Image -> https://postimg.cc/WtZ6QD3V <-Image

Hi all,

I just installed Kali Linux and ran:

sudo apt update 

But I got this error:

GPG error: http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 827CB569F2518CC677FECA1AED65462ECB5E4C5 E: The repository is not signed. 

I also saw warnings about apt-key being deprecated, and attempts to use curl | gpg returned a 404.

What I Want: I don’t care about using the Tsinghua mirror — I just want a clean fix using the official Kali sources and keys.

What I’ve Tried:

• Replacing the mirror in /etc/apt/sources.list with the official Kali one.
• Using the modern gpg --dearmor method to import the official Kali archive key.

Thanks in advance!

Image -> https://postimg.cc/WtZ6QD3V <-Image

Hi all,

I just installed Kali Linux and ran:

sudo apt update 

But I got this error:

GPG error: http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 827CB569F2518CC677FECA1AED65462ECB5E4C5 E: The repository is not signed. 

I also saw warnings about apt-key being deprecated, and attempts to use curl | gpg returned a 404.

What I Want: I don’t care about using the Tsinghua mirror — I just want a clean fix using the official Kali sources and keys.

What I’ve Tried:

• Replacing the mirror in /etc/apt/sources.list with the official Kali one.
• Using the modern gpg --dearmor method to import the official Kali archive key.

My sources.list [I copied it from chatgpt, its not the default one]

# See https://www.kali.org/docs/general-use/kali-linux-sources-list-repositories/ deb [signed-by=/etc/apt/keyrings/tuna-kali.gpg] http://mirrors.tuna.tsinghua.edu.cn/kali kali-rolling main non-free contrib # Additional line for source packages # deb-src http://http.kali.org/kali kali-rolling main contrib non-free non-free-firmware 

Thanks in advance!