This document is a guide for installing Arch Linux from the live system booted with the official installation image. Before installing, it would be advised to view the FAQ. For conventions used in this document, see Help:Reading. In particular, code examples may contain placeholders (formatted in
italics) that must be replaced manually.
For more detailed instructions, see the respective ArchWiki articles or the various programs' man pages, both linked from this guide. For interactive help, the IRC channel and the forums are also available.
Arch Linux should run on any x86_64-compatible machine with a minimum of 512 MB RAM. A basic installation with all packages from the group should take less than 800 MB of disk space. As the installation process needs to retrieve packages from a remote repository, this guide assumes a working internet connection is available.
- 1 Pre-installation
- 2 Installation
- 3 Configure the system
- 4 Reboot
- 5 Post-installation
It is recommended to verify the image signature before use, especially when downloading from an HTTP mirror, where downloads are generally prone to be intercepted to serve malicious images.
On a system with GnuPG installed, do this by downloading the PGP signature (under Checksums) to the ISO directory, and verifying it with
gpg --keyserver pgp.mit.edu --keyserver-options auto-key-retrieve --verify archlinux-<version>-x86_64.iso.sig.
pacman-key -v archlinux-<version>-x86_64.iso.sig from an existing Arch Linux installation as root.
- The signature itself could be manipulated if it is downloaded from a mirror site, instead of from archlinux.org as above. In this case, ensure that the public key, which is used to decode the signature, is signed by another, trustworthy key. The
gpgcommand will output the fingerprint of the public key.
- Another method to verify the authenticity of the signature is to ensure that the public key's fingerprint is identical to the key fingerprint of the Arch Linux developer who signed the ISO-file. See Wikipedia:Public-key_cryptography for more information on the public-key process to authenticate keys.
Boot the live environment
- Pointing the current boot device to a drive containing the Arch installation media is typically achieved by pressing a key during the POST phase, as indicated on the splash screen. Refer to your motherboard's manual for details.
- When the Arch menu appears, select Boot Arch Linux and press
Enterto enter the installation environment.
- See README.bootparams for a list of boot parameters, and packages.x86_64 for a list of included packages.
Set the keyboard layout
# ls /usr/share/kbd/keymaps/**/*.map.gz
To modify the layout, append a corresponding file name to German keyboard layout:, omitting path and file extension. For example, to set a
# loadkeys de-latin1
Console fonts are located in
/usr/share/kbd/consolefonts/ and can likewise be set with .
Verify the boot mode
# ls /sys/firmware/efi/efivars
If the directory does not exist, the system may be booted in BIOS or CSM mode. Refer to your motherboard's manual for details.
Connect to the Internet
# ping archlinux.org
If no connection is available, stop the dhcpcd service with
systemctl stop dhcpcd@interface where the
interface name can be tab-completed. Proceed to configure the network as described in Network configuration.
Update the system clock
Useto ensure the system clock is accurate:
# timedatectl set-ntp true
To check the service status, use
Partition the disks
# fdisk -l
Results ending in
airoot may be ignored.
The following partitions are required for a chosen device:
# fdisk /dev/sda
See Partitioning for more information.
Format the partitions
Once the partitions have been created, each must be formatted with an appropriate file system. For example, to format the root partition on
# mkfs.ext4 /dev/sda1
If you created a partition for swap (for example
/dev/sda3), initialize it with mkswap:
# mkswap /dev/sda3 # swapon /dev/sda3
See File systems#Create a file system for details.
Mount the file systems
Mount the file system on the root partition to
/mnt, for example:
# mount /dev/sda1 /mnt
Create mount points for any remaining partitions and mount them accordingly:
# mkdir /mnt/boot # mount /dev/sda2 /mnt/boot
genfstab will later detect mounted file systems and swap space.
Select the mirrors
Packages to be installed must be downloaded from mirror servers, which are defined in
/etc/pacman.d/mirrorlist. On the live system, all mirrors are enabled, and sorted by their synchronization status and speed at the time the installation image was created.
The higher a mirror is placed in the list, the more priority it is given when downloading a package. You may want to edit the file accordingly, and move the geographically closest mirrors to the top of the list, although other criteria should be taken into account.
This file will later be copied to the new system by pacstrap, so it is worth getting right.
Install the base packages
Use the pacstrap script to install the package group:
# pacstrap /mnt base
This group does not include all tools from the live installation, such as packages.x86_64 for comparison.or specific wireless firmware; see
Configure the system
# genfstab -U /mnt >> /mnt/etc/fstab
Check the resulting file in
/mnt/etc/fstab afterwards, and edit it in case of errors.
Change root into the new system:
# arch-chroot /mnt
Set the time zone:
# ln -sf /usr/share/zoneinfo/Region/City /etc/localtime
# hwclock --systohc
en_US.UTF-8 UTF-8 and other needed locales in
/etc/locale.gen, and generate them with:
LANG variable in accordingly, for example:
If you set the keyboard layout, make the changes persistent in :
Create the hostname file:
Add matching entries to:
127.0.0.1 localhost ::1 localhost 127.0.1.1 myhostname.localdomain myhostname
If the system has a permanent IP address, it should be used instead of
Complete the network configuration for the newly installed environment.
Creating a new initramfs is usually not required, because mkinitcpio was run on installation of the package with pacstrap.
For special configurations, modify thefile and recreate the initramfs image:
# mkinitcpio -p linux
Set the root password:
A Linux-capable boot loader must be installed in order to boot Arch Linux. See Category:Boot loaders for available choices.
If you have an Intel or AMD CPU, enable microcode updates.
Exit the chroot environment by typing
exit or pressing
Optionally manually unmount all the partitions with
umount -R /mnt: this allows noticing any "busy" partitions, and finding the cause with .
Finally, restart the machine by typing
reboot: any partitions still mounted will be automatically unmounted by systemd. Remember to remove the installation media and then login into the new system with the root account.
See General recommendations for system management directions and post-installation tutorials (like setting up a graphical user interface, sound or a touchpad).
For a list of applications that may be of interest, see List of applications.