Resolved System updates have started failing.

[brainforge]

Server operating system version

Ubuntu 20.04.6 LTS

Plesk version and microupdate number

18.0.59 #2

On https://**********:8443/admin/pum/updates-list page I get the following error:
Error: Unable to get packages list: 2024-03-13 21:44:01 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']2024-03-13 21:44:02 ERROR: Apt cache fetch failed. Try to run the `apt-get update` command.2024-03-13 21:44:02 ERROR: 2024-03-13 21:44:02 ERROR: Exited with returncode 1.

Getting emails from automatic update tool:
Some problems occurred with the System Updates tool while installing new versions of system packages and third-party components on your server s1.brainforge.co.uk. Please wait for the next automatic update or run the update manually: https://**********:8443/admin/pum

Reason: 2024-03-13 06:27:19 INFO: pum is called with arguments: ['--list', '--repo-info', '--json']
2024-03-13 06:27:43 ERROR: Apt cache fetch failed. Try to run the `apt-get update` command.
2024-03-13 06:27:43 ERROR:
2024-03-13 06:27:43 ERROR: Exited with returncode 1.

From command line:
root@s1:~# apt-get update
Hit:1 Index of /KAV_8.9.2 focal InRelease
Hit:2 Index of /pool/PSA_18.0.59_14022 focal InRelease
Hit:3 Index of /pool/PHP_7.3.33_248 focal InRelease
Hit:4 Index of /PHP74_17 focal InRelease
Hit:5 Index of /grafana/deb stable InRelease
Hit:6 Index of /PHP80_17 focal InRelease
Hit:7 Index of /DRWEB_6.0.2.9 focal InRelease
Hit:9 Index of /PHP81_17 focal InRelease
Hit:10 Index of /PHP82_17 focal InRelease
Hit:11 Index of /pool/WPB_18.0.55_74 all InRelease
Hit:8 Index of /linux/distributions/ubuntu/ubuntu/ focal InRelease
Hit:13 Index of /linux/distributions/ubuntu/ubuntu/ focal-updates InRelease
Hit:14 Index of /linux/distributions/ubuntu/ubuntu/ focal-backports InRelease
Hit:15 Index of /linux/distributions/ubuntu/ubuntu/ focal-security InRelease
Hit:12 Tools/ubuntu/ - MariaDB focal InRelease
Get:16 https://dl.google.com/linux/chrome/deb stable InRelease [1,825 B]
Get:17 https://dlm.mariadb.com/repo/mariadb-server/10.11/repo/ubuntu focal InRelease [7,767 B]
Get:18 https://dlm.mariadb.com/repo/maxscale/latest/apt focal InRelease [9,344 B]
Err:16 https://dl.google.com/linux/chrome/deb stable InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E88979FB9B30ACF2
Fetched 17.1 kB in 1s (15.8 kB/s)
Reading package lists... Done
N: Ignoring file 'mariadb.list.old_1' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://dl.google.com/linux/chrome/deb stable InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E88979FB9B30ACF2
W: Failed to fetch https://dl.google.com/linux/chrome/deb/dists/stable/InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY E88979FB9B30ACF2
W: Some index files failed to download. They have been ignored, or old ones used instead.

 

[Martin Dias]

Seems you have custom repos that are broken
Googling "NO_PUBKEY E88979FB9B30ACF2" gives this as a possible solution:

apt update failure: NO_PUBKEY E88979FB9B30ACF2

How can I fix this error with update: Err:26 https://storage.googleapis.com/download.dartlang.org/linux/debian stable Release.gpg The following signatures couldn't be verified because the public ...

askubuntu.com

You will need to either install the key or remove that custom repo if not needed:

https://dl.google.com/linux/chrome/deb

 

[brainforge]

Thanks.

Reinstalling it resolved the problem (for now - but the key?).
# wget https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
# apt install ./google-chrome-stable_current_amd64.deb