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

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 InRele...

1 answer  ·  posted 2y ago by Anonymous‭  ·  last activity 2y ago by Anonymous‭

Question kali-linux
#2: Post edited by user avatar Anonymous‭ · 2021-09-11T08:42:59Z (over 2 years ago)
  • Why I can't update my system ?(Kali Linux)
  • Why I can't update my system? (Kali Linux)
#1: Initial revision by user avatar Anonymous‭ · 2021-09-11T08:33:38Z (over 2 years ago)
Why I can't update my system ?(Kali Linux)
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 

```bash
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?