From 7a4c72fb50c2864e37818880a7cf7b223290da5b Mon Sep 17 00:00:00 2001
From: Blake Romero <blake@blkrom.com>
Date: Tue, 16 Apr 2024 18:29:05 +0100
Subject: Add minimal install script

---
 min.sh | 173 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 173 insertions(+)
 create mode 100644 min.sh

diff --git a/min.sh b/min.sh
new file mode 100644
index 0000000..90cf60b
--- /dev/null
+++ b/min.sh
@@ -0,0 +1,173 @@
+#!/bin/bash
+
+# CONFIG
+# ======================================================
+# Drive
+drive="/dev/DRIVE"
+root="/dev/DRIVE1"
+boot="/dev/DRIVE2"
+
+# System
+timezone=Europe/London
+locale=en_GB
+user=blake
+user_groups=wheel,video,audio,input,seat
+hostname=ArtixPC
+
+# INSTALLATION
+# ======================================================
+
+# Ensure nothing mounted
+umount -R /mnt &> /dev/null
+
+# Init shell environment
+set -e
+
+# Checks
+[[ "${drive}" == "/dev/DRIVE" ]] \
+    && { echo "You forgot to set the DRIVE option!"; exit; }
+
+echo "Checking for internet connection..."
+ping -c 3 artixlinux.org 2>&1 /dev/null \
+    || { echo "No internet connection found"; exit; }
+
+# Enable ntpd to update time
+dinitctl start ntpd
+
+# Calculate SWAP size
+pacman --needed --noconfirm -Sy bc
+ram_kB=$(awk 'FNR==1 {print $2}' /proc/meminfo)
+ram_gb=$(bc <<< "${ram_kB} / 1000^2")
+[[ "${ram_gb}" -lt 1 ]] && { echo "Not enough ram for SWAP"; exit; }
+[[ -z "${swap_size}" || "${swap_size}" == auto ]] \
+    && swap_size="$(bc <<< "sqrt(${ram_gb}) * 4")G"
+
+# Request confirmation
+drive_bytes=$(blockdev --getsize64 "${drive}")
+drive_size="$(bc <<< "${drive_bytes} / 1000000000")G"
+echo "
+================ CONFIRM INSTALLATION ================
+DRIVE: ${drive} (size: ${drive_size})
+ROOT: ${root}
+BOOT: ${boot}
+------------------------------------------------------
+!!! CAUTION: ALL data from ${drive} will be erased !!!
+------------------------------------------------------
+Are you sure you want install?
+"
+unset input
+read -rp "Type YES (in uppercase letters) to begin installation: " input
+[[ "${input}" != "YES" ]] && exit
+
+# Create partitions
+wipefs -a "${drive}"
+layout=',+,L\n'
+[[ -d /sys/firmware/efi/efivars/ ]] && layout=",1G,U,*\n${layout}"
+printf "%s" "$layout" | sfdisk -qf -X gpt ${drive}
+
+# Make file-systems
+[[ -d /sys/firmware/efi/efivars/ ]] && mkfs.fat -n BOOT -F 32 "${boot}"
+mkfs.ext4 -qfL ROOT "$root"
+
+# Mount
+mount "${root}" /mnt && mkdir /mnt/boot
+[[ -d /sys/firmware/efi/efivars/ ]] && mount "${boot}" /mnt/boot
+
+# Make Swap
+fallocate -l "$swap_size" /mnt/swapfile && chmod 600 /mnt/swapfile
+mkswap /mnt/swapfile
+
+# Get CPU type & install microcode
+ucode=amd-ucode
+[[ $(grep "vendor_id" /proc/cpuinfo) == *Intel* ]] && ucode=intel-ucode
+
+# Sync packages
+pacman -Syy
+
+# Install base packages
+basestrap /mnt base base-devel dinit seatd-dinit pam_rundir
+
+# Install Linux & utilities
+basestrap /mnt \
+          linux-{firmware,headers} "${ucode}" \
+          grub efibootmgr os-prober \
+          git nano man-{db,man-pages} bc btop
+
+# Install services
+basestrap /mnt {iwd,openntpd,cronie,openssh,ufw}-dinit
+
+# Enable DHCP client for iwd
+printf "[General]\nEnableNetworkConfiguration=true" >> /mnt/etc/iwd/main.conf
+
+# Enable services
+services="ufw iwd openntpd cronie"
+for service in $services; do
+    artix-chroot /mnt bash -c "dinitctl enable $service"
+done
+
+# Generate file-system table
+fstabgen -U /mnt >> /mnt/etc/fstab
+
+# Set swappiness levels
+mkdir -p /mnt/etc/sysctl.d/
+echo vm.swappiness=10 > /mnt/etc/sysctl.d/99-swappiness.conf
+
+# Set locale
+printf "%s.UTF-8 UTF-8\n%s ISO-8859-1" "$locale" "$locale" >> /mnt/etc/locale.gen
+printf "LANG=%s.UTF-8\nexport LC_COLLATE=C" "$locale" > /mnt/etc/locale.conf
+artix-chroot /mnt bash -c "locale-gen"
+
+# Set timezone
+artix-chroot /mnt bash -c \
+             "ln -sf /usr/share/zoneinfo/${timezone} /etc/localtime && hwclock -w"
+
+# Set default text editor
+echo "export EDITOR=nano" >> /mnt/etc/profile
+
+# Set hostname
+echo "$hostname" > /mnt/etc/hostname
+
+# Set root password
+artix-chroot /mnt bash -c "echo root:artix | chpasswd"
+
+# Add new user
+artix-chroot /mnt bash -c "useradd -mG ${user_groups} ${user}"
+artix-chroot /mnt bash -c "echo \"${user}:artix\" | chpasswd"
+
+# Set user privileges
+echo "
+Cmnd_Alias STAT = /usr/bin/ufw status
+Cmnd_Alias PACMAN = /usr/bin/checkupdates
+Cmnd_Alias REBOOT = /bin/halt,/bin/reboot
+Defaults pwfeedback
+%wheel ALL=(ALL) ALL
+${user} ALL=(ALL) NOPASSWD:PACMAN,REBOOT,STAT
+" >> /mnt/etc/sudoers
+
+# Add PACMAN download style
+# Set MAKEFLAGS to match CPU threads for faster compiling
+cp /etc/makepkg.conf /etc/makepkg.conf.bak
+sed "s/#MAKEFLAGS=\".*\"/MAKEFLAGS=\"-j$(nproc)\"/" \
+    -i /mnt/etc/makepkg.conf
+
+# Configure GRUB
+# install grub
+grub_options="--target=i386-pc --recheck ${drive}"
+[[ -d /sys/firmware/efi/efivars/ ]] \
+    && grub_options="--target=x86_64-efi --efi-directory=/boot --bootloader-id=GRUB"
+
+artix-chroot /mnt bash -c \
+             "grub-install ${grub_options} && grub-mkconfig -o /boot/grub/grub.cfg"
+
+# FINISH
+umount -R /mnt
+swapoff -a
+set +x
+
+echo "
+======================================================================
+                        Installation Finished
+======================================================================
+"
+echo "You can now reboot and log into system"
+echo "NOTE: AFTER reboot be sure to enable the firewall with 'ufw enable'"
-- 
cgit