apt-get install from ppa.launchpad.net repository

Question

Some time ago I installed zfs from ppa.launchpad.net repository for Ubuntu Server Oneric 11.10 by

add-apt-repository ppa:zfs-native/stable
apt-get update
apt-get install spl-linux ubuntu-zfs  zfs-linux

And it worked. But now the same commands in another Ubuntu Server Oneric 11.10 system they are not working.

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 11.10
Release:        11.10
Codename:       oneiric

uname -a
Linux us1 3.0.0-12-server #20-Ubuntu SMP Fri Oct 7 16:36:30 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

apt-get update
Ign http://security.ubuntu.com oneiric-security InRelease
Ign http://ppa.launchpad.net oneiric InRelease
Ign http://us.archive.ubuntu.com oneiric InRelease
Ign http://us.archive.ubuntu.com oneiric-updates InRelease
Ign http://us.archive.ubuntu.com oneiric-backports InRelease
Hit http://security.ubuntu.com oneiric-security Release.gpg
Hit http://ppa.launchpad.net oneiric Release.gpg
Hit http://us.archive.ubuntu.com oneiric Release.gpg
Hit http://security.ubuntu.com oneiric-security Release
Hit http://us.archive.ubuntu.com oneiric-updates Release.gpg
Hit http://ppa.launchpad.net oneiric Release
Hit http://us.archive.ubuntu.com oneiric-backports Release.gpg
Hit http://security.ubuntu.com oneiric-security/main Sources
Hit http://ppa.launchpad.net oneiric/main Sources
Hit http://us.archive.ubuntu.com oneiric Release
Hit http://security.ubuntu.com oneiric-security/restricted Sources
Hit http://security.ubuntu.com oneiric-security/universe Sources
Hit http://security.ubuntu.com oneiric-security/multiverse Sources
Hit http://security.ubuntu.com oneiric-security/main amd64 Packages
Hit http://security.ubuntu.com oneiric-security/restricted amd64 Packages
Hit http://ppa.launchpad.net oneiric/main amd64 Packages
Hit http://ppa.launchpad.net oneiric/main i386 Packages
Ign http://ppa.launchpad.net oneiric/main TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-updates Release
Hit http://security.ubuntu.com oneiric-security/universe amd64 Packages
Hit http://security.ubuntu.com oneiric-security/multiverse amd64 Packages
Hit http://security.ubuntu.com oneiric-security/main i386 Packages
Hit http://security.ubuntu.com oneiric-security/restricted i386 Packages
Hit http://security.ubuntu.com oneiric-security/universe i386 Packages
Hit http://security.ubuntu.com oneiric-security/multiverse i386 Packages
Hit http://security.ubuntu.com oneiric-security/main TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-backports Release
Hit http://us.archive.ubuntu.com oneiric/main Sources
Hit http://us.archive.ubuntu.com oneiric/restricted Sources
Hit http://us.archive.ubuntu.com oneiric/universe Sources
Hit http://us.archive.ubuntu.com oneiric/multiverse Sources
Hit http://security.ubuntu.com oneiric-security/multiverse TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted TranslationIndex
Hit http://security.ubuntu.com oneiric-security/universe TranslationIndex
Hit http://us.archive.ubuntu.com oneiric/main amd64 Packages
Hit http://us.archive.ubuntu.com oneiric/restricted amd64 Packages
Hit http://us.archive.ubuntu.com oneiric/universe amd64 Packages
Hit http://us.archive.ubuntu.com oneiric/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com oneiric/main i386 Packages
Hit http://security.ubuntu.com oneiric-security/main Translation-en
Hit http://security.ubuntu.com oneiric-security/multiverse Translation-en
Hit http://us.archive.ubuntu.com oneiric/restricted i386 Packages
Hit http://us.archive.ubuntu.com oneiric/universe i386 Packages
Hit http://us.archive.ubuntu.com oneiric/multiverse i386 Packages
Hit http://us.archive.ubuntu.com oneiric/main TranslationIndex
Hit http://us.archive.ubuntu.com oneiric/multiverse TranslationIndex
Hit http://security.ubuntu.com oneiric-security/restricted Translation-en
Hit http://us.archive.ubuntu.com oneiric/restricted TranslationIndex
Hit http://us.archive.ubuntu.com oneiric/universe TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-updates/main Sources
Hit http://us.archive.ubuntu.com oneiric-updates/restricted Sources
Hit http://us.archive.ubuntu.com oneiric-updates/universe Sources
Hit http://security.ubuntu.com oneiric-security/universe Translation-en
Hit http://us.archive.ubuntu.com oneiric-updates/multiverse Sources
Hit http://us.archive.ubuntu.com oneiric-updates/main amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/restricted amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/universe amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/main i386 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/restricted i386 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/universe i386 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/multiverse i386 Packages
Hit http://us.archive.ubuntu.com oneiric-updates/main TranslationIndex
Ign http://ppa.launchpad.net oneiric/main Translation-en_US
Hit http://us.archive.ubuntu.com oneiric-updates/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-updates/restricted TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-updates/universe TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-backports/main Sources
Hit http://us.archive.ubuntu.com oneiric-backports/restricted Sources
Ign http://ppa.launchpad.net oneiric/main Translation-en
Hit http://us.archive.ubuntu.com oneiric-backports/universe Sources
Hit http://us.archive.ubuntu.com oneiric-backports/multiverse Sources
Hit http://us.archive.ubuntu.com oneiric-backports/main amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/restricted amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/universe amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/multiverse amd64 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/main i386 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/restricted i386 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/universe i386 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/multiverse i386 Packages
Hit http://us.archive.ubuntu.com oneiric-backports/main TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-backports/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-backports/restricted TranslationIndex
Hit http://us.archive.ubuntu.com oneiric-backports/universe TranslationIndex
Hit http://us.archive.ubuntu.com oneiric/main Translation-en
Hit http://us.archive.ubuntu.com oneiric/multiverse Translation-en
Hit http://us.archive.ubuntu.com oneiric/restricted Translation-en
Hit http://us.archive.ubuntu.com oneiric/universe Translation-en
Hit http://us.archive.ubuntu.com oneiric-updates/main Translation-en
Hit http://us.archive.ubuntu.com oneiric-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com oneiric-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com oneiric-updates/universe Translation-en
Hit http://us.archive.ubuntu.com oneiric-backports/main Translation-en
Hit http://us.archive.ubuntu.com oneiric-backports/multiverse Translation-en
Hit http://us.archive.ubuntu.com oneiric-backports/restricted Translation-en
Hit http://us.archive.ubuntu.com oneiric-backports/universe Translation-en
Reading package lists... Done

So now I cant install this packages:

apt-get install spl-linux ubuntu-zfs  zfs-linux
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package spl-linux
E: Unable to locate package zfs-linux

apt-cache policy spl-linux
N: Unable to locate package spl-linux

apt-cache policy ubuntu-zfs ubuntu-zfs:
Installed: (none) Candidate: 
4~oneiric Version table: 4~oneiric 0 500
http://ppa.launchpad.net/zfs-native/stable/ubuntu/oneiric/main amd64 Packages 

apt-cache policy zfs-linux
N: Unable to locate package zfs-linux

cat /etc/apt/sources.list

deb http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric main restricted
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates main restricted
deb http://us.archive.ubuntu.com/ubuntu/ oneiric universe
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric universe
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates universe
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates universe
deb http://us.archive.ubuntu.com/ubuntu/ oneiric multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-updates multiverse
deb http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
deb-src http://us.archive.ubuntu.com/ubuntu/ oneiric-backports main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu oneiric-security main restricted
deb-src http://security.ubuntu.com/ubuntu oneiric-security main restricted
deb http://security.ubuntu.com/ubuntu oneiric-security universe
deb-src http://security.ubuntu.com/ubuntu oneiric-security universe
deb http://security.ubuntu.com/ubuntu oneiric-security multiverse
deb-src http://security.ubuntu.com/ubuntu oneiric-security multiverse

ls /etc/apt/sources.list.d/
zfs-native-stable-oneiric.list

cat /etc/apt/sources.list.d/zfs-native-stable-oneiric.list
deb http://ppa.launchpad.net/zfs-native/stable/ubuntu oneiric main
deb-src http://ppa.launchpad.net/zfs-native/stable/ubuntu oneiric main

What I have to do to fix this problem?