While Trying to install xanmod kernal in pop os got an error can

Monkey D. Luffy

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sudo apt update && sudo apt install linux-xanmod
Get:1 http://deb.xanmod.org releases InRelease [2,094 B]
Err:1 http://deb.xanmod.org releases InRelease
The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 86F7D09EE734E623
Hit:2 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Hit:3 http://apt.pop-os.org/proprietary jammy InRelease
Get:4 http://us.archive.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Hit:5 http://apt.pop-os.org/release jammy InRelease
Get:6 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [109 kB]
Hit:7 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
Reading package lists... Done
W: GPG error: http://deb.xanmod.org releases InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 86F7D09EE734E623
E: The repository 'http://deb.xanmod.org releases 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.
 


Try this
Code:
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 86F7D09EE734E623
 


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