Updating packages lists
W: http://cz.archive.ubuntu.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: The repository 'http://buc.billera.eu/ubuntu64 binary/ Release' does not have a Release file.
W: GPG error: http://mirrors.wikimedia.org/debian jessie-backports InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010
W: The repository 'http://http.debian.net/debian jessie-backports InRelease' is not signed.
W: The repository 'http://ppa.launchpad.net/hanipouspilot/rtlwifi/ubuntu yakkety Release' does not have a Release file.
W: The repository 'http://ppa.launchpad.net/ingalex/super-boot-manager/ubuntu yakkety Release' does not have a Release file.
W: The repository 'http://ppa.launchpad.net/kiwixteam/ppa/ubuntu yakkety Release' does not have a Release file.
W: The repository 'http://ppa.launchpad.net/n-muench/burg/ubuntu yakkety Release' does not have a Release file.
E: Failed to fetch http://buc.billera.eu/ubuntu64/binary/Packages  404  Not Found [IP: 2001:4b78:1001::701 80]
E: Failed to fetch http://ppa.launchpad.net/hanipouspilot/rtlwifi/ubuntu/dists/yakkety/main/binary-i386/Packages  404  Not Found
E: Failed to fetch http://ppa.launchpad.net/ingalex/super-boot-manager/ubuntu/dists/yakkety/main/binary-i386/Packages  404  Not Found
E: Failed to fetch http://ppa.launchpad.net/kiwixteam/ppa/ubuntu/dists/yakkety/main/binary-i386/Packages  404  Not Found
E: Failed to fetch http://ppa.launchpad.net/n-muench/burg/ubuntu/dists/yakkety/main/binary-amd64/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
Warning:  apt-get update failed for some reason