n?(deb|deb-src)\s+$_->{'repository'}\n?//gm;
@@ -626,10 +629,10 @@ sub _addExternalRepositories
 		}
 
 		if($needUpdate) {
-			$rs = $file->set($content);
+			$rs = $sourceListFile->set($content);
 			return $rs if $rs;
 
-			$file->save();
+			$sourceListFile->save();
 			return $rs if $rs;
 		}
 	}
diff --git a/autoinstaller/Adapter/Ubuntu.pm b/autoinstaller/Adapter/Ubuntu.pm
index 59da7cd4ab..f83d5de20b 100644
--- a/autoinstaller/Adapter/Ubuntu.pm
+++ b/autoinstaller/Adapter/Ubuntu.pm
@@ -97,14 +97,16 @@ sub _init
 sub _addExternalRepositories
 {
 	my $self = shift;
+
+	my $distroRelease = iMSCP::LsbRelease->getInstance()->getRelease(1);
 	my $rs = 0;
 
 	if(@{$self->{'externalRepositoriesToRemove'}} || @{$self->{'externalRepositories'}}) {
 
-		my $file = iMSCP::File->new('filename' => '/etc/apt/sources.list');
+		my $sourceListFile = iMSCP::File->new('filename' => '/etc/apt/sources.list');
 
 		unless(-f '/etc/apt/sources.list.bkp') {
-			$rs = $file->copyFile('/etc/apt/sources.list.bkp');
+			$rs = $sourceListFile->copyFile('/etc/apt/sources.list.bkp');
 			return $rs if $rs;
 		}
 
@@ -134,14 +136,36 @@ sub _addExternalRepositories
 			return $rs if $rs;
 
 			# Schedule packages for deletion
-			if($stdout) {
-				@{$self->{'packagesToUninstall'}} = (@{$self->{'packagesToUninstall'}}, split("\n", $stdout));
-			}
+			@{$self->{'packagesToUninstall'}} = (@{$self->{'packagesToUninstall'}}, split("\n", $stdout)) if $stdout;
 
-			# Remove the repository from the sources.list file
-			$rs = execute("add-apt-repository -y -r $_->{'repository'}", \$stdout, \$stderr);
-			debug($stdout) if $stdout;
-			error($stderr) if $stderr && $rs;
+			# Remove the repository
+			if($distroRelease > 10.04) {
+				$rs = execute("add-apt-repository -y -r $_->{'repository'}", \$stdout, \$stderr);
+				debug($stdout) if $stdout;
+				error($stderr) if $stderr && $rs;
+			} else {
+				# add-apt-repository command as provided by Ubuntu lucid doesn't provide any option
+				if($_->{'repository'} =~ m%^ppa:(.*)/(.*)%) { # PPA repository
+					my $ppaFile = "/etc/apt/sources.list.d/$1-$2-*";
+
+					if(glob $ppaFile) {
+						$rs = execute("$main::imscpConfig{'CMD_RM'} $ppaFile", \$stdout, \$stderr);
+						debug($stdout) if $stdout;
+						error($stderr) if $stderr && $rs;
+						return $rs if $rs;
+					}
+				} else { # Normal repository
+					# Remove the repository from the sources.list file
+					my $content = $sourceListFile->get();
+					$content =~ s/\n?(deb|deb-src)\s+$_->{'repository'}\n?//gm;
+
+					$rs = $sourceListFile->set($content);
+					return $rs if $rs;
+
+					$rs = $sourceListFile->save();
+					return $rs if $rs;
+				}
+			}
 		}
 
 		eval "use List::MoreUtils qw(uniq); 1";
@@ -153,18 +177,26 @@ sub _addExternalRepositories
 		# Add needed external repositories
 		for(@{$self->{'externalRepositories'}}) {
 			if($_->{'repository'} =~ /^ppa:/) { # PPA repository
-				if($_->{'repository_key_srv'}) {
-					$cmd = "add-apt-repository -y -k $_->{'repository_key_srv'} $_->{'repository'}";
-				} else {
-					$cmd = "add-apt-repository -y $_->{'repository'}";
-				}
+				if($distroRelease > 10.4) {
+					if($_->{'repository_key_srv'}) {
+						$cmd = "add-apt-repository -y -k $_->{'repository_key_srv'} $_->{'repository'}";
+					} else {
+						$cmd = "add-apt-repository -y $_->{'repository'}";
+					}
+				 } else {
+					$cmd = "add-apt-repository $_->{'repository'}";
+				 }
 
 				$rs = execute($cmd, \$stdout, \$stderr);
 				debug($stdout) if $stdout;
 				error($stderr) if $stderr && $rs;
 				return $rs if $rs
-			} else { # normal repository
-				$rs = execute("add-apt-repository -y $_->{'repository'}", \$stdout, \$stderr);
+			} else { # Normal repository
+				if($distroRelease > 10.4) {
+					$rs = execute("add-apt-repository -y $_->{'repository'}", \$stdout, \$stderr);
+				} else {
+					$rs = execute("add-apt-repository $_->{'repository'}", \$stdout, \$stderr);
+				}
 				debug($stdout) if $stdout;
 				error($stderr) if $stderr && $rs;
 				return $rs if $rs;
diff --git a/docs/Ubuntu/packages-lucid.xml b/docs/Ubuntu/packages-lucid.xml
index 64be88d685..f7f2869874 100644
--- a/docs/Ubuntu/packages-lucid.xml
+++ b/docs/Ubuntu/packages-lucid.xml
@@ -14,7 +14,7 @@
                 <package>apache2-mpm-itk</package>
                 <package>libapache2-mod-php5</package>
             </apache_itk>
-            <apache_php_fpm repository="ppa:brianmercer/php5" repository_origin="LP-PPA-brianmercer-php5">
+            <apache_php_fpm repository="ppa:fabianarias/php5" repository_origin="LP-PPA-fabianarias-php5">
                 <package>apache2</package>
                 <package>apache2-mpm-worker</package>
                 <package>libapache2-mod-fastcgi</package>
diff --git a/docs/Ubuntu/packages-oneiric.xml b/docs/Ubuntu/packages-oneiric.xml
deleted file mode 100644
index 0179873189..0000000000
--- a/docs/Ubuntu/packages-oneiric.xml
+++ /dev/null
@@ -1,195 +0,0 @@
-<packages>
-    <httpd>
-        <alternative default="apache_fcgi">
-            <apache_fcgi>
-                <package>apache2</package>
-                <package>apache2-mpm-worker</package>
-                <package>apache2-suexec</package>
-                <package>libapache2-mod-fcgid</package>
-                <package>libapache2-mod-fastcgi</package>
-                <package>php5-cgi</package>
-            </apache_fcgi>
-            <apache_itk>
-                <package>apache2</package>
-                <package>apache2-mpm-itk</package>
-                <package>libapache2-mod-php5</package>
-            </apache_itk>
-            <apache_php_fpm>
-                <package>apache2</package>
-                <package>apache2-mpm-worker</package>
-                <package>libapache2-mod-fastcgi</package>
-                <package>php5-fpm</package>
-            </apache_php_fpm>
-        </alternative>
-    </httpd>
-    <po>
-        <alternative default="courier">
-            <courier>
-                <package>courier-imap</package>
-                <package>courier-imap-ssl</package>
-                <package>courier-pop</package>
-                <package>courier-pop-ssl</package>
-                <package>libgamin0</package>
-                <package>maildrop</package>
-            </courier>
-            <dovecot>
-                <package>dovecot-imapd</package>
-                <package>dovecot-pop3d</package>
-                <package>dovecot-mysql</package>
-                <package>dovecot-sieve</package>
-                <package>dovecot-managesieved</package>
-            </dovecot>
-        </alternative>
-    </po>
-    <mta>
-        <alternative default="postfix">
-            <postfix>
-                <package>postfix</package>
-            </postfix>
-        </alternative>
-    </mta>
-    <ftpd>
-        <alternative default="proftpd">
-            <proftpd>
-                <package>proftpd-basic</package>
-                <package>proftpd-mod-mysql</package>
-            </proftpd>
-        </alternative>
-    </ftpd>
-    <named>
-        <alternative default="bind">
-            <bind>
-                <package>bind9</package>
-            </bind>
-        </alternative>
-    </named>
-    <sql>
-        <alternative default="mysql_5.1">
-            <mysql_5.1
-                    pinning_package="mysql-client mysql-server mysql-common libmysqlclient16"
-                    pinning_pin="release o=Ubuntu,n=oneiric"
-                    pinning_pin_priority="1001"
-                    >
-                <package>mysql-server</package>
-                <package>mysql-client</package>
-                <package>mysql-common</package>
-            </mysql_5.1>
-            <mariadb_5.3
-                    pinning_package="mariadb-client mariadb-server mariadb-common mysql-common libmysqlclient16"
-                    pinning_pin="origin mirror2.hs-esslingen.de"
-                    pinning_pin_priority="1001"
-                    repository="http://mirror2.hs-esslingen.de/mariadb/repo/5.3/ubuntu"
-                    repository_origin="MariaDB"
-                    repository_key_srv="keyserver.ubuntu.com"
-                    repository_key_id="0xcbcb082a1bb943db"
-                    >
-                <package>mariadb-client</package>
-                <package>mariadb-server</package>
-                <package>mysql-common</package>
-            </mariadb_5.3>
-            <mariadb_5.5
-                    pinning_package="mariadb-client mariadb-server mariadb-common mysql-common libmysqlclient18"
-                    pinning_pin="origin mirror.netcologne.de"
-                    pinning_pin_priority="1001"
-                    repository="http://mirror.netcologne.de/mariadb/repo/5.5/ubuntu"
-                    repository_origin="MariaDB"
-                    repository_key_srv="keyserver.ubuntu.com"
-                    repository_key_id="0xcbcb082a1bb943db"
-                    >
-                <package>mariadb-client</package>
-                <package>mariadb-server</package>
-                <package>mysql-common</package>
-            </mariadb_5.5>
-            <remote_server>
-                <package>mysql-client</package>
-            </remote_server>
-        </alternative>
-    </sql>
-    <php>
-        <package>php5</package>
-        <package>php5-cli</package>
-        <package>php-pear</package>
-        <package>php5-adodb</package>
-        <package>php5-gd</package>
-        <package>php-gettext</package>
-        <package>php5-intl</package>
-        <package>php5-mcrypt</package>
-        <package>php5-mysql</package>
-        <package>php5-suhosin</package>
-    </php>
-    <perl>
-        <package>perl</package>
-        <package>perl-base</package>
-        <package>libperl5.12</package>
-        <package>libberkeleydb-perl</package>
-        <package>libcrypt-blowfish-perl</package>
-        <package>libcrypt-cbc-perl</package>
-        <package>libcrypt-passwdmd5-perl</package>
-        <package>libdata-validate-domain-perl</package>
-        <package>libdata-validate-ip-perl</package>
-        <package>libdate-calc-perl</package>
-        <package>libdate-manip-perl</package>
-        <package>libdatetime-perl</package>
-        <package>libdbd-mysql-perl</package>
-        <package>libdbi-perl</package>
-        <package>libdigest-md5-perl</package>
-        <package>libemail-valid-perl</package>
-        <package>libfile-copy-recursive-perl</package>
-        <package>libfile-mimeinfo-perl</package>
-        <package>libio-socket-inet6-perl</package>
-        <package>libio-stringy-perl</package>
-        <package>libmail-sendmail-perl</package>
-        <package>libmailtools-perl</package>
-        <package>libmime-perl</package>
-        <package>libnet-dns-perl</package>
-        <package>libnet-libidn-perl</package>
-        <package>libnet-netmask-perl</package>
-        <package>libnet-smtp-server-perl</package>
-        <package>libsnmp-session-perl</package>
-        <package>libterm-readkey-perl</package>
-        <package>libterm-readpassword-perl</package>
-        <package>libhtml-parser-perl</package>
-        <package>libtimedate-perl</package>
-        <package>libxml-parser-perl</package>
-        <package>libxml-simple-perl</package>
-        <package>libemail-simple-perl</package>
-        <package>libjson-perl</package>
-    </perl>
-    <other>
-        <package>at</package>
-        <package>bash</package>
-        <package>pbzip2</package>
-        <package>bzip2</package>
-        <package>awstats</package>
-        <package>chkrootkit</package>
-        <package>dialog</package>
-        <package>diffutils</package>
-        <package>dnsutils</package>
-        <package>gcc</package>
-        <package>gzip</package>
-        <package>iptables</package>
-        <package>ispell</package>
-        <package>libc6-dev</package>
-        <package>libexpat1</package>
-        <package>libexpat1-dev</package>
-        <package>libsasl2-modules</package>
-        <package>libmcrypt4</package>
-        <package>locales</package>
-        <package>lynx</package>
-        <package>lzma</package>
-        <package>make</package>
-        <package>openssl</package>
-        <package>original-awk</package>
-        <package>patch</package>
-        <package>policyd-weight</package>
-        <package>postgrey</package>
-        <package>procmail</package>
-        <package>rkhunter</package>
-        <package>sasl2-bin</package>
-        <package>ssh</package>
-        <package>tar</package>
-        <package>wget</package>
-        <package>curl</package>
-        <package>git</package>
-    </other>
-</packages>