Err https://packages.medibuntu.org intrepid/non-free Packages                                                                                 
  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt                                                         
Err https://packages.medibuntu.org intrepid/free Packages                                                                                     
  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt                                                         
Err https://packages.medibuntu.org intrepid/free Sources                                                                                     
  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt                                                         
Err https://packages.medibuntu.org intrepid/non-free Sources                                                                                 
  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt                                                         
Fetched 39,1kB in 6s (5660B/s)                                                                                                               
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 60D11217247D1CFF                                                                                                                 
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FC66403D8670A035                                                                                                                 
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6AF0E1940624A220                                                                                                                 
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 28A8205077558DD0                                                                                                                 
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5DC4E17435661D98
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7D2C7A23BF810CD5
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 665F9AEFE1098513
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4874D3686E80C6B7
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9BDB3D89CE49EC21
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 632D16BB0C713DA6
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C5E6A5ED249AD24C
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 638ABCA0FA3A1271
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 978228591BD3A65C
W: GPG error: http://ppa.launchpad.net intrepid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY FE8956A73C5EE1C9
W: Failed to fetch http://help.ubuntu.com/community/Medibuntu/dists/intrepid/universe/binary-i386/Packages.gz  301 Moved Permanently

W: Failed to fetch http://nightlies.videolan.org/build/intrepid-i386/arch/./Packages.gz  404 Not Found

W: Failed to fetch http://repoubuntusoftware.info/dists/intrepid/all/binary-i386/Packages.gz  404 Not Found

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

W: Failed to fetch https://packages.medibuntu.org/dists/intrepid/non-free/binary-i386/Packages.gz  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt

W: Failed to fetch https://packages.medibuntu.org/dists/intrepid/free/binary-i386/Packages.gz  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt

W: Failed to fetch https://packages.medibuntu.org/dists/intrepid/free/source/Sources.gz  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt

W: Failed to fetch https://packages.medibuntu.org/dists/intrepid/non-free/source/Sources.gz  server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt

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