Arch 故障排除¶ Arch Linux 论坛. signature from "XXX" is unknown trust¶ 更新 keyring: pacman -S archlinux-keyring pacman-key -l Caleb # 密钥过时 # 更新密钥 pacman-key --refresh-keys pacman-key -l Caleb # 密钥有效 无音频设备¶ sudo pacman -S sof-firmware 评论