commands.txt

fdisk /dev/sda

[Boot]
n
p
1
[Press Enter]
+512M
t
0c (W95 FAT 32 LBA)
a

[Root]
n
[Press Enter]
[Press Enter]
[Press Enter]
[Press Enter]
w

[Formatting And Mounting]
mkfs.fat -F32 /dev/sda1
cryptsetup luksFormat /dev/sda2
cryptsetup open /dev/sda2 cryptroot
pvcreate /dev/mapper/cryptroot
vgcreate vgname /dev/mapper/cryptroot
lvcreate -l 100%FREE vgname -n root
mkfs.btrfs /dev/mapper/vgname-root
mount /dev/mapper/vgname-root /mnt
btrfs subvolume create /mnt/@
btrfs subvolume create /mnt/@home
umount /mnt
mount -o subvol=@ /dev/mapper/vgname-root /mnt
mount -o subvol=@home /dev/mapper/vgname-root /mnt/home

[Installing]
pacstrap /mnt base linux linux-firmware btrfs-progs base-devel nano
genfstab -U /mnt >> /mnt/etc/fstab
arch-chroot /mnt
pacman -Syy lvm2
nano /etc/mkinitcpio.conf
HOOKS=(encrypt btrfs lvm2) <- Add these to the uncommented hooks line.
mkinitcpio -P
pacman -S grub
grub-install /dev/sda
blkid -s UUID -o value /dev/sda2 >> /etc/default/grub
nano /etc/default/grub
GRUB_ENABLE_CRYPTODISK=y (Uncomment this)

GRUB_CMDLINE_LINUX="cryptdevice=UUID=[PASTE UUID HERE]:cryptroot root=/dev/mapper/vgname-root rootfstype=btrfs rootflags=subvol=@"

grub-mkconfig -o /boot/grub/grub.cfg
passwd
Pacman -S networkmanager
systemctl enable NetworkManager

[Sudo]
useradd -m test (m is creating home directory)
passwd test
pacman -S sudo
EDITOR=nano visudo
test ALL=(ALL) ALL <-- Add this to the end of the file, or the beginning.

# For testing
su - test
sudo ls /root

[KDE + SDDM]
pacman -S xorg
pacman -S plasma-desktop
pacman -S sddm
systemctl enable sddm