Error messages: Check updates in Web GUI

execute the command gicen in the thread above from cli

Zitat von ChrisBuzz

Code

sudo su - wget -O - https://github.com/OpenMediaVault-Plugin-Developers/packages/raw/master/install | bash

After using the command above I still get the error message after activating FTP

Did you ran that command in a single line?

No idea how to fix the FTP issue but the command is:

sudo su - # <--- This is one command

wget -O - https://github.com/OpenMediaVault-Plugin-Developers/packages/raw/master/install | bash # <--- This is another

On a single line, you get this:

pi@tacho:~ $ sudo su - wget -O - https://github.com/OpenMediaVault-Plugin-Developers/packages/raw/master/install | bash
su: invalid option -- 'O'
Try 'su --help' for more information.

Zitat von ChrisBuzz

After a reboot I still receive some error messages which thought that I solved them already:

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CRON-APT RUN [/etc/cron-apt/config]: Wed Dec 8 07:37:24 CET 2021

CRON-APT SLEEP: 3492, Wed Dec 8 08:35:36 CET 2021

CRON-APT ACTION: 0-update

CRON-APT LINE: /usr/bin/apt-get update -o quiet=2

W: GPG error: http://ppa.launchpad.net/kyle1117/ppa/ubuntu cosmic InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 3028C3C96AD57103

E: The repository 'http://ppa.launchpad.net/kyle1117/ppa/ubuntu cosmic InRelease' is not signed.

Any ideas?

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You already had some pointers from Zoki

You need to delete the repo file that is giving problems.

That repo is for ubuntu so, it was something that you installed on the HOST that added it to the sources

The repo is valid but the signature is missing.

Either run:

nano /etc/sources.list.d/kyle1117-ubuntu-ppa-cosmic.list and put a # in the begining of any line you have there.

Or follow this to add the signature to that repo:

Fix Missing GPG Key Apt Repository Errors (NO_PUBKEY) - Linux Uprising Blog

Zitat

Solution 1: Quick NO_PUBKEY fix for a single repository / key.

If you're only missing one public GPG repository key, you can run this command on your Ubuntu / Linux Mint / Pop!_OS / Debian system to fix it:

Code

sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys THE_MISSING_KEY_HERE

You'll have to replace THE_MISSING_KEY_HERE with the missing GPG key. The key is shown in the apt update / apt-get update log, after NO_PUBKEY. For example, in the error message I posted above, the missing GPG key that must be used in this command is EA8CACC073C3DB2A.

In your case, it would be:

sudo apt-key adv --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys 3028C3C96AD57103

Don't know if it will work since the hkp service was deprecated,

gpg signature - `gpg: keyserver send failed: No keyserver available` when sending to hkp://pool.sks-keyservers.net - Stack Overflow