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| Line 164: |
Line 164: |
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| Only the Quad model has been tested, but the others should work as well with the same U-Boot binary. | | Only the Quad model has been tested, but the others should work as well with the same U-Boot binary. |
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| === Toshiba AC100 ===
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| The Toshiba AC100 used to ship with Android 2, the fastboot bootloader and a custom partition table format. Nowadays, you can install U-boot on it. It is advisable to make a back-up (documented elsewhere; you'll need nvflash as documented below).
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| In order to modify the operating system, you need to connect the AC100 with a mini-usb cable to an Intel system we'll call the host. On the host, build the nvflash tool:
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|
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| <syntaxhighlight lang=nix>
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| pkgs.stdenv.mkDerivation {
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| name = "tegra-driver-package";
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| version = "r16.5.0";
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| src = pkgs.fetchurl {
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| url = http://developer.download.nvidia.com/mobile/tegra/l4t/r16.5.0/ventana_release_armhf/Tegra20_Linux_R16.5_armhf.tbz2;
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| sha256 = "11qmqj0yillwfapzcfjr4px4z8l7zkh0v3xrfpr9riff54xsidq2";
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| };
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| configurePhase = "";
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| buildPhase = "";
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| checkPhase = "";
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| installPhase = ''
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| mkdir $out
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| cp -r * $out/
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| '';
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| }
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| </syntaxhighlight>
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| Build the nvflash tool and follow the instructions for installing U-boot starting with the getbct.sh step at https://paz00.ru/index.php/Migrate_to_U-Boot#With_prebuilt_sosuboot-tegra_archive_or_sdcard_image_.28PC_not_required.29
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| When U-boot is installed, proceed with the sd-image-armv7l-linux.img image from https://www.cs.helsinki.fi/u/tmtynkky/nixos-arm/installer/ and follow the general NixOS installation instructions. If the first installation attempt fails, you will need to use the U-boot command line to select an alternative installation medium, using something like (please correct):
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|
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| <syntaxhighlight>
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| setenv boot_targets=usb0
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| run distro_boot
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| </syntaxhighlight>
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| == Enable UART == | | == Enable UART == |