I am receiving this error on my freshly installed Arch Linux.
error: firefox: signature from "Ionut Biru........" is invalid.
error: failed to commit transaction (invalid or corrupted package (PGP signature))
I have installed a bunch of other packages, but when I tried to install Firefox, no good.
This is one of the five master signers in the Arch system.
I have tried deleting my pacman cache and refreshing.
I have removed my keyring and re-installed it with
pacman-key --init
pacman-key populate archlinux
I have refreshed the list, confirmed the 5 master signing keys and switched the key server to the one at MIT that is recommended in Troubleshooting guide. I tried a bunch of different searches at the Arch Forums but found nothing closely related.
Any ideas what might be going on or where I should look next?