Comments on: How to Fix Broken Packages on Ubuntu 16.04 and Debian 9 https://www.rosehosting.com/blog/how-to-fix-broken-packages-on-ubuntu-16-04-and-debian-9/ Premium Linux Tutorials Since 2001 Fri, 03 Jun 2022 08:35:01 +0000 hourly 1 https://wordpress.org/?v=6.5.4 By: admin https://www.rosehosting.com/blog/how-to-fix-broken-packages-on-ubuntu-16-04-and-debian-9/#comment-48450 Wed, 30 Sep 2020 07:49:47 +0000 https://www.rosehosting.com/blog/?p=26678#comment-48450 In reply to Thomas L. Harman.

Looking at the error above, apt is telling us that the following key is missing: F42ED6FBAB17C654
The key should be located at /etc/apt/trusted.gpg.d/ but for some reason, it is not. You can try the following command to add the missing key:
sudo -E apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key F42ED6FBAB17C654

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By: Thomas L. Harman https://www.rosehosting.com/blog/how-to-fix-broken-packages-on-ubuntu-16-04-and-debian-9/#comment-48449 Tue, 29 Sep 2020 21:18:06 +0000 https://www.rosehosting.com/blog/?p=26678#comment-48449 $ sudo apt-get update –fix-missing
An error occurred during the signature verification. The repository is not updated and the previous index files will be used.

GPG error: http://packages.ros.org/ros/ubuntu xenial InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY F42ED6FBAB17C654
W:

Failed to fetch http://packages.ros.org/ros/ubuntu/dists/xenial/InRelease The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY F42ED6FBAB17C654
W:
Some index files failed to download. They have been ignored, or old ones used instead.

Any ideas how to fix “signatures” Thanks, Tom Harman

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By: priya Sharma https://www.rosehosting.com/blog/how-to-fix-broken-packages-on-ubuntu-16-04-and-debian-9/#comment-48257 Wed, 10 Jun 2020 09:36:13 +0000 https://www.rosehosting.com/blog/?p=26678#comment-48257 It worked like magic.. Thank you so much

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