NixOS on ARM/OLIMEX Teres-A64
| OLIMEX Teres-A64 | |
|---|---|
| The King Himself | |
| Manufacturer | OLIMEX, Ltd |
| Architecture | AArch64 |
| Bootloader | Upstream U-Boot[1] |
| Boot order | SD, eMMC |
| Maintainer | KREYREN |
Teres-1 (often referred as teres-a64) is an open-source hardware and software netbook design based on the Allwinner A64 SoC.
It can boot from SD or from the included and slow af eMMC module (insane people use only).
Status
Work In Progress..
U-boot support has been submitted on 2023-06-30.
Installation instructions
To use the generic installation image for your board, you will need to copy it verbatim to an SD card.
sudo dd if=sd-image-aarch64-linux.img of=/dev/DEVICE conv=sync status=progress
This board requires the installation of u-boot at a specific location on the storage where NixOS was written to.
sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/DEVICE bs=1024 seek=8
Partitioning
All Allwinner SoCs will try to find a boot image at sector 16 (8KB) of an SD card, connected to the first MMC controller.[3]
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MBR partition scheme
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This article or section needs expansion.
Reason: Installation instructions need to be written up to keep space for embedding the bootloader to the SPL. (Discuss in Talk:NixOS on ARM/OLIMEX Teres-A64#)
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GPT partition scheme
The Allwinner GPT Installation instruction explains how to create a GPT partition table while allowing the isntallation of u-boot at the required offset.
Serial console
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Compatibility notes
| Mainline kernel | |
|---|---|
| HDMI |
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Downstream kernel
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Reason: Find and document use of a kernel with the added capabilities. (Discuss in Talk:NixOS on ARM/OLIMEX Teres-A64#)
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USB booting with u-boot
You will need to either have mainline U-Boot installed to the eMMC or to an SD card.
Stop the boot process when prompted (by pressing a key). Then, do the following:
Hit any key to stop autoboot: 0 => setenv boot_targets usb0 => boot
This sets the boot order for this boot only. U-Boot can boot (among others) either of the NixOS sd-image or EFI iso from USB.