---
name: "archinstall"
section: "1"
platform: "linux"
package: "archinstall"
version: "4.5-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/archinstall"
---

# archinstall(1)

archinstall Documentation archinstall is a library which can be used to install Arch Linux. The library comes packaged with different pre-configured installers, such as the default Guided installation \<#guided\> installer. Some of the features of Archinstall are:

## NAME

archinstall - archinstall Documentation

**archinstall** is a library which can be used to install Arch Linux. The library comes packaged with different pre-configured installers, such as the default Guided installation \<#guided\> installer.

Some of the features of Archinstall are:

- •

  **Context friendly.** The library always executes calls in sequential order to ensure installation-steps don't overlap or execute in the wrong order. It also supports *(and uses)* context wrappers to ensure cleanup and final tasks such as **mkinitcpio** are called when needed.

- •

  **Full transparency** Logs and insights can be found at **/var/log/archinstall** both in the live ISO and partially on the installed system.

- •

  **Accessibility friendly** Archinstall works with **espeakup** and other accessibility tools thanks to the use of a TUI.

## GUIDED INSTALLATION

Archinstall ships with a pre-programmed Guided Installer \<https://github.com/archlinux/archinstall/blob/master/archinstall/scripts/guided.py\> guiding you through the mandatory steps as well as some optional configurations that can be done.

**Note:**

Other pre-programmed scripts can be invoked by executing **archinstall --script \<script\>** *(without .py)*. To see a complete list of scripts, run **archinstall --script list** or check the source code scripts \<https://github.com/archlinux/archinstall/tree/master/archinstall/scripts\> directory.

**Note:**

It's recommended to run **archinstall** from the official Arch Linux ISO.

**Warning:**

The installer will not configure WiFi before the installation begins. You need to read up on Arch Linux networking \<https://wiki.archlinux.org/index.php/Network\_configuration\> before you continue.

### Running the guided installation

To start the installer, run the following in the latest Arch Linux ISO:

```
archinstall
```

Since the Guided Installer \<https://github.com/archlinux/archinstall/blob/master/archinstall/scripts/guided.py\> is the default script, this is the equivalent of running **archinstall guided**

The guided installation also supports installing with pre-configured answers to all the guided steps. This can be a quick and convenient way to re-run one or several installations.

There are two configuration files, both are optional.

### --config

This parameter takes a local **.json** file as argument and contains the overall configuration and menu answers for the guided installer.

### --config-url

This parameter takes a remote **.json** file as argument and contains the overall configuration and menu answers for the guided installer.

**Note:**

You can always get the latest options for this file with **archinstall --dry-run**, this executes the guided installer in a safe mode where no permanent actions will be taken on your system but simulate a run and save the configuration to disk.

### Example usage

```
archinstall --config config.json
```

```
archinstall --config-url https://domain.lan/config.json
```

The contents of **https://domain.lan/config.json**:

```
{
  "additional-repositories": [],
  "archinstall-language": "English",
  "audio_config": null,
  "bootloader_config": {
    "bootloader": "Systemd-boot",
    "uki": false,
    "removable": false
  },
  "bootloader": "Systemd-boot",
  "debug": false,
  "disk_config": {
    "config_type": "manual_partitioning",
    "device_modifications": [
      {
        "device": "/dev/sda",
        "partitions": [
          {
            "btrfs": [],
            "flags": [
              "boot"
            ],
            "fs_type": "fat32",
            "length": {
              "sector_size": null,
              "total_size": null,
              "unit": "B",
              "value": 99982592
            },
            "mount_options": [],
            "mountpoint": "/boot",
            "obj_id": "369f31a8-2781-4d6b-96e7-75680552b7c9",
            "start": {
              "sector_size": {
                "sector_size": null,
                "total_size": null,
                "unit": "B",
                "value": 512
              },
              "total_size": null,
              "unit": "sectors",
              "value": 34
            },
            "status": "create",
            "type": "primary"
          },
          {
            "btrfs": [],
            "flags": [],
            "fs_type": "fat32",
            "length": {
              "sector_size": null,
              "total_size": null,
              "unit": "B",
              "value": 100000000
            },
            "mount_options": [],
            "mountpoint": "/efi",
            "obj_id": "13cf2c96-8b0f-4ade-abaa-c530be589aad",
            "start": {
              "sector_size": {
                "sector_size": null,
                "total_size": null,
                "unit": "B",
                "value": 512
              },
              "total_size": {
                "sector_size": null,
                "total_size": null,
                "unit": "B",
                "value": 16106127360
              },
              "unit": "MB",
              "value": 100
            },
            "status": "create",
            "type": "primary"
          },
          {
            "btrfs": [],
            "flags": [],
            "fs_type": "ext4",
            "length": {
              "sector_size": null,
              "total_size": null,
              "unit": "B",
              "value": 15805127360
            },
            "mount_options": [],
            "mountpoint": "/",
            "obj_id": "3e75d045-21a4-429d-897e-8ec19a006e8b",
            "start": {
              "sector_size": {
                "sector_size": null,
                "total_size": null,
                "unit": "B",
                "value": 512
              },
              "total_size": {
                "sector_size": null,
                "total_size": null,
                "unit": "B",
                "value": 16106127360
              },
              "unit": "MB",
              "value": 301
            },
            "status": "create",
            "type": "primary"
          }
        ],
        "wipe": false
      }
    ]
  },
  "disk_encryption": {
    "encryption_type": "luks",
    "partitions": [
      "3e75d045-21a4-429d-897e-8ec19a006e8b"
    ]
  },
  "hostname": "archlinux",
  "kernels": [
    "linux"
  ],
  "locale_config": {
    "kb_layout": "us",
    "sys_enc": "UTF-8",
    "sys_lang": "en_US"
  },
  "mirror_config": {
    "custom_servers": [
      {
        "url": "https://mymirror.com/$repo/os/$arch"
      }
    ],
    "mirror_regions": {
      "Australia": [
        "http://archlinux.mirror.digitalpacific.com.au/$repo/os/$arch"
      ]
    },
    "optional_repositories": [
      "testing"
    ],
    "custom_repositories": [
      {
        "name": "myrepo",
        "url": "https://myrepo.com/$repo/os/$arch",
        "sign_check": "Required",
        "sign_option": "TrustAll"
      }
    ]
  },
  "network_config": {},
  "no_pkg_lookups": false,
  "ntp": true,
  "offline": false,
  "packages": [],
  "parallel downloads": 0,
  "profile_config": null,
  "save_config": null,
  "script": "guided",
  "silent": false,
  "swap": true,
  "timezone": "UTC",
  "version": "2.6.0"
}
```

### --config options

**Warning:**

All key and value entries must conform to the JSON standard. Below is human readable examples with links, effectively breaking the syntax. Adapt the descriptions below to suit your needs and the JSON format.

**Note:**

Scroll to the right in the table to see required options.

### JSON options

| | | | |
| --- | --- | --- | --- |
| Key | Value(s) | Description | Required |
| additional-repositories | \[ multilib \<https://wiki.archlinux.org/title/Official\_repositories#multilib\>, testing \<https://wiki.archlinux.org/title/Official\_repositories#Testing\_repositories\> \] | Enables one or more of the testing and multilib repositories before proceeding with installation | No |
| archinstall-language | lang \<https://github.com/archlinux/archinstall/blob/master/archinstall/locales/languages.json\> | Sets the TUI language used *(make sure to use the \`\`lang\`\` value not the \`\`abbr\`\`)* | No |
| audio\_config | pipewire \<https://wiki.archlinux.org/title/PipeWire\>, pulseaudio \<https://wiki.archlinux.org/title/PulseAudio\> | Audioserver to be installed | No |
| bootloader\_config | { bootloader: Systemd-boot \<https://wiki.archlinux.org/title/Systemd-boot\>, grub \<https://wiki.archlinux.org/title/GRUB\>, limine \<https://wiki.archlinux.org/title/Limine\>, uki: **true**/**false**, removable: **true**/**false** } | Bootloader configuration. **bootloader** selects which bootloader to install *(grub/limine mandatory on BIOS)*. **uki** enables unified kernel images *(UEFI only, systemd-boot/limine only)*. **removable** installs to default removable media path /EFI/BOOT/ instead of NVRAM *(UEFI only, grub/limine only)* | Yes |
| debug | **true**, **false** | Enables debug output | No |
| disk\_config | *Read more under* Disk Configuration \<#disk-config\> | Contains the desired disk setup to be used during installation | No |
| disk\_encryption | *Read more about under* Disk Encryption \<#disk-encryption\> | Parameters for disk encryption applied on top of **disk\_config** | No |
| hostname | **str** | A string defining your machines hostname on the network *(defaults to \`\`archinstall\`\`)* | No |
| kernels | \[ linux \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\>, linux-hardened \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\>, linux-lts \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\>, linux-rt \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\>, linux-rt-lts \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\>, linux-zen \<https://wiki.archlinux.org/title/Kernel#Officially\_supported\_kernels\> \] | Defines which kernels should be installed and setup in the boot loader options | Yes |
| custom\_commands | *Read more under* Custom Commands \<#custom-commands\> | Custom commands that will be run post-install chrooted inside the installed system | No |
| locale\_config | {kb\_layout: lang \<https://wiki.archlinux.org/title/Linux\_console/Keyboard\_configuration\>, sys\_enc: Character encoding \<https://wiki.archlinux.org/title/Locale\>, sys\_lang: locale \<https://wiki.archlinux.org/title/Locale\>} | Defines the keyboard key map, system encoding and system locale | No |
| mirror\_config | {custom\_mirrors: \[ \<https://\>... \], mirror\_regions: { "Worldwide": \[ "\<https://geo.mirror.pkgbuild.com/$repo/os/$arch\>" \] } } | Sets various mirrors *(defaults to ISO's \`\`/etc/pacman.d/mirrors\`\` if not defined)* | No |
| network\_config | *\`see options under Network Configuration\`* | Sets which type of *(if any)* network configuration should be used | No |
| no\_pkg\_lookups | **true**, **false** | Disabled package checking against \<https://archlinux.org/packages/\> | No |
| ntp | **true**, **false** | enables or disables NTP \<https://wiki.archlinux.org/title/Network\_Time\_Protocol\_daemon\> during installation | No |
| offline | **true**, **false** | enables or disables certain online checks such as mirror reachability etc | No |
| packages | \[ \<package1\>, \<package2\>, ... \] | A list of packages to install during installation | No |
| parallel downloads | 0-∞ | sets a given number of parallel downloads to be used by pacman \<https://wiki.archlinux.org/title/Pacman#Enabling\_parallel\_downloads\> | No |
| profile\_config | *\`read more under the profiles section\`* | Installs a given profile if defined | No |
| script | guided \<https://github.com/archlinux/archinstall/blob/master/archinstall/scripts/guided.py\> *(default)*, minimal \<https://github.com/archlinux/archinstall/blob/master/archinstall/scripts/minimal.py\>, only\_hdd \<https://github.com/archlinux/archinstall/blob/master/archinstall/scripts/only\_hdd.py\>, When used to autorun an installation, this sets which script to autorun with | No |  |
| silent | **true**, **false** | disables or enables user questions using the TUI | No |
| swap | **true**, **false** | enables or disables swap | No |
| timezone | timezone \<https://wiki.archlinux.org/title/System\_time#Time\_zone\> | sets a timezone for the installed system | No |

**Note:**

If no entries are found in **disk\_config**, archinstall guided installation will use whatever is mounted currently under **/mnt/archinstall** without performing any disk operations.

### Options for --creds

Creds is a separate configuration file to separate normal options from more sensitive data like passwords. Below is an example of how to set the root password and below that are description of other values that can be set.

```
{
    "root_enc_password" : "SecretSanta2022"
}
```

### --creds options

| | | | |
| --- | --- | --- | --- |
| Key | Values | Description | Required |
| **!encryption-password** | **str** | Password to encrypt disk, not encrypted if password not provided | No |
| **root\_enc\_password** | **str** | The root account password | No |
| **users** | { "username": "\<USERNAME\>", "enc\_password": "\<PASSWORD\_HASH\>", "sudo": false } | List of regular user credentials, see configuration for reference | Maybe |

**Note:**

**users** is optional only if **root\_enc\_password** was set. **users** will be enforced otherwise and the minimum amount of users with sudo privileges required will be set to 1.

## DISK CONFIGURATION

There are only three modes in the **disk\_config** option. They are described in more detail below.

### "Leave as is"

```
{
    "config_type": "pre_mounted_config",
    "mountpoint": "/mnt/archinstall"
}
```

This mode will not perform any partitioning what so ever. Instead it relies on what's mounted manually by the user under **/mnt/archinstall**.

Given the following disk example:

```
/mnt/archinstall    (/dev/sda2)
     ├── boot       (/dev/sda1)
     └── home       (/dev/sda3)
```

Running **archinstall --conf your.json --silent** where the above JSON is configured. The disk will be left alone — and a working system will be installed to the above folders and mountpoints will be translated into the installed system.

**Note:**

Some disk layouts can be too complicated to detect, such as RAID setups. Please do report those setups on the Issue Tracker \<https://github.com/archlinux/archinstall\> so we can support them.

### Best Effort

**Warning:**

This mode will wipe data!

**Note:**

Note that this options is similar to the manual partitioning but is generated through the menu system! And the best effort layout might deviate slightly from some wiki guidelines in order to facilitate some optional configurations at a later stage.

```
{
    "disk_config": {
        "config_type": "default_layout",
        "device_modifications": [
            {
                "device": "/dev/sda",
                "wipe": true,
                "partitions": "..."
            }
        ]
    }
}
```

This mode will attempt to configure a sane default layout on the selected disks. Based on the chosen filesystem, and potential optional settings for said filesystem — different default layouts will be provided.

### Manual Partitioning

```
{
     "disk_config": {
         "config_type": "manual_partitioning",
         "device_modifications": [
            "filesystem struct"
         ]
     }
 }
```

Manual partitioning is the most complex one of the three. It offers you near endless flexibility of how to partition your disk. It integrates against pyparted \<https://github.com/dcantrell/pyparted\> and some control logic in **archinstall** that deals with creating things like subvolumes and compression.

Sizes are by default **sector** units, but other units are supported.

The options supplied to **manual\_partitioning** are dictionary definitions, where the following parameters must exist:

### JSON options

| | | | |
| --- | --- | --- | --- |
| Key | Value(s) | Description | Required |
| device | **str** | Which block-device to format | yes |
| partitions | \[ {key: val} \] | The data describing the change/addition in a partition | yes |
| wipe | **bool** | clear the disk before adding any partitions | No |

Each partition definition heavily relies on what filesystem is used. Below follow two of the more common filesystems, anything else will best be described by running **archinstall** to generate a desired configuration for the desired filesystem type — and copy the relevant parts for permanent configurations.

**Warning:**

Important to note that the units and positions in the examples below — are highly user specific!

### FAT32

```
{
        "btrfs": [],
        "flags": [
           "boot"
        ],
        "fs_type": "fat32",
        "length": {
           "sector_size": null,
           "total_size": null,
           "unit": "B",
           "value": 99982592
        },
        "mount_options": [],
        "mountpoint": "/boot",
        "obj_id": "369f31a8-2781-4d6b-96e7-75680552b7c9",
        "start": {
           "sector_size": {
               "sector_size": null,
               "total_size": null,
               "unit": "B",
               "value": 512
           },
           "total_size": null,
           "unit": "sectors",
           "value": 34
        },
        "status": "create",
        "type": "primary"
}
```

**Note:**

The **Boot** flag will make **archinstall** automatically set the correct ESP partition GUID if the system is booted with **EFI** support. The GUID will then be set to **C12A7328-F81F-11D2-BA4B-00A0C93EC93B**.

### EXT4

```
     {
   "btrfs": [],
   "flags": [],
   "fs_type": "ext4",
   "length": {
      "sector_size": null,
      "total_size": null,
      "unit": "B",
      "value": 15805127360
   },
   "mount_options": [],
   "mountpoint": "/",
   "obj_id": "3e75d045-21a4-429d-897e-8ec19a006e8b",
   "start": {
      "sector_size": {
         "sector_size": null,
         "total_size": null,
         "unit": "B",
         "value": 512
      },
      "total_size": {
         "sector_size": null,
         "total_size": null,
         "unit": "B",
         "value": 16106127360
      },
      "unit": "MB",
      "value": 301
   },
   "status": "create",
   "type": "primary"
}
```

### BTRFS

The BTRFS filesystem is inherently more complicated, thus the options are a bit more involved. This example contains both subvolumes and compression.

**Note:**

Note that the **"mountpoint": null** is used for the overall partition, and instead individual subvolumes have mountpoints set.

```
{
   "btrfs": [
       {
           "mountpoint": "/",
           "name": "@"
       },
       {
           "mountpoint": "/home",
           "name": "@home"
       },
       {
           "mountpoint": "/var/log",
           "name": "@log"
       },
       {
           "mountpoint": "/var/cache/pacman/pkg",
           "name": "@pkg"
       }
   ],
   "dev_path": null,
   "flags": [],
   "fs_type": "btrfs",
   "mount_options": [
       "compress=zstd"
   ],
   "mountpoint": null,
   "obj_id": "d712357f-97cc-40f8-a095-24ff244d4539",
   "size": {
       "sector_size": {
           "unit": "B",
           "value": 512
       },
       "unit": "B",
       "value": 15568207872
   },
   "start": {
       "sector_size": {
           "unit": "B",
           "value": 512
       },
       "unit": "MiB",
       "value": 513
   },
   "status": "create",
   "type": "primary"
}
```

## DISK ENCRYPTION

Disk encryption consists of a top level entry in the user configuration.

```
{
     "disk_encryption": {
         "encryption_type": "luks",
         "partitions": [
             "d712357f-97cc-40f8-a095-24ff244d4539"
         ]
     }
}
```

The **UID** in the **partitions** list is an internal reference to the **obj\_id** in the Disk Configuration \<#disk-config\> entries.

## CUSTOM COMMANDS

Custom commands is a configuration entry that allows for executing custom commands post-installation. The commands are executed with arch-chroot \<https://man.archlinux.org/man/extra/arch-install-scripts/arch-chroot.8.en\>.

The option takes a list of arguments, an example is:

```
{
    "custom_commands": [
        "hostname new-hostname"
    ]
}
```

The following example will set a new hostname in the installed system. The example is just to illustrate that the command is not run in the ISO but inside the installed system after the base system is installed.

More examples can be found in the code repository under examples/ \<https://github.com/archlinux/archinstall/tree/e6344f93f7e476d05bbcd642f2ed91fdde545870/examples\>

## KNOWN ISSUES

Some issues are out of the archinstall \<https://github.com/archlinux/archinstall/\> projects scope, and the ones we know of are listed below.

### Waiting for time sync #2144 \<https://github.com/archlinux/archinstall/issues/2144\>

The usual root cause of this is the network topology. More specifically timedatectl show \<https://github.com/archlinux/archinstall/blob/e6344f93f7e476d05bbcd642f2ed91fdde545870/archinstall/lib/installer.py#L136\> cannot perform a proper time sync against the default servers.

Restarting **systemd-timesyncd.service** might work but most often you need to configure **/etc/systemd/timesyncd.conf** to match your network design.

**Note:**

If you know your time is correct on the machine, you can run **archinstall --skip-ntp** to ignore time sync.

### Waiting for Arch Linux keyring sync (archlinux-keyring-wkd-sync) to complete. #2679 \<https://github.com/archlinux/archinstall/issues/2679\>

The **archlinux-keyring-wkd-sync.service** or **archlinux-keyring-wkd-sync.timer** can hang "indefinitely" sometimes. This is usually due to an inability to reach the key servers, or a slow connection towards key servers.

The script **/usr/bin/archlinux-keyring-wkd-sync** can be run manually, to verify if it's executing slowly or not.

If **systemctl show --property=ActiveEnterTimestamp --no-pager archlinux-keyring-wkd-sync.timer** shows nothing, it means the built-in sync never finished. Likewise **systemctl show --no-pager -p SubState --value archlinux-keyring-wkd-sync.service** most likely shows **dead**, which means the service never completed.

To fix this, try the following:

```
# killall gpg-agent
# rm -rf /etc/pacman.d/gnupg
# pacman-key --init
# pacman-key --populate
# pacman -Sy archlinux-keyring
# systemctl restart archlinux-keyring-wkd-sync.timer
```

**Note:**

If you know the ISO is the latest, and that you have valid GPG keys, try **archinstall --skip-wkd** to ignore waiting for the sync.

If you skip WKD sync, you might end up with:

```
> error: archinstall: signature from "Anton Hvornum (Torxed) <torxed@archlinux.org>" is unknown trust
> :: File /var/cache/pacman/pkg/archinstall-1.2.3-4-x86_64.pkg.tar.xz is corrupted (invalid or corrupted package (PGP signature)).
> Do you want to delete it? [Y/n]
```

### Missing Nvidia Proprietary Driver #2002 \<https://github.com/archlinux/archinstall/issues/2002\>

In some instances, the nvidia driver might not have all the necessary packages installed. This is due to the kernel selection and/or hardware setups requiring additional packages to work properly.

A common workaround is to install the package linux-headers \<https://archlinux.org/packages/core/x86\_64/linux-headers/\> and nvidia-dkms \<https://archlinux.org/packages/extra/x86\_64/nvidia-dkms/\>

### ARM, 32bit and other CPU types error out #1686 \<https://github.com/archlinux/archinstall/issues/1686\>, #2185 \<https://github.com/archlinux/archinstall/issues/2185\>

This is a bit of a catch-all known issue. Officially x86\_64 \<https://wiki.archlinux.org/title/Frequently\_asked\_questions#What\_architectures\_does\_Arch\_support?\> is only supported by Arch Linux. Hence little effort has been put into supporting other platforms.

In theory, other architectures should work but small quirks might arise.

PR's are welcome but please be respectful of the delays in merging. Other fixes, issues or features will be prioritized for the above reasons.

### Keyring is out of date #2213 \<https://github.com/archlinux/archinstall/issues/2213\>

Missing key-issues tend to be that the archlinux-keyring \<https://archlinux.org/packages/core/any/archlinux-keyring/\> package is out of date, usually as a result of an outdated ISO. There is an attempt from upstream to fix this issue, and it's the archlinux-keyring-wkd-sync.service \<https://gitlab.archlinux.org/archlinux/archlinux-keyring/-/blob/7e672dad10652a80d1cc575d75cdb46442cd7f96/wkd\_sync/archlinux-keyring-wkd-sync.service.in\>

The service starts almost immediately during boot, and if network is not configured in time — the service will fail. Subsequently the **archinstall** run might operate on an old keyring despite there being an update service for this.

There is really no way to reliably over time work around this issue in **archinstall**. Instead, efforts to the upstream service should be considered the way forward. And/or keys not expiring between a sane amount of ISOs.

**Note:**

The issue can happen on new ISO's too even as little as a few days after release, as some keys might expire right after the keyring is *"burnt in"* to the ISO.

**Note:**

Another common issue relating to the network not being configured, is that time might not be set correctly - resulting in the keyring not being able to update. See Waiting for time sync #2144.

### AUR packages

This is also a catch-all issue. AUR is unsupported \<https://wiki.archlinux.org/title/Arch\_User\_Repository#Updating\_packages\>, and until that changes we cannot use AUR packages to solve feature requests in **archinstall**.

This means that feature requests like supporting filesystems such as ZFS \<https://aur.archlinux.org/packages/zfs-linux\> can not be added, and issues cannot be solved by using AUR packages either.

**Note:**

But in spirit of giving the community options, **archinstall** supports Python Plugins \<#archinstall-plugins\>, which means you can run **archinstall --plugin \<url\>** and source an AUR plugin.

torxed/archinstall-aur \<https://github.com/torxed/archinstall-aur\> is a reference implementation for plugins:

```
# archinstall --plugin https://archlinux.life/aur-plugin
```

phisch/archinstall-aur \<https://github.com/phisch/archinstall-aur\> is another alternative:

```
# archinstall --plugin https://raw.githubusercontent.com/phisch/archinstall-aur/master/archinstall-aur.py
```

**Warning:**

This will allow for unsupported usage of AUR during installation.

## REPORT ISSUES & BUGS

Issues and bugs should be reported over at \<https://github.com/archlinux/archinstall/issues\>.

General questions, enhancements and security issues can be reported over there too. For quick issues or if you need help, head over to the Discord server which has a help channel.

### Log files

When submitting a help ticket, please include the **/var/log/archinstall/install.log**. It can be found both on the live ISO but also in the installed filesystem if the base packages were strapped in.

**Tip:**

```
An easy way to submit logs is archinstall share-log, which uploads install.log to paste.rs and prints a shareable URL.
Use caution when submitting other log files, but archinstall pledges to keep install.log safe for posting publicly!
```

There are additional log files under **/var/log/archinstall/** that can be useful:

- •

  **/var/log/archinstall/user\_configuration.json** - Stores most of the guided answers in the installer

- •

  **/var/log/archinstall/user\_credentials.json** - Stores any usernames or passwords, can be passed to **--creds**

- •

  **/var/log/archinstall/user\_disk\_layouts.json** - Stores the chosen disks and their layouts

- •

  **/var/log/archinstall/install.log** - A log file over what steps were taken by archinstall

- •

  **/var/log/archinstall/cmd\_history.txt** - A complete command history, command by command in order

- •

  **/var/log/archinstall/cmd\_output.txt** - A raw output from all the commands that were executed by archinstall

**Warning:**

We only try to guarantee that **/var/log/archinstall/install.log** is free from sensitive information. Any other log file should be pasted with **utmost care**!

## DISCORD

There's a discord channel which is frequented by some contributors \<https://github.com/archlinux/archinstall/graphs/contributors\>.

To join the server, head over to \<https://discord.gg/aDeMffrxNg\> and join in. There's not many rules other than common sense and to treat others with respect. The general chat is for off-topic things as well.

There's the **@Party Animals** role if you want notifications of new releases which is posted in the **#Release Party** channel. Another thing is the **@Contributors** role can be activated by contributors by writing **!verify** and follow the verification process.

Hop in, we hope to see you there! : )

## PYTHON LIBRARY

Archinstall ships on PyPi \<https://pypi.org/\> as archinstall \<https://pypi.org/project/archinstall/\>. But the library can be installed manually as well.

**Warning:**

These steps are not required if you want to use archinstall on the official Arch Linux ISO.

### Installing with pacman

Archinstall is on the official repositories \<https://wiki.archlinux.org/index.php/Official\_repositories\>. And it will also install archinstall as a python library.

To install both the library and the archinstall script:

```
pacman -S archinstall
```

Alternatively, you can install only the library and not the helper executable using the **python-archinstall** package.

### Installing from PyPI

The basic concept of PyPI applies using *pip*.

```
pip install archinstall
```

### Install using source code

You can also install using the source code. For sake of simplicity we will use **git clone** in this example.

```
git clone https://github.com/archlinux/archinstall
```

You can either move the folder into your project and simply do

```
import archinstall
```

Or you can use PyPA's build \<https://github.com/pypa/build\> and installer \<https://github.com/pypa/installer\> to install it into pythons module path.

```
$ cd archinstall
$ python -m build .
$ python -m installer dist/*.whl
```

## PYTHON MODULE

Archinstall supports running in module mode \<https://docs.python.org/3/library/\_\_main\_\_.html\>. The way the library is invoked in module mode is limited to executing scripts under the scripts \<https://github.com/archlinux/archinstall/tree/master/archinstall/scripts\> folder.

It's therefore important to place any script or profile you wish to invoke in the examples folder prior to building and installing.

### Pre-requisites

We'll assume you've followed the Install using source code \<#installing-python-manual\> method. Before actually installing the library, you will need to place your custom installer-scripts under scripts \<https://github.com/archlinux/archinstall/tree/master/archinstall/scripts\> as a python file.

More on how you create these in the next section.

**Warning:**

This is subject to change in the future as this method is currently a bit stiff. The script path will become a parameter. But for now, this is by design.

### Creating a script

Lets create a *test\_installer* - installer as an example. This is assuming that the folder *./archinstall* is a git-clone of the main repo. We begin by creating **scripts/test\_installer.py**. The placement here is important later.

This script can now already be called using **python -m archinstall --script test\_installer** after a successful installation of the library itself. But the script won't do much. So we'll do something simple like list all the hard drives as an example.

To do this, we'll begin by importing **archinstall** in our **scripts/test\_installer.py** and call a function within **archinstall**.

```
from archinstall.lib.disk.device_handler import device_handler
from pprint import pprint
pprint(device_handler.devices)
```

Now, go ahead and reference the Install using source code \<#installing-python-manual\> installation method. After running **python -m archinstall --script test\_installer** it should print something that looks like:

```
[
    BDevice(
        disk=<parted.disk.Disk object at 0x7fbe17156050>,
        device_info=_DeviceInfo(
            model='PC801 NVMe SK hynix 512GB',
            path=PosixPath('/dev/nvme0n1'),
            type='nvme',
            total_size=Size(value=512110190592, unit=<Unit.B: 1>,
            sector_size=SectorSize(value=512, unit=<Unit.B: 1>)),
            free_space_regions=[
                <archinstall.lib.disk.device.DeviceGeometry object at 0x7fbe166c4250>,
                <archinstall.lib.disk.device.DeviceGeometry object at 0x7fbe166c4c50>,
                <archinstall.lib.disk.device.DeviceGeometry object at 0x7fbe166c4a10>],
            sector_size=SectorSize(value=512, unit=<Unit.B: 1>),
            read_only=False,
            dirty=False
        ),
        partition_infos=[
            _PartitionInfo(
                partition=<parted.partition.Partition object at 0x7fbe166c4a90>,
                name='primary',
                type=<PartitionType.PRIMARY: 'primary'>,
                fs_type=<FilesystemType.FAT32: 'fat32'>,
                path='/dev/nvme0n1p1',
                start=Size(value=2048, unit=<Unit.sectors: 'sectors'>, sector_size=SectorSize(value=512, unit=<Unit.B: 1>)),
                length=Size(value=535822336, unit=<Unit.B: 1>, sector_size=SectorSize(value=512, unit=<Unit.B: 1>)),
                flags=[
                    <PartitionFlag.BOOT: flag_id=1, alias=None>,
                    <PartitionFlag.ESP: flag_id=18, alias=None>
                ],
                partn=1,
                partuuid='a26be943-c193-41f4-9930-9341cf5f6b19',
                uuid='6EE9-2C00',
                disk=<parted.disk.Disk object at 0x7fbe17156050>,
                mountpoints=[
                    PosixPath('/boot')
                ],
                btrfs_subvol_infos=[]
            ),
            _PartitionInfo(...)
        ]
    )
]
```

That means your script is in the right place, and **archinstall** is working as intended.

**Note:**

Most calls, including the one above requires root \<https://en.wikipedia.org/wiki/Superuser\> privileges.

## PYTHON PLUGINS

**archinstall** supports plugins via two methods.

First method is directly via the **--plugin** parameter when running as a CLI tool. This will load a specific plugin locally or remotely via a path.

The second method is via Python's built in plugin discovery \<https://packaging.python.org/en/latest/specifications/entry-points/\> using entry points \<https://docs.python.org/3/library/importlib.metadata.html#entry-points\> categorized as **archinstall.plugin**.

### --plugin parameter

The parameter has the benefit of being stored in the **--conf** state, meaning when re-running an installation — the plugin will automatically be loaded. Its limitation is that it requires an initial path to be known and written and be cumbersome.

### Plugin Discovery

This method allows for multiple plugins to be loaded with the drawback that they have to be installed beforehand on the system running **archinstall**. This mainly targets those who build their own ISO's and package specific setups for their needs.

### What's supported?

Currently the documentation for this is scarce. Until that is resolved, the best way to find supported features is to search the source code for plugin.on\_ \<https://github.com/search?q=repo%3Aarchlinux%2Farchinstall+%22plugin.on\_%22&type=code\> as this will give a clear indication of which calls are made to plugins.

### How does it work?

**archinstall** plugins use a discovery-driven approach where plugins are queried for certain functions. As an example, if a plugin has the following function:

```
def on_pacstrap(*packages):
    ...
```

The function **archinstall.Pacman().strap(\["some packages"\])** is hardcoded to iterate plugins and look for **on\_pacstrap** in the plugin. If the function exists, **.strap()** will call the plugin's function and replace the initial package list with the result from the plugin.

The best way to document these calls is currently undecided, as it's hard to document this behavior dynamically.

### Writing your own?

The simplest way currently is to look at a reference implementation or the community. Two of these are:

- •

  torxed/archinstall-aur \<https://github.com/torxed/archinstall-aur\>

- •

  phisch/archinstall-aur \<https://github.com/phisch/archinstall-aur\>

And search for plugin.on\_ \<https://github.com/search?q=repo%3Aarchlinux%2Farchinstall+%22plugin.on\_%22&type=code\> in the code base to find what **archinstall** will look for. PR's are welcome to widen the support for this.

## ARCHINSTALL.INSTALLER

The installer is the main class for accessing an installation-instance. You can look at this class as the installation you have or will perform.

Anything related to **inside** the installation, will be found in this class.

- **class archinstall.lib.installer.Installer(target: Path, disk\_config: DiskLayoutConfiguration, base\_packages: list\[str\] \| None = None, kernels: list\[str\] \| None = None, firmware: list\[str\] \| None = None, silent: bool = False)**

  ## Author

Anton Hvornum

## Copyright

2022, Anton Hvornum
