I am not Linux expert. I use Linux based OS cause I find it easy than other OS.
After updating last time, I can’t install any new package(Software) in my machine. It’s always shows some kind of signature error. I searched through forum and other Linux support site for solutions. None of them worked for me. Bellow are the error I am facing
Error: bashrc-manjaro: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: bash: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: icu: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: libxml2: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: shared-mime-info: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: libldap: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: krb5: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: libjpeg-turbo: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: audit: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: libcap: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: systemd-libs: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: libcups: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: freetype2: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: harfbuzz: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: pango: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: sqlite: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: glib-networking: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libsoup3: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libstemmer: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: tracker3: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: ca-certificates-mozilla: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libelf: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: libdrm: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: vulkan-icd-loader: signature from "Laurent Carlier <lordheavym@gmail.com>" is unknown trust
Error: device-mapper: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
Error: cryptsetup: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
Error: libnftnl: signature from "Sébastien Luttringer <seblu@seblu.net>" is unknown trust
Error: systemd: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: libsoup: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: python: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: alacarte: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: apr-util: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: apache: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: archlinux-appstream-data: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-urllib3: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-chardet: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-requests: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-numpy: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: boost-libs: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: ptex: signature from "Sven-Hendrik Haase <svenstaro@archlinux.org>" is unknown trust
Error: openvdb: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: sdl2: signature from "Sven-Hendrik Haase <svenstaro@archlinux.org>" is unknown trust
Error: openmpi: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: elfutils: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: blender: signature from "Sven-Hendrik Haase <svenstaro@archlinux.org>" is unknown trust
Error: btrfs-progs: signature from "Sébastien Luttringer <seblu@seblu.net>" is unknown trust
Error: ckbcomp: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: runc: signature from "Frederik Schwan <freswa@archlinux.org>" is unknown trust
Error: containerd: signature from "Morten Linderud <foxboron@archlinux.org>" is unknown trust
Error: qpdf: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: imagemagick: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: nss: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: cups-filters: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: cups: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: gnome-keyring: signature from "Philip Müller (Called Little) <philm@manjaro.org>" is unknown trust
Error: sudo: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: lvm2: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
Error: liburcu: signature from "Sergej Pupykin <sergej@p5n.pp.ru>" is unknown trust
Error: xfsprogs: signature from "Tobias Powalowski <tpowa@archlinux.org>" is unknown trust
Error: gnupg: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: double-conversion: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: qt5-base: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: geoip-database: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: geoip-database-extra: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: dkms: signature from "Sébastien Luttringer <seblu@seblu.net>" is unknown trust
Error: startdde: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: libmm-glib: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: papirus-icon-theme: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: deepin-dock: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: dhclient: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: docker: signature from "Morten Linderud <foxboron@archlinux.org>" is unknown trust
Error: docker-compose: signature from "Morten Linderud <foxboron@archlinux.org>" is unknown trust
Error: enchant: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: libsynctex: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: gnome-desktop: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: evince: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libical: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: libphonenumber: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: harfbuzz-icu: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: webkit2gtk: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: evolution-data-server: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: fd: signature from "Sven-Hendrik Haase <svenstaro@archlinux.org>" is unknown trust
Error: firefox: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: fluidsynth: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: git: signature from "Christian Hesse (Arch Linux Package Signing) <arch@eworm.de>" is unknown trust
Error: glslang: signature from "Sven-Hendrik Haase <svenstaro@archlinux.org>" is unknown trust
Error: ldb: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: python-markdown: signature from "Caleb Maclennan <alerque@archlinux.org>" is unknown trust
Error: smbclient: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: gnome-control-center: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: gnome-maps: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: mutter: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: unzip: signature from "Jonas Witschel <diabonas@archlinux.org>" is unknown trust
Error: gnome-shell-extension-dash-to-dock: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: libexif: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: tracker3-miners: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: gnome-shell-extension-desktop-icons-ng: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: gnome-shell-extension-nightthemeswitcher: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: libqalculate: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: pop-launcher: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: gnome-shell-extension-pop-shell: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: gnome-shell-extensions: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: vte-common: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: vte3: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: gnome-terminal: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: webkit2gtk-4.1: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: yelp-xsl: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: yelp: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: gnome-user-docs: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: graphviz: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: gupnp: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libx86emu: signature from "Alexander Rødseth <rodseth@gmail.com>" is unknown trust
Error: perl-try-tiny: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: hwinfo: signature from "Alexander Rødseth <rodseth@gmail.com>" is unknown trust
Error: inxi: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: lib32-brotli: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: lib32-libldap: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: lib32-krb5: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: lib32-libcap: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: lib32-systemd: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: lib32-libdrm: signature from "Laurent Carlier <lordheavym@gmail.com>" is unknown trust
Error: lib32-libelf: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: lib32-vulkan-icd-loader: signature from "Laurent Carlier <lordheavym@gmail.com>" is unknown trust
Error: lib32-icu: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: lib32-libxml2: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: lib32-fluidsynth: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: lib32-harfbuzz: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: lib32-freetype2: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: lib32-libtasn1: signature from "Laurent Carlier <lordheavym@gmail.com>" is unknown trust
Error: lib32-libjpeg-turbo: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: lib32-libcups: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: lib32-libsoup: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: mesa-demos: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: lib32-mesa-demos: signature from "Laurent Carlier <lordheavym@gmail.com>" is unknown trust
Error: lib32-nss: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: lib32-pango: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libcdr: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: libimagequant: signature from "Massimiliano Torromeo (Personal non-work identity) <massimiliano.torromeo@gmail.com>" is unknown trust
Error: libmbim: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libqrtr-glib: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: libvisio: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: lv2: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: sratom: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: lilv: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: linux414-headers: signature from "Manjaro Build Server <build@manjaro.org>" is unknown trust
Error: mkinitcpio-busybox: signature from "Giancarlo Razzolini (grazzolini) <grazzolini@archlinux.org>" is unknown trust
Error: mkinitcpio: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: linux510: signature from "Manjaro Build Server <build@manjaro.org>" is unknown trust
Error: linux510-headers: signature from "Manjaro Build Server <build@manjaro.org>" is unknown trust
Error: manjaro-release: signature from "Philip Müller (Called Little) <philm@manjaro.org>" is unknown trust
Error: manjaro-settings-manager: signature from "Philip Müller (Called Little) <philm@manjaro.org>" is unknown trust
Error: manjaro-settings-manager-notifier: signature from "Philip Müller (Called Little) <philm@manjaro.org>" is unknown trust
Error: mhwd-nvidia-470xx: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: mhwd-nvidia: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: mhwd-db: signature from "Philip Müller (Called Little) <philm@manjaro.org>" is unknown trust
Error: modemmanager: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: mtools: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: rpcbind: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: nfsidmap: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: nfs-utils: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: nginx: signature from "Giancarlo Razzolini (grazzolini) <grazzolini@archlinux.org>" is unknown trust
Error: nodejs: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: ostree: signature from "David Runge <dvzrv@archlinux.org>" is unknown trust
Error: pacman-mirrors: signature from "Frede Hundewadt <fh@manjaro.org>" is unknown trust
Error: pangomm: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: pcsclite: signature from "Frederik Schwan <freswa@archlinux.org>" is unknown trust
Error: php: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php-apache: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php-fpm: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php-gd: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php-sqlite: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php7: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: php7-apache: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: postfix: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: postgresql-libs: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: python-cachecontrol: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: python-ply: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-pycparser: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-cffi: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-colorama: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-distlib: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-distro: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-webencodings: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-html5lib: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-tomli: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: python-pep517: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-progress: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-retrying: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-resolvelib: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: python-pyopenssl: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: python-pip: signature from "Jelle van der Waa <jelle@archlinux.org>" is unknown trust
Error: qgnomeplatform: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: qt5-location: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: qt5-webkit: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: raptor: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: samba: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: seahorse: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: snapd: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: suitesparse: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: systemd-sysvcompat: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: tepl: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: tlp: signature from "Mark Wagie <mark@manjaro.org>" is unknown trust
Error: tracker: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: tracker-miners: signature from "Felix Yan <felixonmars@archlinux.org>" is unknown trust
Error: ttf-fira-code: signature from "farseerfc <farseerfc@archlinuxcn.org>" is unknown trust
Error: wayland-protocols: signature from "Sébastien Luttringer <seblu@seblu.net>" is unknown trust
Error: xf86-video-ati: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: xorg-xauth: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: xterm: signature from "Andreas Radke <andyrtr@archlinux.org>" is unknown trust
Error: xxhash: signature from "Maxime Gauduin <alucryd@archlinux.org>" is unknown trust
Error: m4: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: pkgconf: signature from "Jan Alexander Steffens (heftig) <heftig@archlinux.org>" is unknown trust
Error: flex: signature from "Evangelos Foutras <evangelos@foutrelis.com>" is unknown trust
Error: autoconf: signature from "Allan McRae (Developer) <allan@archlinux.org>" is unknown trust
Error: automake: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Error: bison: signature from "Antonio Rojas <arojas@archlinux.org>" is unknown trust
Removing invalid files and retrying...