SOLVED Intel Graphics Installer Error Begin Install ( Terbaru 2022 )

SOLVED Intel Graphics Installer Error Begin Install. I have same problem with this link (http://askubuntu.com/questions/823085/intel-graphic-ppa-error-after-apt-get-update). This message show after install intel graphic installer.

Error shows after updateing package cache

This message error :

W: GPG error: https://download.01.org/gfx/ubuntu/16.04/main xenial InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 56A3DEF863961D39
W: The repository 'https://download.01.org/gfx/ubuntu/16.04/main 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.

And i found this solution in this link (http://askubuntu.com/questions/823085/intel-graphic-ppa-error-after-apt-get-update). You can following command this, and run one by one. You can try and added sudo in front if not success. To copy you can double click in command.

1. wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-GROUP-KEY-ilg -O - | sudo apt-key add -

2. wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg -O - | sudo apt-key add -

3. wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-2 -O - | sudo apt-key add -

4. wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-3 -O - | sudo apt-key add -

5. wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-KEY-ilg-4 -O - | sudo apt-key add -

 SOLVED Intel Graphics Installer Error Begin Install. After this you can open again intel graphic tool and try install again

Or you can try in this link https://01.org/linuxgraphics/downloads/intel-graphics-update-tool-linux-os-v2.0.3 I

I Quotes this message :

Signatures - Ubuntu*

• NOTE: Whether running for the first time or upgrading from an earlier release, be sure to run the following.

In order to "trust" the Intel® Graphics Update Tool for Linux* OS, you will need to add keys to Ubuntu's* software package manager ("apt"). Open a terminal, and execute these lines:

wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-GROUP-KEY-ilg

sudo apt-key add RPM-GPG-GROUP-KEY-ilg

In addition, also run the update and upgrade from Ubuntu*

sudo apt-get update
sudo apt-get upgrade

Signatures - Fedora*

• NOTE: Whether running for the first time or upgrading from an earlier release, be sure to run the following.

In order to "trust" the Intel® Graphics Update Tool for Linux* OS, you will need to add keys to Fedora's* software package manager ("rpm" and "yum"). Open a terminal, and execute these lines:

   wget --no-check-certificate https://download.01.org/gfx/RPM-GPG-GROUP-KEY-ilg
   sudo rpm --import RPM-GPG-GROUP-KEY-ilg

In addition, also run the update and upgrade from Fedora*

   sudo dnf update

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