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Update issues

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 petitponey28 -
Hello,

I receive this message during my updates on LINUX MINT TRICIA 19 MATE: 
Updates blocked
The repository cdrom://Linux Mint 19.3 _Tricia_ - Release amd64 20191216 bionic Release does not have a
Release file. Updates from such a repository cannot be performed securely and are
therefore disabled by default. See the apt-secure(8) manual pages for repository creation and
user configuration details. Unable to fetch https://linux.teamviewer.com/deb/dists/
development/InRelease 403 Forbidden [IP: 2600:9000:2113:f200:1c:3aaa:b100:93a1 443] The repository
https://linux.teamviewer.com/deb development InRelease is not signed. Updates from such a
repository cannot be performed securely and are therefore disabled by default. See the
manual pages of apt-secure(8) for repository creation and user configuration details. GPG error:
https://repo.skype.com/deb/ stable InRelease: The following signatures are invalid:
EXPKEYSIG 1F3045A5DF7587C3 Skype Linux Client Repository <***@***> The repository
https://repo.skype.com/deb stable InRelease is not signed.


Configuration: Linux / Firefox 95.0

5 réponses

Réponse 1 / 5
mamiemando Posted messages 33540 Registration date   Status Modérateur Last intervention   7 927
 
Hello,

Apparently, there are a number of tools in Mint that make it easier to configure your repositories. Not knowing them, I'm giving you this link that seems reliable and provides you with the steps we would take on Debian (the distribution on which Ubuntu and Mint are based).

To build its list of updates, 
apt
relies on the content of the files 
/etc/apt/sources.list
and those contained in 
/etc/apt/sources.list.d/
. Can you report their content by copying and pasting the result of the following command to type in a terminal? 

head -n 100 /etc/apt/sources.list*


Correct the error regarding the CD ROM repositories in mint

You need to correct the file that references it, probably 
/etc/apt/sources.list
. To do this, modify it with any text editor (e.g. 
gedit
) in administrator mode, e.g. via the following command: 

sudo gedit /etc/apt/souces.list &


Then, just add a # in front of the repository you want to disable. Once that’s done, save, quit and restart your updates. You can use either the graphical interface or run in your terminal: 

sudo apt update sudo apt upgrade


Regarding 
teamviewer


The 
teamviewer
repository has not been correctly added to the APT configuration. This repository in question is probably referenced in 
/etc/apt/sources.list.d/
(e.g. 
/etc/apt/sources.list.d/teamviewer.list
)

There are two ways to solve the problem.
  • If you are using teamviewer, you need to let 
    apt
    know that you trust this repository by adding its key, as explained in this link :

wget -O - https://download.teamviewer.com/download/linux/signature/TeamViewer2017.asc | sudo apt-key add -
  • If you are not using teamviewer anymore and do not plan to install it, you can also simply disable this repository:
    • either by commenting out the appropriate line,
    • or by deleting the file that defines this repository if it’s the only one defined there.


Regarding 
skypeforlinux


It's the same principle as for 
teamviewer
, only the key address changes, and you can find it in this link : 
wget -O - https://repo.skype.com/data/SKYPE-GPG-KEY | sudo apt-key add -


Good luck
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