gn http://ppa.launchpad.net lucid/main Packages
Hit http://us.archive.ubuntu.com lucid-backports/multiverse Packages
Ign http://ppa.launchpad.net lucid/main Packages
Err http://ppa.launchpad.net lucid/main Packages
  404  Not Found
Err http://ppa.launchpad.net lucid/main Packages
  404  Not Found
Fetched 57.4kB in 6s (8,295B/s)
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B725097B3ACC3965
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 00A6F0A3C300EE8C
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1EBA3D372A2356C9
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 1EBA3D372A2356C9
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY EF4186FE247510BE
W: Failed to fetch http://ppa.launchpad.net/nginx//ubuntu/dists/lucid/main/binary-i386/Packages.gz  404  Not Found

W: Failed to fetch http://ppa.launchpad.net/nginx/php5/ubuntu/dists/lucid/main/binary-i386/Packages.gz  404  Not Found

E: Some index files failed to download, they have been ignored, or old ones used instead.