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Q&A

Why I can't update my system? (Kali Linux)

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I had installed Kali Linux recently. I can't update or upgrade my system. Even, I can't install anything. Here's the error log

apt update
Get:1 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease [30.5 kB]
Err:1 http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease
  The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <devel@kali.org>
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: http://kali.cs.nctu.edu.tw/kali kali-rolling InRelease: The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <devel@kali.org>
W: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease  The following signatures were invalid: EXPKEYSIG ED444FF07D8D0BF6 Kali Linux Repository <devel@kali.org>
W: Some index files failed to download. They have been ignored, or old ones used instead.

Why I am getting the error? What's the problem right here?

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1 answer

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wget -q -O - https://archive.kali.org/archive-key.asc  | apt-key add

Using the above code you are adding a key. Then try to update your system.

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