Error: failed to synchronize all databases (invalid or corrupted database (PGP signature))

[jonathon]

@madhavdutta

I wasted my 3-4 hours to figure out the solution for this issue

You could have saved a lot of time by searching the forum.

Issues with “signature is marginal trust”, "signature is unknown trust", or “invalid or corrupted package”

If you're getting an error similar to "Can’t update: signature from *** is marginal trust" or "invalid or corrupted package" you probably just need to update your package signing keys: sudo pacman -Sy archlinux-keyring chaotic-keyring sudo pacman -Syu If you have added any other repositories, e.g. BlackArch, then add their keyring to the list. Also make sure your system clock is correct! Of course, it's also possible that the package file actually is corrupt. Remove it from /var/cache/pacman…

Although the above doesn’t explicitly mention “blackarch” you could probably guess that reinstalling the keyring package would help, and this is explicitly mentioned in other threads.

@madhavdutta

rm -rf /etc/pacman.d/gnupg

pacman-key --init

pacman-key --populate archlinux blackarch

You just broke the Garuda keyring. This is bad advice.