I can't update my machine anymore.
To me it seems I have the problem that my machine doesn't accept the package signatures. However I have no idea how to solve it, any help would be appreciated.
Software Updater complains with:
Failed to download repository information - Check your Internet connection. -> While I have internet.
sudo apt-get update:
...
Ign:15 http://ppa.launchpad.net/chris-lea/node.js/ubuntu xenial/main
amd6 DEP-11 Metadata
Ign:16 http://ppa.launchpad.net/chris-lea/node.js/ubuntu xenial/main DEP-11 64x64 Icons
Fetched 45.2 kB in 19s (2,289 B/s)
Reading package lists... Done
W: GPG error: http://packages.microsoft.com/repos/vscode stable
InRelease: The following signatures couldn't be verified because the
public key is not available: NO_PUBKEY EB3E94ADBE1229CF
W: The repository 'http://packages.microsoft.com/repos/vscode 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://ppa.launchpad.net/font-manager/staging/ubuntu
xenial InRelease: The following signatures couldn't be verified
because the public key is not available: NO_PUBKEY F738B17DF9E284B7
W: The repository 'http://ppa.launchpad.net/font-
manager/staging/ubuntu xenial 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: An error occurred during the signature verification. The repository
is not updated and the previous index files will be used. GPG error:
http://ppa.launchpad.net/budgie-remix/ppa/ubuntu xenial InRelease: The
following signatures couldn't be verified because the public key is
not available: NO_PUBKEY 3B139A1EF422D205
W: The repository 'http://ppa.launchpad.net/chris-lea/node.js/ubuntu
xenial Release' does not have a Release file.
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: Failed to fetch http://ppa.launchpad.net/budgie-
remix/ppa/ubuntu/dists/xenial/InRelease The following signatures
couldn't be verified because the public key is not available:
NO_PUBKEY 3B139A1EF422D205
E: Failed to fetch http://ppa.launchpad.net/chris-
lea/node.js/ubuntu/dists/xenial/main/binary-amd64/Packages 404 Not
Found
W: Some index files failed to download. They have been ignored, or old
ones used instead.
As suggested by comment I followed the URL:
- http://packages.microsoft.com/repos/vscode - not signed (I downloaded it together with anaconda) -> url doesn't exist
- http://ppa.launchpad.net/font-manager/staging/ubuntu xenial There seems to be a
0.7.3~201712020419~ubuntu16.04.1version - http://ppa.launchpad.net/budgie-remix/ppa/ubuntu - there is ./dists/xenial/Release (I'm not sure if this is what you are looking for)
- http://ppa.launchpad.net/chris-lea/node.js/ubuntu - I couldn't find the xenial/Release file
I'm sorry but I'm still a bit unsure what I'm exactly looking for as my experience with the package manager is quite limited. As it is right now I can't update any package (for example the ones in canonical).
