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==== Arch Install ====

{{tag>linux arch partition luks pacman}}


  * Download arch linux iso then flash usb 
<code>
wget http://archlinux.uk.mirror.allworldit.com/archlinux/iso/2024.01.01/archlinux-2024.01.01-x86_64.iso
sudo dd if=/path/to/archlinux-2024.01.01-x86_64.isotimen83 of=/dev/sdX status=progress
</code>

  * Boot with archlinux iso

  * Set the console keyboard layout - did not set 

  * Setup network - wifi in my case
<code>
iwctl
[iwd]# station wlan0 connect SSID
exit or ctrl+d
</code>
  * verify
<code>
ping archlinux.org
</code>

  * Update system clock
<code>
timedatectl set-timezone Europe/Dublin
</code>

  * Partition the disks
used fdisk to create 2 partitions
<code>
sda1 ext4 /boot type 83 (and make it bootable)
sda2 ext4 LVM - type 8e
</code>
  * encrypt the disk using LUKS:
<code>
cryptsetup luksFormat /dev/sda2
</code>
  * encrypt the disk:
<code>
cryptsetup luksOpen /dev/sda2 luks
</code>

  * LVM Configuration

  * create the physical volume
<code>
pvcreate /dev/mapper/luks
</code>

  * create volume group
<code>
vgcreate vg0 /dev/mapper/luks
</code>
  * create the virtual volumes
<code>
lvcreate -L 8G vg0 -n swap # make it double size of your ram
lvcreate -L 40G vg0 -n root
lvcreate -l 100%FREE vg0 -n home
</code>
  * make swap partition and format these partitions
<code>
mkswap /dev/mapper/vg0-swap
mkfs.ext4 /dev/mapper/vg0-home
mkfs.ext4 /dev/mapper/vg0-root
mkfs.ext4 /dev/sda1
</code>
  * Mount partition, create boot and home mount points, turn on swap part
<code>
mount /dev/mapper/vg0-root /mnt
mkdir -p /mnt/{boot,home}
mount /dev/mapper/vg0-home /mnt/home
mount /dev/sda1 /mnt/boot
swapon /dev/mapper/vg0-swap
</code>
  * Install base system
<code>
pacstrap /mnt base vim lvm2 linux linux-firmware
</code>

  * if installation brings some issues with old keys run following and rerun ''pacstrap'' command
<code>
pacman -Sy archlinux-keyring
</code>

  * Generate fstab 
<code>
genfstab -U /mnt >> /mnt/etc/fstab
</code>

  * Change the root path to the new system
<code>
arch-chroot /mnt
</code>

  * Timezone
<code>
timedatectl set-timezone Europe/Dublin
hwclock --systohc --utc
</code>
  * Set host name
<code>
echo arch > /etc/hostname
</code>
  * Set locale
<code>
vim /etc/locale.gen
# uncomment:
# en_US.UTF-8 UTF-8
</code>
then run 
<code>
locale-gen
</code>
then 
<code>
echo LANG=en_US.UTF-8 > /etc/locale.conf
echo LANGUAGE=en_US >> /etc/locale.conf
echo LC_ALL=C >> /etc/locale.conf
</code>
  * Set root password
<code>
passwd root
</code>

  * configure the initram file system to load LVM and LUKS modules before loading the kernel
<code>
vim /etc/mkinitcpio.conf
# and add 'encrypt lvm2' before 'filesystem' 
HOOKS="base udev autodetect modconf kms keyboard keymap consolefont block encrypt lvm2 filesystems fsck"
</code>
then run 
<code>
mkinitcpio -P
</code>

  * Install grub
<code>
pacman -S grub networkmanager sudo
grub-install --target=i386-pc /dev/sda
</code>
  * edit file ''/etc/default/grub'', add ''lvm'' and ''cryptdevice=/dev/sda2:luks'' to following:
<code>
GRUB_PRELOAD_MODULES='lvm'
GRUB_CMDLINE_LINUX="cryptdevice=/dev/sda2:luks"
</code>
and run following to regenerate grub config file
<code>
grub-mkconfig -o /boot/grub/grub.cfg
</code>
  * Exit from chroot mode, unmount part and reboot machine
<code>
exit
umount -R /mnt
reboot
</code>
==== After install steps ====
  * Connect wire Eth0 and start Network Manager - then setup wifi
<code>
systemctl enable --now NetworkManager
nmtui
</code>
  * Install xorg,lightdm and i3 
<code>
pacman -S bash-completion xorg-server
pacman -S xorg-xinit xorg-xkill
pacman -S xterm firefox
pacman -S i3-wm i3lock i3status dmenu network-manager-applet
pacman -S lightdm lightdm-gtk-greeter
systemctl enable lightdm
reboot
</code>
  * Create user
<code>
useradd -m karcio
passwd karcio
### add user to sudo
su - karcio
echo "exec i3" >> ~/.xinitrc
</code>
  * Install sound
<code>
sudo pacman -S pulseaudio pulseaudio-alsa alsa-utils
</code>
  * Install notification
<code>
sudo pacman -S notification-daemon libnotify
</code>
then edit ''/usr/share/dbus-1/services''
<code>
sudo vim /usr/share/dbus-1/services/org.freedesktop.Notifications.service
</code>
and add following lines: 
<code>
[D-BUS Service]
Name=org.freedesktop.Notifications
Exec=/usr/lib/notification-daemon-1.0/notification-daemon
</code>
  * Install additional fonts
<code>
sudo pacman -S ttf-font-awesome terminus-font ttf-dejavu
</code>
  * Install cron
<code>
sudo pacman -S cronie
sudo systemctl enable --now cronie.service
</code>
  * Install graph stuff
<code>
sudo pacman -S feh
</code>
  * Install some tools
<code>
sudo pacman -S git alacritty mc zip unzip
</code>

**Install with uefi:** https://blog.bespinian.io/posts/installing-arch-linux-on-uefi-with-full-disk-encryption/