ARM64 Devices - Ubuntu.Fan

Ubuntu 26.04 ARM64 Overview

Ubuntu 26.04 provides full ARM64 (AArch64) architecture support, including both desktop and server ISO images.

Download Links

Desktop: ubuntu-26.04-desktop-arm64.iso
Server: ubuntu-26.04-live-server-arm64.iso

Download from the official Ubuntu mirror site or regional mirror sites.

Raspberry Pi

Supported Models

Model	Support Status	Notes
Raspberry Pi 5	Fully supported	Recommended
Raspberry Pi 4 (4GB/8GB)	Fully supported	4GB or more recommended
Raspberry Pi 400	Fully supported	—
Raspberry Pi 3B+	Basic support	Only 1GB RAM, limited experience

Installation Method

Download the Raspberry Pi dedicated image:


# Use Raspberry Pi Imager (recommended)
sudo apt install rpi-imager

Or write to SD card via command line:


# Confirm the SD card device name
lsblk
 
# Write the image (replace sdX with the actual device name)
sudo dd if=ubuntu-26.04-preinstalled-desktop-arm64+raspi.img of=/dev/sdX bs=4M status=progress
sync

Raspberry Pi Configuration File

The boot configuration is located on the system-boot partition of the SD card:


# Common settings in config.txt
sudo nano /boot/firmware/config.txt

Common configuration options (Pi 4 / Pi 5):


# Overclocking (Pi 5, default arm_freq=2400)
# Most Pi 5 units run stable at 2600-2700 MHz with no voltage change
arm_freq=2800
 
# Raise the GPU (VideoCore VII) frequency, default 910
gpu_freq=1000
 
# Raise voltage: Pi 4/5 use over_voltage_delta (in microvolts),
# adding an offset on top of the DVFS result; the old over_voltage no longer applies
over_voltage_delta=50000

Note

gpu_mem has no effect when the KMS display driver is in use (dtoverlay=vc4-kms-v3d, the default on Pi 4/5); video memory is allocated dynamically via CMA, so there is no need to set it.
program_usb_boot_mode is a one-time OTP setting for the Pi 3; the Pi 4/5 boot from USB/NVMe by default, and the boot order is set with rpi-eeprom-config (BOOT_ORDER), not config.txt.

Other ARM64 Devices

Supported Platforms

Apple Silicon (M1/M2/M3/M4): Run via the Asahi Linux project or UTM virtual machine
NVIDIA Jetson Series: Jetson Orin Nano/NX supports Ubuntu 26.04 server edition
Rockchip RK3588: Multiple development boards supported, such as Orange Pi 5, Rock 5B
Qualcomm: See the Snapdragon Devices topic

Generic ARM64 Installation

For ARM64 servers/workstations with UEFI firmware, you can directly use the standard ARM64 ISO:


# Create a bootable USB drive
sudo dd if=ubuntu-26.04-desktop-arm64.iso of=/dev/sdX bs=4M status=progress

ARM64 Software Compatibility

Software Repositories

Ubuntu 26.04 ARM64 uses the ports.ubuntu.com software repository:


cat /etc/apt/sources.list.d/ubuntu.sources

Most official packages have ARM64 versions. Use the following command to confirm the architecture:


dpkg --print-architecture
# Output: arm64

Containers and Virtualization


# Docker natively supports ARM64
sudo apt install docker.io
 
# Run x86_64 containers (via QEMU emulation)
sudo apt install qemu-user-static
docker run --platform linux/amd64 ubuntu:26.04 uname -m

Common Issues

Issue: Some third-party .deb packages only have amd64 versions

Solutions:

Check if there is an ARM64 version or alternative software
Use the Flatpak/Snap version (if ARM64 support is available)
Build from source

Issue: Performance tuning


# Check CPU frequency scaling governor
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
 
# Set to performance mode
echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor