Cara Memperbaiki GPG error The following signatures couldn’t be verified because the public key is not available Pada Linux Ubuntu

Ketika anda menggunakan linux desktop atau server, ketika menambahkan PPA pada ubuntu dan melakukan update pada terminal, sering mengalami error.

Full code error :

yadi@yadi-PFN:~$ sudo apt-get update
Hit:1 https://download.sublimetext.com apt/stable/ InRelease 
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease 
Hit:3 http://linux.teamviewer.com/deb stable InRelease 
Hit:4 http://linux.teamviewer.com/deb preview InRelease 
Hit:5 http://dl.google.com/linux/chrome/deb stable Release 
Get:7 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB] 
Get:8 http://ppa.launchpad.net/klaus-vormweg/sylpheed/ubuntu xenial InRelease [17.5 kB]
Get:9 http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease [18.1 kB]
Hit:10 http://id.archive.ubuntu.com/ubuntu xenial InRelease 
Ign:9 http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease
Get:11 http://id.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB] 
Get:12 http://ppa.launchpad.net/klaus-vormweg/sylpheed/ubuntu xenial/main amd64 Packages [1,124 B]
Get:13 http://ppa.launchpad.net/klaus-vormweg/sylpheed/ubuntu xenial/main i386 Packages [1,124 B]
Get:14 http://id.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB] 
Get:15 http://ppa.launchpad.net/klaus-vormweg/sylpheed/ubuntu xenial/main Translation-en [1,048 B]
Fetched 345 kB in 13s (26.2 kB/s) 
Reading package lists... Done
W: GPG error: http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8A993C2521C5F0BA
W: The repository 'http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
yadi@yadi-PFN:~$

hal tersebut disebabkan karena key PPA tidak ada pada repo local di komputer anda, selanjutnya untuk mengatasi masalah tersebut, pertama perhatikan code errornya. pada bagian berikut :

W: GPG error: http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease: The following signatures couldn’t be verified because the public key is not available: NO_PUBKEY 8A993C2521C5F0BA

Dari error tersebut kita lihat dan ambil kode 8A993C2521C5F0BA, kemudian jalankan command :

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys KEYANDA

ganti KEYANDA dengan key diatas, sehingga full command menjadi

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8A993C2521C5F0BA

Hasil Command :

yadi@yadi-PFN:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8A993C2521C5F0BA
Executing: /tmp/tmp.00xH8PXppH/gpg.1.sh --keyserver
keyserver.ubuntu.com
--recv-keys
8A993C2521C5F0BA
gpg: requesting key 21C5F0BA from hkp server keyserver.ubuntu.com
gpg: key 21C5F0BA: public key "Launchpad PPA for Remmina PPA Team" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
yadi@yadi-PFN:~$

Kemudian lakukan : sudo apt-get update

yadi@yadi-PFN:~$ sudo apt-get update
Get:1 http://security.ubuntu.com/ubuntu xenial-security InRelease [102 kB] 
Hit:2 https://download.sublimetext.com apt/stable/ InRelease 
Ign:3 http://dl.google.com/linux/chrome/deb stable InRelease 
Hit:4 http://linux.teamviewer.com/deb stable InRelease 
Hit:5 http://linux.teamviewer.com/deb preview InRelease 
Hit:6 http://dl.google.com/linux/chrome/deb stable Release 
Hit:8 http://id.archive.ubuntu.com/ubuntu xenial InRelease 
Get:9 http://id.archive.ubuntu.com/ubuntu xenial-updates InRelease [102 kB] 
Hit:10 http://ppa.launchpad.net/klaus-vormweg/sylpheed/ubuntu xenial InRelease 
Get:11 http://ppa.launchpad.net/remmina-ppa-team/remmina-next/ubuntu xenial InRelease [18.1 kB]
Get:12 http://id.archive.ubuntu.com/ubuntu xenial-backports InRelease [102 kB] 
Fetched 324 kB in 8s (36.7 kB/s) 
Reading package lists... Done
yadi@yadi-PFN:~$ 

selesai

Leave a Reply

Your email address will not be published. Required fields are marked *