$ pacman -Fs
warning: database file for 'core' does not exist
warning: database file for 'extra' does not exist
warning: database file for 'community' does not exist
warning: database file for 'multilib' does not exist
warning: database file for 'blackarch' does not exist
error: no targets specified (use -h for help)

$ sudo pacman -Syu
:: Synchronizing package databases...
error: failed retrieving file 'core.db' from manjaro.barata.pt : The requested URL returned error: 404
error: failed retrieving file 'core.db' from manjaro.telecoms.bg : The requested URL returned error: 404
error: failed retrieving file 'core.db' from mirror.ventraip.net.au : The requested URL returned error: 404
error: failed retrieving file 'core.db' from ftp.halifax.rwth-aachen.de : The requested URL returned error: 404
error: failed retrieving file 'core.db' from repo.sadjad.ac.ir : The requested URL returned error: 404
error: failed to update core (unexpected error)
error: failed retrieving file 'extra.db' from manjaro.barata.pt : The requested URL returned error: 404
error: failed retrieving file 'extra.db' from manjaro.telecoms.bg : The requested URL returned error: 404
error: failed retrieving file 'extra.db' from mirror.ventraip.net.au : The requested URL returned error: 404
error: failed retrieving file 'extra.db' from ftp.halifax.rwth-aachen.de : The requested URL returned error: 404
error: failed retrieving file 'extra.db' from repo.sadjad.ac.ir : The requested URL returned error: 404
error: failed to update extra (unexpected error)
error: failed retrieving file 'community.db' from manjaro.barata.pt : The requested URL returned error: 404
error: failed retrieving file 'community.db' from manjaro.telecoms.bg : The requested URL returned error: 404
error: failed retrieving file 'community.db' from mirror.ventraip.net.au : The requested URL returned error: 404
error: failed retrieving file 'community.db' from ftp.halifax.rwth-aachen.de : The requested URL returned error: 404
error: failed retrieving file 'community.db' from repo.sadjad.ac.ir : The requested URL returned error: 404
error: failed to update community (unexpected error)
error: failed retrieving file 'multilib.db' from manjaro.barata.pt : The requested URL returned error: 404
error: failed retrieving file 'multilib.db' from manjaro.telecoms.bg : The requested URL returned error: 404
error: failed retrieving file 'multilib.db' from mirror.ventraip.net.au : The requested URL returned error: 404
error: failed retrieving file 'multilib.db' from ftp.halifax.rwth-aachen.de : The requested URL returned error: 404
error: failed retrieving file 'multilib.db' from repo.sadjad.ac.ir : The requested URL returned error: 404
error: failed to update multilib (unexpected error)
 blackarch is up to date
:: Starting full system upgrade...
resolving dependencies...
looking for conflicting packages...

Packages (156) ark-17.12.1-1  attica-qt5-5.42.0-1  baloo-5.42.0-1
               baloo-widgets-17.12.1-1  beef-1:2993.521e5c3e-1
               bluez-qt-5.42.0-1  breeze-icons-5.42.0-1  cantata-2.2.0-3
               dolphin-17.12.1-1  dolphin-plugins-17.12.1-1  ffmpeg-1:3.4.1-3
               ffmpegthumbs-17.12.1-1  filelight-17.12.1-1
               frameworkintegration-5.42.0-1  freetype2-2.9-1  glib2-2.54.3-2
               gst-plugins-bad-1.12.4-2  gst-plugins-ugly-1.12.4-3
               gtk2-2.24.32-1  gvfs-1.34.1+11+gad63dfb7-1
               gvfs-afc-1.34.1+11+gad63dfb7-1
               gvfs-gphoto2-1.34.1+11+gad63dfb7-1
               gvfs-mtp-1.34.1+11+gad63dfb7-1  gvfs-nfs-1.34.1+11+gad63dfb7-1
               gvfs-smb-1.34.1+11+gad63dfb7-1  gwenview-17.12.1-1  inxi-2.3.56-1
               k3b-1:17.12.1-1  kaccounts-integration-17.12.1-1
               kaccounts-providers-17.12.1-1  kactivities-5.42.0-1
               kactivities-stats-5.42.0-1  kamera-17.12.1-1  karchive-5.42.0-1
               kate-17.12.1-1  kauth-5.42.0-1  kbookmarks-5.42.0-1
               kcalc-17.12.1-1  kcmutils-5.42.0-1  kcodecs-5.42.0-1
               kcompletion-5.42.0-1  kconfig-5.42.0-1  kconfigwidgets-5.42.0-1
               kcoreaddons-5.42.0-1  kcrash-5.42.0-1  kdbusaddons-5.42.0-1
               kdeclarative-5.42.0-1  kdeconnect-1.2.1-1  kded-5.42.0-1
               kdegraphics-thumbnailers-17.12.1-1  kdelibs4support-5.42.0-1
               kdenetwork-filesharing-17.12.1-1  kdesu-5.42.0-1
               kdialog-17.12.1-1  kdnssd-5.42.0-1  kdoctools-5.42.0-1
               keditbookmarks-17.12.1-1  kemoticons-5.42.0-1
               kfilemetadata-5.42.0-1  kfind-17.12.1-1  kget-17.12.1-1
               kglobalaccel-5.42.0-1  kguiaddons-5.42.0-1  khelpcenter-17.12.1-1
               kholidays-17.12.1-1  khtml-5.42.0-1  ki18n-5.42.0-1
               kiconthemes-5.42.0-1  kidletime-5.42.0-1  kimageformats-5.42.0-1
               kinit-5.42.0-1  kio-5.42.0-1  kio-extras-17.12.1-1
               kirigami2-5.42.0-1  kitemmodels-5.42.0-1  kitemviews-5.42.0-1
               kjobwidgets-5.42.0-1  kjs-5.42.0-1  kjsembed-5.42.0-1
               knewstuff-5.42.0-1  knotifications-5.42.0-1
               knotifyconfig-5.42.0-1  konsole-17.12.1-1  kpackage-5.42.0-1
               kparts-5.42.0-1  kpeople-5.42.0-1  kpty-5.42.0-1
               krunner-5.42.0-1  kservice-5.42.0-1  ksystemlog-17.12.1-1
               ktexteditor-5.42.0-1  ktextwidgets-5.42.0-1  kuiserver-5.11.5-2
               kunitconversion-5.42.0-1  kwallet-5.42.0-1
               kwalletmanager-17.12.1-1  kwayland-5.42.0-1
               kwidgetsaddons-5.42.1-1  kwindowsystem-5.42.0-1  kxmlgui-5.42.0-1
               lib32-mesa-17.3.2-2  lib32-mesa-vdpau-17.3.2-2
               lib32-systemd-236.81-1  libcdio-2.0.0-1
               libcdio-paranoia-10.2+0.94+2-2  libkcddb-17.12.1-1
               libkdcraw-17.12.1-1  libkexiv2-17.12.1-1  libkipi-17.12.1-1
               libksane-17.12.1-1  libnm-1.10.3dev+38+g78ef57197-1
               libnm-glib-1.10.3dev+38+g78ef57197-1  libpagemaker-0.0.4-1
               libqalculate-2.2.1-1  librsvg-2:2.42.0-1  libseccomp-2.3.2-2
               libsoup-2.60.3-1  libsrtp-1:2.1.0-1  libsystemd-236.81-1
               libva-mesa-driver-17.3.2-2  libwebp-0.6.1-1
               libx264-2:152.20171224-1  libx264-all-2:152.20171224-1
               linux414-4.14.14-1  linux414-nvidia-1:384.111-3
               manjaro-release-17.1.2-1  mesa-17.3.2-2  mesa-vdpau-17.3.2-2
               mhwd-0.6.1-1  mhwd-db-0.6.1-1  modemmanager-qt-5.42.0-1
               mpd-0.20.15-2  networkmanager-1.10.3dev+38+g78ef57197-1
               networkmanager-qt-5.42.0-1  okular-17.12.1-1
               oxygen-icons-1:5.42.0-1  perl-xml-libxml-2.0132-1
               plasma-framework-5.42.0-1  plasma-workspace-5.11.5-2
               polkit-0.113+34+g29ba7af-1.1  potrace-1.15-1
               print-manager-17.12.1-1  prison-5.42.0-1
               qqc2-desktop-style-5.42.0-1  signon-kwallet-extension-17.12.1-1
               solid-5.42.0-1  sonnet-5.42.0-1  spectacle-17.12.1-1
               syntax-highlighting-5.42.0-1  systemd-236.81-1
               systemd-sysvcompat-236.81-1  threadweaver-5.42.0-1  tslib-1.15-1
               vcdimager-2.0.1-1  vlc-nightly-3.0.0v20180114-1  yakuake-3.0.4-2

Total Download Size:   297.51 MiB
Total Installed Size:  960.03 MiB
Net Upgrade Size:        6.49 MiB

:: Proceed with installation? [Y/n]