Get:1 http://ppa.launchpad.net/webupd8team/java/ubuntu yakkety InRelease [17.6 kB]
Get:2 http://archive.canonical.com/ubuntu yakkety InRelease [11.5 kB]
Get:3 http://de.archive.ubuntu.com/ubuntu yakkety InRelease [247 kB]
Ign:4 http://dl.google.com/linux/chrome/deb stable InRelease
Ign:2 http://archive.canonical.com/ubuntu yakkety InRelease
Ign:1 http://ppa.launchpad.net/webupd8team/java/ubuntu yakkety InRelease
Hit:5 http://dl.google.com/linux/chrome/deb stable Release
Get:6 http://dl.google.com/linux/chrome/deb stable Release.gpg [916 B]
Ign:6 http://dl.google.com/linux/chrome/deb stable Release.gpg
Get:7 http://deb.opera.com/opera stable InRelease [2592 B]
Ign:7 http://deb.opera.com/opera stable InRelease
Ign:3 http://de.archive.ubuntu.com/ubuntu yakkety InRelease
Get:8 http://de.archive.ubuntu.com/ubuntu yakkety-security InRelease [93.3 kB]
Ign:8 http://de.archive.ubuntu.com/ubuntu yakkety-security InRelease
Get:9 http://de.archive.ubuntu.com/ubuntu yakkety-updates InRelease [94.5 kB]
Ign:9 http://de.archive.ubuntu.com/ubuntu yakkety-updates InRelease
Get:10 http://de.archive.ubuntu.com/ubuntu yakkety-proposed InRelease [95.7 kB]
Ign:10 http://de.archive.ubuntu.com/ubuntu yakkety-proposed InRelease
Get:11 http://de.archive.ubuntu.com/ubuntu yakkety-backports InRelease [92.2 kB]
Ign:11 http://de.archive.ubuntu.com/ubuntu yakkety-backports InRelease
Fetched 655 kB in 6s (106 kB/s)
Reading package lists... Done
W: GPG error: http://archive.canonical.com/ubuntu yakkety InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://archive.canonical.com/ubuntu yakkety InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://ppa.launchpad.net/webupd8team/java/ubuntu yakkety InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://ppa.launchpad.net/webupd8team/java/ubuntu yakkety InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://dl.google.com/linux/chrome/deb stable Release: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://dl.google.com/linux/chrome/deb stable Release' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://deb.opera.com/opera stable InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://deb.opera.com/opera stable InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu yakkety InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://de.archive.ubuntu.com/ubuntu yakkety InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu yakkety-security InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://de.archive.ubuntu.com/ubuntu yakkety-security InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu yakkety-updates InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://de.archive.ubuntu.com/ubuntu yakkety-updates InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu yakkety-proposed InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://de.archive.ubuntu.com/ubuntu yakkety-proposed InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://de.archive.ubuntu.com/ubuntu yakkety-backports InRelease: Could not execute 'apt-key' to verify signature (is gnupg installed?)
W: The repository 'http://de.archive.ubuntu.com/ubuntu yakkety-backports InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.