Allwinner A20 Linux Image - Better

| Feature | Mainline Linux (6.x) | Legacy Allwinner (3.4/3.10) | |-----------------------|----------------------|------------------------------| | CPU + SMP | ✅ Full | ✅ Full | | SATA | ✅ Full | ✅ Full | | Ethernet (GMAC) | ✅ Stable | ✅ Stable | | Mali GPU (3D) | ❌ No mainline driver (panfrost not fully supporting Mali-400) | ✅ Proprietary binary blob | | CedarX video decoder | ❌ No mainline | ✅ Proprietary | | NAND controller | ✅ Through sunxi-nand | ✅ Full | | DVFS / cpufreq | ✅ Partial | ✅ Full | | Suspend/resume | ⚠️ Unstable | ✅ Working |

For 90% of users, is the definitive choice. It is a lightweight Debian or Ubuntu-based distribution optimized specifically for ARM boards. Armbian provides "ready-to-run" images with automated kernel updates. allwinner a20 linux image

Buildroot is perfect for tiny A20 images (under 50 MB). It builds a custom kernel + rootfs + bootloader all from source. | Feature | Mainline Linux (6