Arch Linux

Pacman Errors

Error Signature

Example
sudo pacman -Syu linux-firmware                                                                                  ✘ 1   5s  21:58:38
error: cachyos: signature from "CachyOS <admin@cachyos.org>" is invalid
:: Synchronizing package databases...
 cachyos-v3 is up to date
 cachyos-core-v3 is up to date
 cachyos-extra-v3 is up to date
 cachyos                                                     499.6 KiB   385 KiB/s 00:01 [---------------------------------------------------] 100%
 core is up to date
 extra is up to date
 multilib is up to date
error: cachyos: signature from "CachyOS <admin@cachyos.org>" is invalid
error: failed to synchronize all databases (unexpected error)

FIX

# pacman-key --refresh-keys

Invalid or Corrupted package (PGP signature)

Just do these steps:

  1. pacman-key --init

  2. pacman-key --populate

Installation

You can actually use GPT for BIOS systems. Just follow typical partition layout for GPT then install grub for EFI one.

Get installed packages by user on Pacman

pacman -Qqtt