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====== Arch Linux ======
{{ media:image:logo:arch_linux.png}}
===== Installation =====

nbjp If you have an existing ''/home'' + ''user'', when you create a new user, take notes of the ''-m'' and ''-M'' flags for ''useradd''. You don't want to use ''-m'' and some guides will tell you, 'cause that creates a new ''/home'' dir. You can use ''-M'' to be sure one won't be created.

nbjp Furthermore, if you have existing partitions don't mount them during installation, just add them to the ''/etc/fstab'' later.

==== Post-Installation ====

=== Fonts ===
Best font package/s to install? //FIIK//. Inconsolata, DejaVu???

nbjp Font dirs are ''~/.local/share/fonts'' and ''/usr/share/fonts''

  * Check logs: ''grep /fonts ~/.local/share/xorg/Xorg.0.log''
  * Update font cache: ''fc-cache -fv''
  * List known fonts: ''fc-list : file''

== Defaults ==
Set in ''~/.config/fontconfig/fonts.conf'', EG:

<code>
<match>
	<test name="family">
		<string>monospace</string>
	</test>
	<edit name="family" mode="assign" binding="strong">
		<string>DejaVu Sans Mono</string>
	</edit>
</match>
</code>

If you wanna mess with fontconf more, there's good info here: https://seasonofcode.com/posts/how-to-set-default-fonts-and-font-aliases-on-linux.html

=== Compose Key ===
See: [[compose_key]]

=== For i3 ===
  * **acpi** for battery block
  * **xdotool** for getting window info

=== Time ===
You can have your system time (different from the hardware time, which on Linux should be the base UTC time) synced up so it's as correct as possible. Having your time out of sync can cause problems with authenticating with [[totp]], compiling software, etc.

There are multiple ways to go about this, but I found installing [[arch>openntpd]] to be the easiest.

  - ''# pacman -S openntpd'' to install
  - ''# sudo systemctl start openntpd.service'' to start the daemon
  - ''# sudo systemctl enable openntpd.service'' to make it run whenever you start the computer.

You can control which server it connects to, but the default does a good job of picking the best option :) The defaults do include [[Cloudflare]] and [[Google]], so if you want to comment that stuff out and grab something closer look at https://www.ntppool.org/ You'll have to restart the service after changing your config. Changing to a local server is maybe what fixed my time drifting out of sync? Update: Nope)

=== Utils ===
  * A file manager
  * A web browser

===== Audio =====
Audio on Linux should mostly just work, but if you're interested in music making it takes a bit of messing round setting up a thing (an audio server, like X is a display server) called JACK. Once that's done using hardware and making connections between different programs and hardware bits is kinda intuitive if you're familiar with synth patches.

  - A good first step is to run this script which'll identify what is and isn't already setup right:
    * [[git>raboof/realtimeconfigquickscan]]
    * [[aur>realtimeconfigquickscan-git]]
  - First task is to setup //realtime// stuff. You can get more advanced with this by doing things like using a low latency kernel, but for me that's not needed. Just install [[arch>community/any/realtime-privileges]] to allow realtime access via PAM is enough.
  - The make sure your user is in the ''realtime'' group. ''$ groups'' will list them for your current user.
    - If you're not add yourself with ''# usermod -a -G realtime [username]''
    - If you need to create the group do that with ''# groupadd realtime''
  - Next install [[arch>extra/x86_64/jack]] or [[arch>community/x86_64/jack2]].
  - Then you'll want a GUI for connecting things with JACK, see: [[archw>JACK_Audio_Connection_Kit#GUI]]. They all do the same thing best I can tell.
  - Reboot.

===== Packages =====

Arch uses the [[pacman]] package manager.

In addition to the official repositories, there is a repo of unofficial packages called the Arch User Repository (AUR).

I still haven't made any packages myself, but I have a few links on how to do it, and a few things I wouldn't mind packaging.

  * [[https://sleepmap.de/2022/packaging-for-arch-linux/|Packaging for Arch Linux]] - 2022 beginner guide, by David Runge.

===== Children =====
==== Antergos ====
**Antergos** is a basically Arch with a swish-o installer and an extra repo. It likes to Antergoserise (IE brand with it's wonky logo) things like Grub and LightDM, though that's repairable. It's easy enough to stop it it installing a bunch of extra stuff, as opposed to Manjaro(?).

It was a really good introduction to Linux for me! But it's since (2019) been discontinued :(

===== See Also =====
  * [[linux]]
  * [[pacman]]
  * https://wiki.archlinux.org/title/Makepkg#Improving_compile_times
  * https://wiki.archlinux.org/title/DeveloperWiki:Building_in_a_clean_chroot

{{tag>fixes linux operating-system software}}