* reading https://launchpad.net/~kernel-ppa/+archive/ppa *
root@st-nlw-fe01:/etc/apt/sources.list.d# add-apt-repository ppa:kernel-ppa/ppa
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv 800AA67AE64A6D9E1859C561A8267963484B044F
gpg: requesting key 484B044F from hkp server keyserver.ubuntu.com
gpg: key 484B044F: public key "Launchpad PPA for Ubuntu Kernel PPA" imported
gpg: Total number processed: 1
gpg:               imported: 1  (RSA: 1)
root@st-nlw-fe01:/etc/apt/sources.list.d# apt-get update
Hit http://no.archive.ubuntu.com karmic Release.gpg
Ign http://ppa.launchpad.net karmic Release.gpg
Ign http://no.archive.ubuntu.com karmic/main Translation-en_US
Ign http://ppa.launchpad.net karmic/main Translation-en_US
Ign http://ppa.launchpad.net karmic Release
Ign http://no.archive.ubuntu.com karmic/restricted Translation-en_US
Ign http://ppa.launchpad.net karmic/main Packages
Ign http://ppa.launchpad.net karmic/main Packages
Ign http://no.archive.ubuntu.com karmic/universe Translation-en_US
Err http://ppa.launchpad.net karmic/main Packages
  403  Forbidden
Hit http://security.ubuntu.com karmic-security Release.gpg
Ign http://no.archive.ubuntu.com karmic/multiverse Translation-en_US
Hit http://no.archive.ubuntu.com karmic-updates Release.gpg
Ign http://no.archive.ubuntu.com karmic-updates/main Translation-en_US
Ign http://security.ubuntu.com karmic-security/main Translation-en_US
Ign http://no.archive.ubuntu.com karmic-updates/restricted Translation-en_US
Ign http://no.archive.ubuntu.com karmic-updates/universe Translation-en_US
Ign http://security.ubuntu.com karmic-security/restricted Translation-en_US
Ign http://no.archive.ubuntu.com karmic-updates/multiverse Translation-en_US
Hit http://no.archive.ubuntu.com karmic Release
Hit http://no.archive.ubuntu.com karmic-updates Release
Ign http://security.ubuntu.com karmic-security/universe Translation-en_US
Hit http://no.archive.ubuntu.com karmic/main Packages
Ign http://security.ubuntu.com karmic-security/multiverse Translation-en_US
Hit http://no.archive.ubuntu.com karmic/restricted Packages
Hit http://security.ubuntu.com karmic-security Release
Hit http://no.archive.ubuntu.com karmic/main Sources
Hit http://no.archive.ubuntu.com karmic/restricted Sources
Hit http://no.archive.ubuntu.com karmic/universe Packages
Hit http://no.archive.ubuntu.com karmic/universe Sources
Hit http://no.archive.ubuntu.com karmic/multiverse Packages
Hit http://no.archive.ubuntu.com karmic/multiverse Sources
Hit http://no.archive.ubuntu.com karmic-updates/main Packages
Hit http://no.archive.ubuntu.com karmic-updates/restricted Packages
Hit http://no.archive.ubuntu.com karmic-updates/main Sources
Hit http://no.archive.ubuntu.com karmic-updates/restricted Sources
Hit http://no.archive.ubuntu.com karmic-updates/universe Packages
Hit http://no.archive.ubuntu.com karmic-updates/universe Sources
Hit http://no.archive.ubuntu.com karmic-updates/multiverse Packages
Hit http://no.archive.ubuntu.com karmic-updates/multiverse Sources
Hit http://security.ubuntu.com karmic-security/main Packages
Hit http://security.ubuntu.com karmic-security/restricted Packages
Hit http://security.ubuntu.com karmic-security/main Sources
Hit http://security.ubuntu.com karmic-security/restricted Sources
Hit http://security.ubuntu.com karmic-security/universe Packages
Hit http://security.ubuntu.com karmic-security/universe Sources
Hit http://security.ubuntu.com karmic-security/multiverse Packages
Hit http://security.ubuntu.com karmic-security/multiverse Sources
W: Failed to fetch http://ppa.launchpad.net/kernel-ppa/ppa/ubuntu/dists/karmic/main/binary-amd64/Packages.gz  403  Forbidden

E: Some index files failed to download, they have been ignored, or old ones used instead.
root@st-nlw-fe01:/etc/apt/sources.list.d# apt-cache search linux-lts-backport-maverick
root@st-nlw-fe01:/etc/apt/sources.list.d# ^C
root@st-nlw-fe01:/etc/apt/sources.list.d# ^C
root@st-nlw-fe01:/etc/apt/sources.list.d# ^C
root@st-nlw-fe01:/etc/apt/sources.list.d# apt-cache search 2.6.35
linux-headers-2.6.35.4-custom - Header files related to Linux kernel, specifically,
root@st-nlw-fe01:/etc/apt/sources.list.d#