Install Arch Linux
==================

This is my personal setup almost every time I install Arch Linux.
This is meant for me as being something I can quickly reference.

Change localkeys to my keyboard layout
--------------------------------------

In my case I have a Danish keyboard layout.

```bash
loadkeys 
```

You can find your keymap file by using localectl:

```bash
localectl list-keymaps
```

Or by simply looking inside the /usr/share/kbd/keymaps/ directory.

```bash
find /usr/share/kbd/keymaps/ -type f
```

Create Partitions
-----------------

```bash
cfdisk
```

Set up the partions, mount and use swap
---------------------------------------

Let us say you have a simple setup:

- /boot/efi     partition (vfat)
- /             partition (ext4)
- /home         partition (ext4)
- /suckless     partition (ext4)
- /storage      partition (ntfs)


NOTE: `lsblk` is a very nice tool to doublecheck your partition(s) structure.

First we format to the file systems we want:

```bash
mkfs.fat -F32 /dev/sdaxY (/boot/efi)
mkfs.ext4 /dev/sdaxY (/, /home, /suckless)
```

Create /mnt structure, one-liner:

```bash
mkdir -p /mnt/{boot,home,suckless,storage}
```

And then mount the file systems to /mnt:

```bash
# Mount / (root)
mount /dev/sdaxY /mnt
# Mount /boot, /home, /suckless, /storage
mount /dev/sdaxY /mnt/<point>
```


Installing the actual base system and doas
------------------------------------------

Install the base system, with sudo as well.

```bash
pacstrap /mnt base base-devel opendoas neovim networkmanager wpa_supplicant linux-zen linux-firmware
```

Generate the fstab (so it knows how things are mounted)
-------------------------------------------------------

This is why we had to mount everything as first, so genfstab
would know what to do when generating the fstab.

```bash
genfstab -U -p /mnt >> /mnt/etc/fstab
```

chroot into the installed system with /bin/bash
-----------------------------------------------

```bash
arch-chroot /mnt /bin/bash
```

Locale (system language)
------------------------

Depending on what you want, you change the /etc/locale.gen file:

```bash
nvim /etc/locale.gen
```

NOTE: Use UTF-8 whenever possible.

DOUBLE NOTE: If you are from America, you don't need to change the file.

When done, you simply generate the locales you want and tell the system what you
want to use.

Generate:

```bash
locale-gen
```

Tell the system what we use:

```bash
echo LANG=en_US.UTF-8 > /etc/locale.conf
export LANG=en_US.UTF-8
```

Timezone
--------

Symlink/Set your timezone:

```bash
ln -s /usr/share/zoneinfo/Europe/Belgrade /etc/localtime
```

Set system to the Hardware Clock
--------------------------------

```bash
hwclock --systohc --utc
```

Hostname
--------

Choose an awesome hostname:

```bash
echo myhostname > /etc/hostname
```

Edit /etc/vconsole.conf:

```bash
KEYMAP=
```

Add matching entries to hosts:

```bash
127.0.0.1	localhost
::1		localhost
127.0.1.1	myhostname.localdomain	myhostname
```


Ramdisk
-------

Initial ramdisk environment.

```bash
mkinitcpio -P
```

This actually ran under the pacstrap process, I just like to be safe.

Root Password
-------------

Be stronk:

```bash
passwd
```

Grub (Bootloader)
-----------------

Well, we need a bootloader:

```bash
pacman -S grub os-prober efibootmgr
```

```bash
grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=GRUB
grub-mkconfig -o /boot/grub/grub.cfg
```

Exit arch-chroot
----------------

```bash
exit
```

Umount /mnt and reboot
----------------------

Unmount EVERYTHING and reboot the system.

```bash
umount /dev/sdaxY
reboot
```

NOTE: You can use `umount -R /mnt` to recursively unmount everything in /mnt

Login as Root to Arch Linux and permantly set the keymap (keyboard)
-------------------------------------------------------------------

Now we want to make our keyboard layout permanent:

```bash
localectl set-keymap --no-convert 
```


Add User and set Password
-------------------------

```bash
useradd -m -g users -G lp,scanner,audio,video,optical,network,games,wheel -s /bin/bash username
passwd username
```

Change sudoers file using nvim
------------------------------

```bash
EDITOR=nvim visudo
```

Uncomment wheel group.

`# %wheel ALL=(ALL:ALL) ALL`

Logout of Root
--------------

```bash
exit
```

Login as your username and test sudo with pacman
------------------------------------------------

```bash
sudo pacman -Syy
sudo pacman -Syu
```