Erros sobre o repositório do Kali Linux quando eu executo o apt-get update [duplicate]

Question

root@BlackRishi98:~# apt-get update
Get:1 http://old.kali.org/kali sana InRelease [20.3 kB]                
Err:1 http://old.kali.org/kali sana InRelease                          
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ED444FF07D8D0BF6
Get:2 http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease [30.5 kB]
Err:2 http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ED444FF07D8D0BF6
Reading package lists... Done
W: GPG error: http://old.kali.org/kali sana InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ED444FF07D8D0BF6
E: The repository 'http://old.kali.org/kali sana InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://ftp.yzu.edu.tw/Linux/kali kali-rolling InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY ED444FF07D8D0BF6
E: The repository 'http://http.kali.org/kali kali-rolling InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Alguns dias atrás, eu tentei instalar o TheFatRat , um aplicativo do Kali Linux. Depois disso, comecei a receber esses erros. Eu não posso nem instalar novos pacotes.

Qualquer ajuda é apreciada.

    

Answer 1

Parece que você adicionou o Kali Linux Repository à sua lista de repositórios para instalar esse pacote, mas você não adicionou a chave pública do repositório ao seu chaveiro local. Assim, o Ubuntu não pode verificar a autenticidade do repositório.

Os seguintes comandos devem corrigir este problema:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys ED444FF07D8D0BF6
sudo apt update