AirCast

SD Card Flashing Guide

Complete guide for properly flashing Raspberry Pi OS onto your SD card

Requirements

Hardware

  • MicroSD card (8GB minimum, Class 10 recommended)
  • SD card reader/adapter

Software

  • Raspberry Pi Imager
  • Administrator/sudo privileges

1. Download and Install Raspberry Pi Imager

Raspberry Pi Imager Interface
  1. Download Raspberry Pi Imager
  2. Install following your OS instructions

2. Select Your Raspberry Device

Select your raspberry deviceRaspberry Pi Imager Main Interface

3. Choose Operating System

To select the operating system, click "CHOOSE OS" and navigate through the available options:

  1. Click "Raspberry Pi OS (other)" from the main OS selection screen
  2. Look for "Raspberry Pi OS Lite (64-bit)" in the list
  3. Confirm it shows "no desktop environment" in the description
Choose Operating System Screen

After selecting "Raspberry Pi OS (other)", you'll see the following screen where you can select the Lite version:

Select Raspberry Pi OS Lite 64-bit

4. Choose Storage

Storage Selection Screen

5. Configure OS Settings

Before writing the image, click the gear icon to configure essential settings for your Raspberry Pi. This will save you time by avoiding manual configuration later.

OS Customization Options

General Settings

Start by configuring the basic settings for your device. The hostname will be used to identify your Raspberry Pi on the network.

Edit General Settings

Set Device Hostname

Enter a unique hostname for your device. This will be used to access your Raspberry Pi on the network. For example: 'raspberrypi.local'

Set Device Hostname

Configure Wireless Network

Connect your Raspberry Pi to your local network by entering your WiFi credentials:

  • SSID: Enter your WiFi network name (case-sensitive)
  • Password: Provide your WiFi network password
Wireless Network Configuration Screen

Once connected, you can access your Raspberry Pi using the hostname 'raspberrypi.local' from any device on the same network. This enables remote management without needing to connect a display or keyboard.

SSH Configuration

Enable SSH access to connect to your Raspberry Pi remotely. Choose between password authentication or public-key authentication based on your security requirements.

Enable SSH Access

Required Settings Checklist

System Configuration

  • Set hostname

    Choose a unique name for network identification

  • Enable SSH

    Required for remote access

  • Set username/password

    Choose secure credentials

Network Setup

  • Configure Wi-Fi

    Set your network credentials

  • Set locale/timezone

    Important for proper time synchronization

6. Write to SD Card

  1. Double-check all settings
  2. Click "WRITE" to begin
  3. Wait for writing process (5-10 minutes)
  4. Wait for verification (optional but recommended)
Write Complete Screen

Common Issues

Write Failed

  • • Check SD card is not write-protected
  • • Try a different USB port
  • • Verify SD card is not counterfeit
  • • Run Imager as administrator