installer

#!/usr/bin/env bash

echo
echo "############################################"
echo "########### Arch Linux Installer ###########"
echo "############################################"
echo "Check out the Arch Linux Installation Guide"
echo "############################################"
echo

# Set the keyboard layout
loadkeys ru

# Check EFI boot mode
table=`ls /sys/firmware/efi/efivars 2>&1 | grep -o "cannot access"`
if [[ "$table" == "cannot access" ]]; then
    table="BIOS"
else
    table="UEFI"
fi

# Check network
ip link
ping -c3 archlinux.org

# Update the system clock
timedatectl set-ntp true
sleep 3; echo
timedatectl status

echo
echo "####################"
echo "Click any key; ctrl-c is abort"
echo "####################"
read -n1 -p">"; echo

# Create disk table; format and mount it

lsblk; echo

echo
echo "####################"
echo "Boot mode is $table"
echo "####################"
while [[ $am != "1" ]] && [[ $am != "2" ]]; do
    echo "Please, choose:"
    echo "1) auto mount mode - only for /dev/vda"
    echo "2) manual mount mode"
    echo "####################"
    read -n1 -p">" am
done
echo

if [[ $table == "UEFI" ]]; then
    if [[ $am == "1" ]]; then
        echo
        echo "####################"
        echo "Important:"
        echo "Select label type: gpt"
        echo "Create the following new partions:"
        echo "/dev/vda1 - for efi"
        echo "/dev/vda2 - for swap"
        echo "/dev/vda3 - for root"
        echo "####################"
        echo "Click any key; ctrl-c is abort"
        echo "####################"
        read -n1 -p">"; echo

        cfdisk
        lsblk
        echo
        echo "####################"
        echo "Click any key; ctrl-c is abort"
        echo "####################"
        read -n1 -p">"; echo

        mkfs.fat -F32 /dev/vda1
        mkswap /dev/vda2
        mkfs.ext4 /dev/vda3

        mount /dev/vda3 /mnt
        swapon /dev/vda2
        mkdir -p /mnt/boot/efi
        mount /dev/vda1 /mnt/boot/efi
    else
        echo
        echo "####################"
        echo "Important:"
        echo "Select label type: gpt"
        echo "/mnt          - for root"
        echo "/mnt/boot/efi - for efi"
        echo "####################"
        echo "1 - cfdisk, fdisk, gdisk                         - partitions manager"
        echo "2 - lsblk  or lsblk -fs                          - show partitions"
        echo "3 - mkfs.ext4 /dev/sdX, mkfs.fat -F32 /dev/sdY   - for format"
        echo "4 - mount /dev/sdX /mnt                          - for mount /"
        echo "5 - mkdir -p /mnt/boot/efi                       - create dir for EFI"
        echo "6 - mount /dev/sdY /mnt/boot/efi                 - for mount /boot/efi"
        echo "7 - mkswap /dev/sdZ; swapon /dev/sdZ             - for swap"
        echo "####################"
        echo "after in shell do: # exit"
        echo "####################"
        bash
    fi
else
    if [[ $am == "1" ]]; then
        echo
        echo "####################"
        echo "Important:"
        echo "Select label type: dos"
        echo "Create the following new partions:"
        echo "/dev/vda1 - for swap"
        echo "/dev/vda2 - for root"
        echo "####################"
        echo "Click any key; ctrl-c is abort"
        echo "####################"
        read -n1 -p">"; echo

        cfdisk
        lsblk
        echo
        echo "####################"
        echo "Click any key; ctrl-c is abort"
        echo "####################"
        read -n1 -p">"; echo

        mkswap /dev/vda1
        mkfs.ext4 /dev/vda2

        mount /dev/vda2 /mnt
        swapon /dev/vda1
    else
        echo
        echo "####################"
        echo "Important:"
        echo "Select label type: dos"
        echo "/mnt          - for root"
        echo "####################"
        echo "1 - cfdisk, fdisk                                - partitions manager"
        echo "2 - lsblk or lsblk -fs                           - show partitions"
        echo "3 - mkfs.ext4 /dev/sdX                           - for format"
        echo "4 - mount /dev/sdX /mnt                          - for mount"
        echo "5 - mkswap /dev/sdY; swapon /dev/sdY             - for swap"
        echo "####################"
        echo "after in shell do: # exit"
        echo "####################"
        bash
    fi
fi

echo
echo "####################"
echo "Click any key; ctrl-c is abort"
echo "####################"
read -n1 -p">"; echo


# Install base packages

# grub
while [[ $grub != "1" ]] && [[ $grub != "2" ]]; do
    echo "####################"
    echo "Install grub:"
    echo "1) yes"
    echo "2) no"
    echo "####################"
    read -n1 -p">" grub
done
echo; echo
if [[ $grub == "1" ]]; then
    if [[ $table == "UEFI" ]]; then
        grub="grub os-prober efibootmgr grub-theme-vimix"
    else
        grub="grub os-prober grub-theme-vimix"
    fi
else
    grub=""
fi

# kernel
while [[ $kernel != "1" ]] && [[ $kernel != "2" ]] && [[ $kernel != "3" ]] && [[ $kernel != "4" ]]; do
    echo "####################"
    echo "Install what kernel:"
    echo "1) linux           - Vanilla Linux kernel"
    echo "2) linux-lts       - LTS Linux kernel"
    echo "3) linux-zen       - Zen Linux kernel"
    echo "4) linux-hardened  - Security-focused Linux kernel"
    echo "####################"
    read -n1 -p">" kernel
done
echo; echo
if [[ $kernel == "1" ]]; then
    kernel="linux"
elif [[ $kernel == "2" ]]; then
    kernel="linux-lts"
elif [[ $kernel == "3" ]]; then
    kernel="linux-zen"
elif [[ $kernel == "4" ]]; then
    kernel="linux-hardened"
else
    kernel=""
fi


packages="archlinux-keyring base base-devel $kernel linux-firmware $grub networkmanager nano curl"
pacstrap /mnt $packages


# Generate /etc/fstab
genfstab -U /mnt >> /mnt/etc/fstab
echo; echo
cat /mnt/etc/fstab

echo
echo "####################"
echo "Click any key; ctrl-c is abort"
echo "####################"
read -n1 -p">"; echo

# Copy script for chroot mode
cp -r /root/archlinux /mnt/root

echo
if [[ "$grub" == "grub os-prober" ]] && [[ $am == "2" ]]; then
    echo "####################"
    echo "In chroot mode do:"
    echo ">/root/archlinux/chroot /dev/sdX"
    echo "where /dev/sdX - disk for install grub"
    echo "####################"
else
    echo "####################"
    echo "In chroot mode do:"
    echo ">/root/archlinux/chroot"
    echo "####################"
fi

# Run arch-chroot

arch-chroot /mnt

# Clean
rm -rf /mnt/root/archlinux
umount -R /mnt

echo; echo
echo "####################"
echo "Please do this:"
echo ">poweroff   or   >reboot"
echo "Disable flash or disk"
echo "####################"
echo
echo "####################"
echo "After reboot run your user and"
echo "Please do this:"
echo ">cd ~/archlinux && ./packages"
echo "####################"
echo "####################"
echo