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Arch Linux ARM USB Boot on Raspberry Pi 4B

Index

1. Requirements
2. Flash latest EEPROM
3. Change Raspberry Boot Order
4. Install Arch Linux on USB device
   1. Format USB device
5. (Optional) Migrate to hybrid MBR with GPT

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Installing with apt-get

#!/bin/sh
# https://docs.docker.com/engine/installation/linux/ubuntu/#install-using-the-repository
sudo apt-get update && sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo apt-key fingerprint 0EBFCD88 | grep [email protected] || exit 1
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update

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cat <<EOF > user-data
#cloud-config
debug: True
disable_root: False
ssh_deletekeys: False
ssh_pwauth: True
ssh_authorized_keys:
  - ssh-rsa XXX
  
# users:

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General

• Power up the printer, install cartridges
• Settings -> Wi-Fi -> Setup-Wizard to connect printer to your network
• Settings -> Wi-Fi -> TCP/IP, note IP address (mine is 192.168.1.8)
• check if printer is reachable on the network: ping 192.168.1.8
• create new user "lp" in group "lp": sudo useradd -s /bin/false -g lp lp

Install printer

• install driver from AUR: yaourt brother-dcpj4120dw

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All of this should go into a directory that is available via HTTP and NFS. In variables.ipxe you can provide the HTTP root and NFS root paths, which are used later. Also there are some variables to set the default iscsi root (without the last part after the colon) and the initiator iqn. These are used to auto-fill the iscsi menu options.

You should tell iPXE to boot bootstrap.ipxe.

The bootstrap process reads a bunch of files and sets a bunch of variables. Of importance, it will read the file macs/XXXXXXX.ipxe