====== Archlinux With BTRFS + systemd-boot  + LARBS + Blackarch repos ======
Experience the thrill !  systemd-boot looks less bloated than grub while graphically horrible :-)\\
Machine has 2 hard drives:
  * sdb 256GB msata
  * sda 1T SSD

The concept will be to put all system on sda and and data/VMs on sdb 

Dowload [[https://archlinux.org/download/|ISO ]]

====== Enable SSH ======
On the live system,
===== Start SSHD =====

<code bash>systemctl start sshd.service</code>

===== Set a password for root =====
<code bash>passwd</code>
===== Look up the IP address of the live system =====
<code bash>ip a</code>

====== Remote PC ======
On a second PC, connect to the live system via SSH:

<code bash>ssh root@<IP-OF-THE-LIVE-SYSTEM></code>

===== Partition disk =====
A very simple setup:
  * sdb1 fat32 EFI crap (from Windows)550MB
  * sdb2 swap 10G
  * sdb3 btrfs with tons of subvolumes

Adapt if you have only one drive with full Linux install like:
  * sda1 (home) btrfs all drive


<code bash>gdisk /dev/sda
# tout sda en linux 
o [enter]
n[enter]
[enter x 4]
w [enter]
</code>

<code bash>gdisk /dev/sdb</code>
==== Create new partition table ====
<code>
Command (? for help): o</code>

==== Create an EFI partition (optional if you already have Windows installed)====
<code>Command (? for help): n [enter]
Partition number (1-128, default 1):[enter]
First sector (34-500118158, default = 2048) or {+-}size{KMGTP}:[enter]
Last sector (2048-500118158, default = 500118158) or {+-}size{KMGTP}: +550M
Hex code or GUID (L to show codes, Enter = 8300): EF00
</code>
 (choose size 550M and __hex code EF00__):
==== SWAP ====
<code> Command (? for help): n
Partition number (2-128, default 2): [enter]
First sector (34-500118158, default = 1128448) or {+-}size{KMGTP}:[enter]
Last sector (1128448-500118158, default = 500118158) or {+-}size{KMGTP}: +10G[enter]
Hex code or GUID (L to show codes, Enter = 8300): 8200 [enter]
</code>
==== Create a root partition ====
Select default values
<code>Command (? for help): n [enter]
Partition number (3-128, default 3): [enter]
First sector (34-500118158, default = 22099968) or {+-}size{KMGTP}: [enter]
Last sector (22099968-500118158, default = 500118158) or {+-}size{KMGTP}: [enter]
Hex code or GUID (L to show codes, Enter = 8300): [enter]
</code>
==== Write the new partitions to disk ====

<code>Command (? for help): w</code>

===== Format partitions =====

<code>
mkfs.vfat -F32 -n EFI /dev/sdb1 ## if not already existing
mkswap -L SWAP /dev/sdb2 # Adapt if necessary
mkfs.btrfs -L ROOT /dev/sdb3 # Adapt if necessary
mkfs.btrfs -L HOME /dev/sda1</code>

===== Subvolumes creation =====
<code bash>
# Adapt if necessary
mount /dev/sdb3 /mnt 
btrfs sub create /mnt/@
btrfs sub create /mnt/@pkg
btrfs sub create /mnt/@snapshots
btrfs sub create /mnt/@btrfs
umount /mnt

mount /dev/sda1 /mnt
btrfs sub create /mnt/@home
umount /mnt
</code>


===== Mount the subvolumes =====
<code bash>
mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvol=@ /dev/disk/by-label/ROOT /mnt
mkdir -p /mnt/{boot,home,var/cache/pacman/pkg,.snapshots,btrfs}
#mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvol=@home /dev/disk/by-label/ROOT /mnt/home
mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvol=@home /dev/disk/by-label/HOME /mnt/home
mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvol=@pkg /dev/disk/by-label/ROOT /mnt/var/cache/pacman/pkg
mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvol=@snapshots /dev/disk/by-label/ROOT /mnt/.snapshots
mount -o noatime,nodiratime,compress=zstd,space_cache,ssd,subvolid=5 /dev/disk/by-label/ROOT /mnt/btrfs
</code>
<code bash>
mount /dev/sdb1 /mnt/boot # Adapt if necessary
swapon /dev/sdb2 # Adapt if necessary
</code>
===== Base System =====
Install Arch Linux with (adjust this list to your needs):

<code bash>pacstrap /mnt linux base base-devel btrfs-progs intel-ucode vim linux-firmware dhcpcd networkmanager</code>
Optional, for über security :!: If Multibooting... Microsoft creates a 100MB EFI partition so you cannot have 20 linux kernel...)
Second warning :!: some modules need recompiling (acpi_call/tpacpi-bat):
<code bash>pacstrap /mnt linux-hardened base base-devel btrfs-progs intel-ucode vim linux-firmware dhcpcd networkmanager</code>
===== Generate /etc/fstab =====
<code bash>genfstab -U /mnt >> /mnt/etc/fstab</code>
====== System Configuration ======

===== chroot into the new system =====
<code bash>arch-chroot /mnt/</code>

===== Set host name =====
<code bash>echo <YOUR-HOSTNAME> > /etc/hostname</code>
===== Set locale =====
<code bash>echo LANG=en_US.UTF-8 > /etc/locale.conf</code>
Uncomment the following appropriates locales in /etc/locale.gen
<code>
en_US.UTF-8
</code>
===== Generate locale =====
<code bash>locale-gen</code>
===== Set keyboard layout and font =====

<code bash>echo KEYMAP=us-acentos > /etc/vconsole.conf
echo FONT=lat9w-16 >> /etc/vconsole.conf</code>
===== Set time zone =====
<code bash>ln -sf /usr/share/zoneinfo/Europe/Zurich /etc/localtime</code>
===== /etc/hosts =====
<code perl>
#<ip-address>	<hostname.domain.org>	<hostname>
127.0.0.1	<YOUR-HOSTNAME>.localdomain	<YOUR-HOSTNAME>
</code>

====== Initramfs ======

Configure the creation of initramfs by editing /etc/mkinitcpio.conf.\\
Change the line HOOKS=... to:

<code bash>HOOKS=(base keyboard udev autodetect modconf block keymap btrfs filesystems)</code>
===== Recreate initramfs =====
<code bash>mkinitcpio -p linux</code>
====== Boot Manager ======
===== Install systemd-boot =====
<code bash> bootctl --path=/boot install</code>

===== Arch entry =====

Create file **/boot/loader/entries/arch.conf** and fill it with:
<code perl>
title Arch Linux
linux /vmlinuz-linux
initrd /intel-ucode.img
initrd /initramfs-linux.img
options root="LABEL=ROOT" rootflags=subvol=@ rw
</code>
Edit file **/boot/loader/loader.conf** and fill it with:
<code perl>
default  arch.conf
timeout  4
console-mode max
#editor   no
</code>

====== Final Steps ======
Exit chroot, unmount partitions and reboot:

<code bash>
passwd
exit
umount -R /mnt
reboot</code>

====== Troubleshoot ======
===== Network =====
If you forgot dhcpcd... like I did first time:
<code bash>ip addr add 192.168.1.116/24 dev enp0s25
ip link set enp0s25 up
ip route add 192.168.1.0/24 via 192.168.1.1 dev ens0p25
echo "nameserver 192.168.1.1">> /etc/resolv.conf
</code>

====== Post install ======
===== Wifi =====
<code bash>pacman -S linux-firmware</code>
To know the module:
<code bash>lspci -k</code>
Set the interface up
<code bash> ip link set wlp3s0 up</code>

===== Enp0s25 =====
Isn't that a beautiful name? so romantic and of course more simple than eth0.... Thank you Lenard
<code bash>
systemctl enable --now NetworkManager
</code>
If you don't want NetworkManager
<code bash>systemctl enable dhcpcd@enp0s25 </code>

===== Tools =====
Start building and installing nice stuff
<code bash>pacman -Sy yay git zsh htop openssh man-pages</code>
===== Configure pacman =====
<code bash>vi /etc/pacman.conf</code>
See: [[https://man.archlinux.org/man/pacman.conf.5| man 5 pacman.conf]
=== Color ===
Remove the "#" in front of the line <code perl>#Color</code>
===== LARBS =====
<code>curl -LO larbs.xyz/larbs.sh
sh larbs.sh</code>
FAILOVER method:
<code> git clone https://github.com/LukeSmithxyz/LARBS.git
cd LARBS
sh larbs.sh
</code>
===== Battery =====
==== tp-battery-mode ====
  * https://wiki.archlinux.org/index.php/Tp-battery-mode
<code bash>yay -S tp-battery-mode</code>
Config
<code bash>vi /etc/tp-battery-mode.conf</code>
<code perl>
START_THRESHOLD=85
STOP_THRESHOLD=100
</code>
Enable
<code bash>systemctl enable tp-battery-mode
systemctl start tp-battery-mode</code>

==== Battery Modes ====
  * https://wiki.archlinux.org/index.php/Laptop#Power_management
  * https://wiki.archlinux.org/index.php/Laptop_Mode_Tools
  * https://wiki.archlinux.org/index.php/Power_management#Laptop_Mode

<code bash>pacman -S acpi acpid tpacpi-bat
systemctl enable --now acpid
</code>

Then add
<code perl>vm.laptop_mode = 5</code>
in **/etc/sysctl.d/laptop.conf**
=== Laptop Mode Tools ===
From aur
<code> yay laptop-mode-tools
systemctl enable --now laptop-mode
</code>
=== CPU frequenct Squaling ===
<code bash>pacman -Sy i7z thermald cpupower
systemctl enable --now thermald
systemctl enable --now cpupower
acpi -i -b</code>
<code bash>vi /etc/default/cpupower</code>
:!: Uncomment #ondemand


===== Backlight =====
Fn+F8/F9 works when adding
<code perl>acpi_backlight=vendor</code>
to **/boot/loader/entries/arch.conf**
===== Firewall =====
  * https://wiki.archlinux.org/index.php/Firewalld
<code bash>pacman -S firewalld
systemctl enable --now firewalld</code>
===== SUSPEND to disk =====
This requires a SWAP partition/file\\
  * https://wiki.archlinux.org/index.php/Mkinitcpio (resume HOOK)
  * https://wiki.archlinux.org/index.php/Hibernation
<code perl>resume="PARTLABEL=SWAP"</code> FIXME DOESN'T WORK\\
<code perl>resume=UUID=8e3dfb9c-a8df-4312-9a7f-bf82120fb0ab</code>

in **/boot/loader/entries/arch.conf**
<code perl>HOOKS=(base udev autodetect modconf block keymap btrfs resume filesystems)</code> in **/etc/mkinitcpio.conf**
then
</code bash>mkinitcpio -P</code>
===== TROUBLESHOOTING =====
<code bash> journalctl -p 3 -xb</code>
===== BLUETOOTH =====
  * https://wiki.archlinux.org/index.php/Bluetooth
<code bash>
 pacman -S bluez bluez-utils
modprobe btusb
systemctl enable --now bluetooth
yay bcm20702a
bluetoothctl</code>
==== NTP ====
  * https://wiki.archlinux.org/index.php/Chrony

<code bash>systemctl disable systemd-timesyncd
pacman -S chrony</code>
  * /etc/chrony.conf
Uncomment / change iburst to offline
<code perl>
server 0.arch.pool.ntp.org offline
server 1.arch.pool.ntp.org offline
server 3.arch.pool.ntp.org offline
</code>
  * Run
<code bash> 
systemctl enable --now chronyd
chronyc
chronyc> online
200 OK
chronyc> exit
</code>
==== Blackarch ====
<code bash>curl -O https://blackarch.org/strap.sh
chmod +x strap.sh
sudo ./strap.sh
</code>
==== print ====
  * https://wiki.archlinux.org/index.php/CUPS
<code bash>pacman -S cups cups-pdf
systemctl enable --now cups</code>






====== TODO ======
===== AUDIO =====
  * https://wiki.archlinux.org/index.php/Advanced_Linux_Sound_Architecture#Unmuting_the_channels

<code bash>pacman -S alsa-utils alsa-plugins
alsamixer
speaker-test -c 2
</code>


===== TIMESHIFT =====
  * https://github.com/teejee2008/timeshift

===== Suspend to disk/ram =====
check if suspend works on hardened linux + if reboot works after no more batteries
-> 5% -> hibernate rule etc,,,

===== Mutt-Wizzard =====

===== Cybersecurity tools =====

==== Hardened linux ====


=== Sound ===


===== Optional utilities =====

ccze libreoffice discord irssi newsflash kitty zsh-* starship


===== Starship prompt =====
  * https://starship.rs/

===== Battery =====
cpufreq ?

MISSING: backlight on battery
===== US International layout =====
if using larbs:
<code bash> 
vi ~/.local/bin/remaps
</code>
add
<code perl>
setxkbmap -layout us -variant intl</code>
====== Référence ======
  * https://nerdstuff.org/posts/2020/2020-004_arch_linux_luks_btrfs_systemd-boot/
  * https://wiki.archlinux.org/index.php/Pacman#Configuration
  * https://lukesmith.xyz | https://larbs.xyz ( https://github.com/lukesmithxyz/larbs ) | https://github.com/lukesmithxyz/voidrice (dotfiles)