I am trying to install mongodb using instructions given here but I am getting the following error while running sudo apt update:
W: GPG error: https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 656408E390CFB1F5
E: The repository 'https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/5.0 Release' 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.
I tried everything to troubleshoot this error from this troubleshooting guide but nothing worked for me here is the result of my sudo apt-key list command:
/etc/apt/trusted.gpg
--------------------
pub rsa4096 2016-04-12 [SC]
EB4C 1BFD 4F04 2F6D DDCC EC91 7721 F63B D38B 4796
uid [ unknown] Google Inc. (Linux Packages Signing Authority) <[email protected]>
sub rsa4096 2019-07-22 [S] [expires: 2022-07-21]
pub rsa4096 2017-05-08 [SCEA]
1EDD E2CD FC02 5D17 F6DA 9EC0 ADAE 6AD2 8A8F 901A
uid [ unknown] Sublime HQ Pty Ltd <[email protected]>
sub rsa4096 2017-05-08 [S]
pub rsa4096 2021-02-16 [SC] [expires: 2026-02-15]
F567 9A22 2C64 7C87 527C 2F8C B00A 0BD1 E2C6 3C11
uid [ unknown] MongoDB 5.0 Release Signing Key <[email protected]>
/etc/apt/trusted.gpg.d/apt.postgresql.org.gpg
---------------------------------------------
pub rsa4096 2011-10-13 [SC]
B97B 0AFC AA1A 47F0 44F2 44A0 7FCC 7D46 ACCC 4CF8
uid [ unknown] PostgreSQL Debian Repository
/etc/apt/trusted.gpg.d/microsoft.gpg
------------------------------------
pub rsa2048 2015-10-28 [SC]
BC52 8686 B50D 79E3 39D3 721C EB3E 94AD BE12 29CF
uid [ unknown] Microsoft (Release signing) <[email protected]>
/etc/apt/trusted.gpg.d/ubuntu-keyring-2012-archive.gpg
---------------------------------------------
pub rsa4096 2012-05-11 [SC]
790B C727 7767 219C 42C8 6F93 3B4F E6AC C0B2 1F32
uid [ unknown] Ubuntu Archive Automatic Signing Key (2012) <[email protected]>
/etc/apt/trusted.gpg.d/ubuntu-keyring-2012-cdimage.gpg
---------------------------------------------
pub rsa4096 2012-05-11 [SC]
8439 38DF 228D 22F7 B374 2BC0 D94A A3F0 EFE2 1092
uid [ unknown] Ubuntu CD Image Automatic Signing Key (2012) <[email protected]>
/etc/apt/trusted.gpg.d/ubuntu-keyring-2018-archive.gpg
---------------------------------------------
pub rsa4096 2018-09-17 [SC]
F6EC B376 2474 EDA9 D21B 7022 8719 20D1 991B C93C
uid [ unknown] Ubuntu Archive Automatic Signing Key (2018) <[email protected]>
I am on a fresh install of Xubuntu 20.04. Please tell me how to fix this problem.
Thanks
