#Quelle:

https://www.heise.de/tipps-tricks/Arch-Linux-Installation-fuer-Einsteiger-4644484.html

loadkeys de
loadkeys de-latin1
cfdisk
mkfs.ext4 -L arch /dev/sdax
mkswap -L swap /dev/sdax
mount /dev/sdax /mnt und swapon -L /dev/sdax
pacstrap /mnt base base-devel linux linux-firmware nano dhcpcd firefox firefox-i18n-de thunderbird thunderbird-i18n-de
genfstab -p /mnt > /mnt/etc/fstab
arch-chroot /mnt
passwd
echo archlinux > /etc/hostname
echo LANG=de_DE.UTF-8 > /etc/locale.conf
nano /etc/locale.gen
echo KEYMAP=de-latin1 > /etc/vconsole.conf 
echo FONT=lat9w-16 >> /etc/vconsole.conf
ln -sf /usr/share/zoneinfo/Europe/Berlin /etc/localtime
mkinitcpio -p linux
pacman -S grub os-prober
grub-install /dev/sda
grub-mkconfig -o /boot/grub/grub.cfg
pacman -S xorg-server xorg-xinit
pacman -S xf86-video-vesa
nano /etc/X11/xorg.conf.d/20-keyboard.conf 
und schreib Folgendes hinein: 
Section "InputClass" 
Identifier "keyboard" 
MatchIsKeyboard "yes" 
Option "XkbLayout" "de" 
Option "XkbModel" "pc105" 
Option "XkbVariant" "nodeadkeys"
EndSection
pacman -S gnome gnome-extra mate mate-extra
pacman -S dhcpcd
systemctl enable gdm
systemctl enable dhcpcd