Sky1 Linux APT Repository

Debian packages for CIX Sky1 (CD8180) boards: Radxa Orion O6/O6N, Orange Pi 6 Plus.

Usage

# Add repository key
wget -qO- https://sky1-linux.github.io/apt/key.gpg | sudo tee /usr/share/keyrings/sky1-linux.asc > /dev/null

# Add repository (LTS kernel — default)
echo "deb [signed-by=/usr/share/keyrings/sky1-linux.asc] https://sky1-linux.github.io/apt sid main non-free-firmware" | sudo tee /etc/apt/sources.list.d/sky1-linux.list

# Install
sudo apt update

# Full desktop (kernel, firmware, hardware video in Firefox/Chromium/FFmpeg/GStreamer)
sudo apt install sky1-desktop

# Or minimal (kernel + firmware only)
sudo apt install sky1-minimal

# Or individual packages
sudo apt install linux-image-sky1 sky1-firmware

Kernel Tracks

The repository has multiple components for different kernel tracks. Users opt-in by adding components to their sources.list. The main component is always required (firmware and multimedia live there).

Track	Component	Meta Package	Description
LTS	main	linux-image-sky1	Production kernel (6.18.x)
Latest	latest	linux-image-sky1-latest	Latest stable (6.19.x)
RC	rc	linux-image-sky1-rc	Release candidates (dormant until 7.0-rc1)
Next	next	linux-image-sky1-next	Bleeding-edge (Linus master)

# LTS only (default)
deb .../apt sid main non-free-firmware

# LTS + RC testing
deb .../apt sid main rc non-free-firmware

# LTS + Latest stable
deb .../apt sid main latest non-free-firmware

To switch tracks, install the track's meta package:

# Switch to RC kernel
sudo apt install linux-image-sky1-rc linux-headers-sky1-rc

# Switch back to LTS
sudo apt install linux-image-sky1 linux-headers-sky1
sudo apt autoremove  # removes old track's kernel

GPG Key

• Key ID: 48A0ABF100336ADB
• Fingerprint: 7D7E E7FC 3675 9E50 D5C2 3CB3 48A0 ABF1 0033 6ADB
• Download: key.gpg

Available Packages

Meta Packages

Package	Description
sky1-desktop	Full desktop: kernel, firmware, Firefox, Chromium, FFmpeg, GStreamer
sky1-minimal	Kernel + firmware
sky1-apt-config	APT source, signing key, and pin priority

Kernel — main (LTS)

Package	Version	Description
linux-image-sky1	6.18.9-1	Meta: latest LTS kernel image
linux-headers-sky1	6.18.9-1	Meta: latest LTS kernel headers
linux-image-6.18.9-sky1.r1	1	Linux 6.18.9 for Sky1 (108 patches)
linux-headers-6.18.9-sky1.r1	1	Kernel headers for module building

Kernel — latest

Package	Version	Description
linux-image-sky1-latest	6.19.0-1	Meta: latest stable kernel image
linux-headers-sky1-latest	6.19.0-1	Meta: latest stable kernel headers
linux-image-6.19.0-sky1-latest.r1	1	Linux 6.19 for Sky1 (109 patches)
linux-headers-6.19.0-sky1-latest.r1	1	Kernel headers for module building

Kernel — rc

RC track is dormant until v7.0-rc1.

Firmware (non-free-firmware)

Package	Version	Description
sky1-firmware	1.2.0	GPU, DSP, VPU, WiFi firmware, HDMI audio UCM2 config

Multimedia

Package	Version	Description
firefox	146.0-1+v4l2m2m.2	Firefox with V4L2-M2M hardware video decode
ffmpeg	8.0.1-2+av1v4l2.1	FFmpeg with AV1/VP9 V4L2-M2M support
chromium-sky1-config	1.0.0-1	Chromium V4L2-M2M hardware decode config
gstreamer1.0-plugins-good	1.26.9-1+av1v4l2	GStreamer with v4l2av1dec element

Note: Hardware video decoding uses V4L2-M2M directly. Chromium uses unmodified Debian packages with a config overlay.

Installer & First-Boot

Package	Version	Description
calamares-settings-sky1	1.0.3-1	Calamares installer branding and config

Source Repositories

Repository	Description
linux	Kernel source with Sky1 patches
linux-sky1	Patch series and configs for distribution
sky1-linux-build	Kernel package build scripts
sky1-firmware	Firmware packaging
chromium-sky1-config	Chromium V4L2-M2M config
firefox-sky1	Firefox V4L2-M2M patches
ffmpeg-sky1	FFmpeg with V4L2 patches
gstreamer-sky1	GStreamer with v4l2av1dec
plasma-setup	KDE Plasma first-boot wizard
calamares-settings-sky1	Calamares installer config