Installation and minimal setup of Arch Linux from live USB on an Intel laptop (BIOS mode) with 1GB swap partition

01-install.sh

#!/bin/sh
set -euo pipefail

echo "########## Setting the keyboard to ES..."
loadkeys es
echo "########## Setting clock..."
timedatectl set-ntp true
echo "########## Checking internet connection..."
ip link
ping -c 3 archlinux.org
lsblk
echo "########## Type the '/dev/sdX' partition you want to format (e.g. '/dev/sda'):"
read target
fdisk $target << EOF
o
n
p
1

-1000M
n
p
2


t
2
82
w
EOF
mkfs.ext4 ${target}1
mkswap ${target}2
swapon ${target}2
echo "########## Installing Arch Linux into $target..."
mount ${target}1 /mnt
echo "########## Installing minimum packages..."
pacstrap /mnt \
	acpi \
	base \
	dhcpcd \
	git \
	grub \
	htop \
	intel-ucode \
	iw \
	light \
	linux \
	linux-firmware \
	man-db \
	man-pages \
	net-tools \
	openssh \
	sudo \
	texinfo \
	vi \
	vim \
	wpa_supplicant \
	xkeyboard-config \
	zsh
echo "########## Generating the fstab file with the mounted partition where arch is installed..."
genfstab -U /mnt >> /mnt/etc/fstab
echo "########## Arch-chrooting into new installed system..."
arch-chroot /mnt

02-post-install-noX.sh

#!/bin/sh
set -euo pipefail

echo "########## Start and enable dhcpcd at startup..."
systemctl enable dhcpcd.service
systemctl start dhcpcd.service

echo "########## Setting time zone and clock..."
ln -sf /usr/share/zoneinfo/Europe/Madrid /etc/localtime
hwclock --systohc

echo "########## Setting locales..."
sed -i "/^#en_US.UTF-8 UTF-8/ s/# *//" /etc/locale.gen
locale-gen
echo "LANG=en_US.UTF-8" > /etc/locale.conf
echo "KEYMAP=es" > /etc/vconsole.conf

echo "########## Making wheel group a sudoer..."
echo "%wheel ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

echo "########## Setting hostname and hosts file..."
echo "##### Write your desired hostname:"
read hstname
echo $hstname > /etc/hostname
echo "127.0.0.1       $hstname" >> /etc/hosts
echo "::1             $hstname" >> /etc/hosts
echo "127.0.0.1       $hstname.localdomain       $hstname" >> /etc/hosts

echo "########## Setting root password..."
passwd

lsblk
echo "########## Choose the '/dev/sdX' to install GRUB (e.g. '/dev/sda'):"
read grubdir
grub-install --target=i386-pc $grubdir
grub-mkconfig -o /boot/grub/grub.cfg

echo "########## Adding desired user to the wheel group..."
echo "##### Choose your username:"
read username
useradd -m -G wheel -s /bin/bash $username
echo "##### Introduce password for user '$username':"
passwd $username

echo "FINISHED! Exit chroot with Ctrl+D or typing 'exit', and then 'reboot'"