Fix for arch-linux-keyring unknown trust

On a fresh install of Manjaro Sway Arm edition, I was unable to perform an update and was receiving the below error:
“error: archlinux-keyring: signature from Arch Linux ARM Build System is unknown trust”

I was able to fix by:

  1. Opening ‘Add/Remove Applications’.
  2. Clicking three dots and selecting ‘Preferences’.
  3. Navigate for the ‘Third Party’ tab.
  4. Use the radio button to ‘Enable AUR support’.
  5. Then go back to main window, click Refresh and Apply.

The enablement of the AUR should not be a solution for this error.

What probably happened when doing the action is that pamac refreshed the key’s and thus the error was no longer blocking the update process.