Arch Linux installation guide

# clean old partition tables / filesystem information
wipefs --all /dev/sda
# create a fresh GPT partition table
parted /dev/sda --script mklabel gpt
# parted won't format partitions, you've to specify any filesystem
# but the attribute will be ignore
# bios boot partition
parted /dev/sda --script mkpart primary ext3 2048s 4095s
# /boot
parted /dev/sda --script mkpart primary ext3 4096s 1953791s
# rest for LVM
parted /dev/sda --script mkpart primary ext3 1953792s 100%
parted /dev/sda --script set 1 bios_grub on
# setup LVM
pvcreate /dev/sda3
vgcreate vg0 /dev/sda3
lvcreate --size 50G --name root vg0
mkfs.ext4 -v /dev/sda2
mkfs.ext4 -v /dev/mapper/vg0-root
mount /dev/mapper/vg0-root /mnt
mkdir /mnt/boot
mount /dev/sda2 /mnt/boot
# use own mirror with aur repository
echo 'Server = http://mirror.virtapi.org/archlinux/$repo/os/$arch/' > /etc/pacman.d/mirrorlist
# update local repository cache
pacman -Syy
# install base OS
pacstrap /mnt base base-devel vim htop grub openssh linux-hardened linux-hardened-docs linux-hardened-headers linux linux-docs linux-firmware linux-headers linux-lts linux-lts-headers linux-lts-docs lvm2 inetutils man
# generate fstab
genfstab -U /mnt >> /mnt/etc/fstab

arch-chroot /mnt
# setup you most favourite hostname
echo myawesomebox.mylocaltld > /etc/hostname
echo LANG=en_US.UTF-8 > /etc/locale.conf
echo "en_US.UTF-8 UTF-8" > /etc/locale.gen
locale-gen
echo LANG=en_US.UTF-8 > /etc/locale.conf
echo KEYMAP=de > /etc/vconsole.conf
# setup a sane list of hooks
sed -i 's/^HOOKS=.*/HOOKS=(base systemd keyboard sd-vconsole autodetect modconf block sd-lvm2 filesystems fsck)/' /etc/mkinitcpio.conf
# you can omit the virtio* modules if this isn't a VM
sed -i 's/^MODULES=.*/MODULES=(ext4 vfat usbhid hid igb virtio_balloon virtio_console virtio_scsi virtio_net virtio_pci virtio_ring virtio ne2k_pci)/' /etc/mkinitcpio.conf
# regenerate initrds with all hooks + modules
mkinitcpio --allpresets
# start basic systemd services after first boot
systemctl enable sshd systemd-networkd systemd-resolved systemd-networkd-wait-online
# install grub + create grub config
grub-install /dev/sda
sed -i 's/quiet/quiet nomodeset/' /etc/default/grub
sed -i 's/.*GRUB_DISABLE_LINUX_UUID.*/GRUB_DISABLE_LINUX_UUID=false/' /etc/default/grub
echo 'GRUB_DISABLE_SUBMENU=y' >> /etc/default/grub
sed -i 's/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT=10/' /etc/default/grub 
grub-mkconfig -o /boot/grub/grub.cfg
# setup ssh login
sed -i 's/#PermitRoot.*/PermitRootLogin prohibit-password/' /etc/ssh/sshd_config
mkdir /root/.ssh
curl https://github.com/bastelfreak.keys --silent > /root/.ssh/authorized_keys
sed -i 's/^/no-port-forwarding,no-X11-forwarding,no-agent-forwarding /g' /root/.ssh/authorized_keys
# change root password
echo 'root:YOURNEWPASSWORD' | chpasswd
# create a networkd config with DHCP
dev=$(ip route show default | awk '/default/ {print $5}')
mac=$(cat "/sys/class/net/${dev}/address")
{
echo '[Match]'
echo "MACAddress=${mac}"
echo ''
echo '[Network]'
echo 'DHCP=yes'
} > /etc/systemd/network/wired.network
# Add AUR repository
{
echo ''
echo '[aur]'
echo 'SigLevel = Optional TrustAll'
echo 'Include = /etc/pacman.d/mirrorlist'
} >>  /etc/pacman.conf
# Done \o/
exit
umount /mnt/boot
umount /mnt
sync
reboot