# Installation on Dell XPS 9570

# Connect to Internet


# Sync clock
timedatectl set-ntp true

# Create three partitions:
# 1 512MB EFI partition # Hex code ef00
# 2 rest Linux partiton  # Hex code 8300

cgdisk /dev/nvme0n1

# Format EFI partition
mkfs.vfat -F 32 -n BOOT /dev/nvme0n1p1

o=compress=lzo,space_cache,noatime,ssd
o_btrfs=$o,defaults,x-mount.mkdir

# mount -t btrfs /dev/nvme0n1p2 /mnt

# Create BTRFS subvolumes + mount directories
btrfs subvolume create root
btrfs subvolume create home
btrfs subvolume create snapshots
btrfs subvolume create tmp
btrfs subvolume create opt
btrfs subvolume create var

umount /mnt


# Mount BTRFS subvolumes
mount -o subvol=root,$o_btrfs /dev/mapper/root /mnt
mount -o subvol=home,$o_btrfs /dev/mapper/root /mnt/home
mount -o subvol=snapshots,$o_btrfs /dev/mapper/root /mnt/.snapshots
mount -o subvol=tmp,$o_btrfs /dev/mapper/root /mnt/tmp
mount -o subvol=opt,$o_btrfs /dev/mapper/root /mnt/opt
mount -o subvol=var,$o_btrfs /dev/mapper/root /mnt/var

# Mount EFI partition
mkdir /mnt/boot
mount /dev/nvme0n1p1 /mnt/boot


# Install the base system plus a few packages
pacstrap /mnt base base-devel btrfs-progs zsh neovim git sudo iwd

genfstab -Up /mnt >>/mnt/etc/fstab

# Verify and adjust /mnt/etc/fstab
# Change relatime on all non-boot partitions to noatime (reduces wear if using an SSD)

arch-chroot /mnt

echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
locale-gen
localectl set-locale LANG=en_US.UTF-8


# Setup time
ln -s /usr/share/zoneinfo/America/Newyork  etc/localtime
hwclock --systohc --localtime


# Set locale
echo 'LANG=en_US.UTF-8' > /etc/locale.conf

# set hostname
echo xcloud >/etc/hostname
echo '127.0.0.1 xcloud  xcloud.localdomain' > /etc/hosts
echo '::1 xcloud  xcloud.localdomain' > /etc/hosts


# Set password for root
passwd

# Add real group / user
groupadd -g 1001 <groupname>
useradd -m -g '<groupname>' -G users,wheel,audio,video -s /bin/zsh '<username>'
passwd '<username>'
echo '<username> ALL=(ALL) ALL' > /etc/sudoers.d/<username>


# Configure mkinitcpio with modules needed for the initrd image
vi /etc/mkinitcpio.conf
# remove HOOK "fsck", add "keymap encrypt" before "filesystems": 
# HOOKS="base udev autodetect modconf block btrfs keymap encrypt filesystems keyboard"

# Regenerate initrd image
mkinitcpio -p linux

# Setup systemd-boot
bootctl --path=/boot install

# Enable Intel microcode updates
pacman -S intel-ucode


/boot/loader/entries/arch.conf
---
title          Arch Linux Encrypted
linux          /vmlinuz-linux
initrd		/intel-ucode.img
initrd         /initramfs-linux.img
options cryptdevice=UUID=<cryptdevice-UUID>:root root=UUID=<root-UUID> rootflags=subvol=@ rw
---

# Set default bootloader entry
---
/boot/loader/loader.conf
---
default		arch
timeout   4
editor    0
---

###
### Useful services
###

pacman -S acpid ntp avahi cups cronie

systemctl enable acpid
systemctl enable ntpd
systemctl enable avahi-daemon
systemctl enable org.cups.cupsd.service
systemctl enable cronie

systemctl enable systemd-timesyncd.service
systemctl start systemd-timesyncd.service

pacman -S networkmanager
pacman -S network-manager-applet

systemctl enable NetworkManager

pacman -S bash-completion

vi /etc/modprobe.d/modprobe.conf
# content:
# blacklist psmouse


###
### X11 / Gnome
###

pacman -S xorg-server xorg-xinit
pacman -S xf86-video-intel
pacman -S alsa-utils alsa-tools pulseaudio pavucontrol nm-connection-editor
pacman -S gnome gnome-extra gdm
pacman -S chromium emacs openssh

# exit arch-chroot
exit

# cleanup EFI-bootmanager entries
efibootmgr
efibootmgr -b 0 -B # e.g. remove Boot0000 

# unmount all filesystems
umount -R /mnt
reboot

###
### Yaourt
###

# Installation from AUR
# install package-query first:
curl -O https://aur.archlinux.org/cgit/aur.git/snapshot/package-query.tar.gz
tar -xvzf package-query.tar.gz
cd package-query
makepkg -si
# then yaourt itself:
cd ..
curl -O https://aur.archlinux.org/cgit/aur.git/snapshot/yaourt.tar.gz
tar -xvzf yaourt.tar.gz
cd yaourt
makepkg -si

systemctl start gdm