Shell script that performs the installation of Arch Linux the way I like it.

arch_bootstrap.bash

#!/bin/bash

bootstrapper_dialog() {
    DIALOG_RESULT=$(dialog --clear --stdout --backtitle "Arch bootstrapper" --no-shadow "$@" 2>/dev/null)
}

#################
#### Welcome ####
#################
bootstrapper_dialog --title "Welcome" --msgbox "Welcome to Kenny's Arch Linux bootstrapper.\n" 6 60

##############################
#### UEFI / BIOS detection ###
##############################
efivar -l >/dev/null 2>&1

if [[ $? -eq 0 ]]; then
    UEFI_BIOS_text="UEFI detected."
    UEFI_radio="on"
    BIOS_radio="off"
else
    UEFI_BIOS_text="BIOS detected."
    UEFI_radio="off"
    BIOS_radio="on"
fi

bootstrapper_dialog --title "UEFI or BIOS" --radiolist "${UEFI_BIOS_text}\nPress <Enter> to accept." 10 30 2 1 UEFI "$UEFI_radio" 2 BIOS "$BIOS_radio"
[[ $DIALOG_RESULT -eq 1 ]] && UEFI=1 || UEFI=0

#################
#### Prompts ####
#################
bootstrapper_dialog --title "Hostname" --inputbox "Please enter a name for this host.\n" 8 60
hostname="$DIALOG_RESULT"

##########################
#### Password prompts ####
##########################
bootstrapper_dialog --title "Disk encryption" --passwordbox "Please enter a strong passphrase for the full disk encryption.\n" 8 60
encryption_passphrase="$DIALOG_RESULT"

bootstrapper_dialog --title "Root password" --passwordbox "Please enter a strong password for the root user.\n" 8 60
root_password="$DIALOG_RESULT"

#################
#### Warning ####
#################
bootstrapper_dialog --title "WARNING" --msgbox "This script will NUKE /dev/sda from orbit.\nPress <Enter> to continue or <Esc> to cancel.\n" 6 60
[[ $? -ne 0 ]] && (bootstrapper_dialog --title "Cancelled" --msgbox "Script was cancelled at your request." 5 40; exit 0)

##########################
#### reset the screen ####
##########################
reset

#########################################
#### Nuke and set up disk partitions ####
#########################################
echo "Zapping disk"
sgdisk --zap-all /dev/sda

echo "Creating /dev/sda1"
if [[ $UEFI -eq 1 ]]; then
    printf "n\n1\n\n+1G\nef00\nw\ny\n" | gdisk /dev/sda
    yes | mkfs.fat -F32 /dev/sda1
else
    printf "n\np\n1\n\n+200M\nw\n" | fdisk /dev/sda
    yes | mkfs.xfs /dev/sda1
fi

echo "Creating /dev/sda2"
if [[ $UEFI -eq 1 ]]; then
    printf "n\n2\n\n\n8e00\nw\ny\n"| gdisk /dev/sda
else
    printf "n\np\n2\n\n\nt\n2\n8e\nw\n" | fdisk /dev/sda
fi

echo "Setting up encryption"
printf "%s" "$encryption_passphrase" | cryptsetup luksFormat /dev/sda2 -
printf "%s" "$encryption_passphrase" | cryptsetup open --type luks /dev/sda2 lvm -

echo "Setting up LVM"
pvcreate /dev/mapper/lvm
vgcreate vg00 /dev/mapper/lvm
lvcreate -L 20G vg00 -n lvroot
lvcreate -l +100%FREE vg00 -n lvhome

echo "Creating XFS file systems on top of logical volumes"
yes | mkfs.xfs /dev/mapper/vg00-lvroot
yes | mkfs.xfs /dev/mapper/vg00-lvhome

######################
#### Install Arch ####
######################

mount /dev/vg00/lvroot /mnt
mkdir /mnt/{boot,home}
mount /dev/sda1 /mnt/boot
mount /dev/vg00/lvhome /mnt/home

yes '' | pacstrap -i /mnt base base-devel

genfstab -U -p /mnt >> /mnt/etc/fstab

###############################
#### Configure base system ####
###############################
arch-chroot /mnt /bin/bash <<EOF
echo "Setting and generating locale"
echo "en_US.UTF-8 UTF-8" > /etc/locale.gen
locale-gen
export LANG=en_US.UTF-8
echo "LANG=en_US.UTF-8" >> /etc/locale.conf
echo "Setting time zone"
ln -s /usr/share/zoneinfo/Europe/Brussels /etc/localtime
echo "Setting hostname"
echo $hostname > /etc/hostname
sed -i "/localhost/s/$/ $hostname/" /etc/hosts
echo "Installing wifi packages"
pacman --noconfirm -S iw wpa_supplicant dialog wpa_actiond
echo "Generating initramfs"
sed -i 's/^HOOKS.*/HOOKS="base udev autodetect modconf block encrypt lvm2 filesystems keyboard fsck"/' /etc/mkinitcpio.conf
mkinitcpio -p linux
echo "Setting root password"
echo "root:${root_password}" | chpasswd
EOF

#############################
#### Install boot loader ####
#############################
if [[ $UEFI -eq 1 ]]; then
arch-chroot /mnt /bin/bash <<EOF
echo "Installing Gummiboot boot loader"
pacman --noconfirm -S gummiboot
gummiboot install
cat << GRUB > /boot/loader/entries/arch.conf
title          Arch Linux
linux          /vmlinuz-linux
initrd         /initramfs-linux.img
options        cryptdevice=/dev/sda2:vg00 root=/dev/mapper/vg00-lvroot rw
GRUB
EOF
else
arch-chroot /mnt /bin/bash <<EOF
    echo "Installing Grub boot loader"
    pacman --noconfirm -S grub
    grub-install --target=i386-pc --recheck /dev/sda
    sed -i 's|^GRUB_CMDLINE_LINUX_DEFAULT.*|GRUB_CMDLINE_LINUX_DEFAULT="quiet cryptdevice=/dev/partition:MyStorage root=/dev/mapper/MyStorage-rootvol"|' /etc/default/grub
    grub-mkconfig -o /boot/grub/grub.cfg
EOF
fi

#################
#### The end ####
#################

I think I like your script, I have been working on my own, You saved me a tonne of work.

I think I like your script, I have been working on my own, You saved me a tonne of work.

Hi Rajat, I'm glad you found it to be helpful!

How would you be Interested in taking this and converting this into a Project. I have experience with a distro myself, I was a developer with Archlabs Linux when they started early on. You will find my mention on their about page.

I believe their installer code is very rough and complex we could together build something better than anything out there. I left the project on account of not being able to spend enough time on contribution to the project.

I am looking a a fresh start where a user can download ARCH ISO and git clone our script and do the install without having to call our script a distro. I am looking to build a mechanism for people to install Arch with the click of a button.. Let me know if you are interested.

I think it's an interesting idea, but I'm not currently using Arch Linux anymore. I've switched to Debian testing.

Your script is great though. I will credit you for your work on my version.RegardsRajat On 21-Aug-2019 1:58 PM, Kenny Rasschaert <[email protected]> wrote:I think it's an interesting idea, but I'm not currently using Arch Linux anymore, I've switched to Debian testing. —You are receiving this because you commented.Reply to this email directly, view it on GitHub, or mute the thread.