$ echo 'console=serial0,115200 root=/dev/ram0 rw ip=dhcp rootwait cloud-init=disabled apparmor=0' > /var/tftpboot/cmdline.txt

$ tar -zxvf t527_tina5.0_aiot_sdk.repo.tar.gz
$ repo sync -l

$ cd target
$ rm -rf a527
$ git clone --depth 1 --branch target-a527 git@github.com:radxa/allwinner-target.git a527
$ cd ../device/config/chips
$ rm -rf a527
$ git clone --depth 1 --branch device-a527 git@github.com:radxa/allwinner-device.git a527
$ cd ../../../
$ rm -rf bsp
$ git clone --depth 1 --branch product-t527-linux git@github.com:radxa/allwinner-bsp.git bsp
$ cd kernel
$ rm -rf linux-5.15
$ git clone --depth 1 --branch allwinner-aiot-linux-5.15 git@github.com:radxa/kernel.git linux-5.15
$ cd ../brandy/brandy-2.0
$ rm -rf u-boot-2018
$ git clone --depth 1 --branch allwinner-aiot-v2018.07 git@github.com:radxa/u-boot.git u-boot-2018

$ cat quick.sh.diff
735c735
< if [ ! -f $1 ] && [ $1 = "build_help" ] ; then
---
> if [ ! -f $1 ] && [ $1 == "build_help" ] ; then

$ source build/envsetup.sh
NOTE: The SDK(/home/argon/workspace/radxa) was successfully loaded

...

$ sudo dpkg --add-architecture i386
$ sudo apt install libc6-i386 libz1:i386
$ sudo apt-get install libc6:i386 libstdc++6:i386 zlib1g:i386
$ export PATH=$PATH:$(pwd)/brandy/arisc/ar100s/tools/or32-elf-gcc/toolchain/bin

$ ./build.sh config
...

You read time left 8 seconds....
I have already read, understood and accepted the above terms? [Y/N]Y
You select Yes, Build continue....
========ACTION List: mk_config ;========
options :
All available platform:
   0. android
   1. linux
Choice [android]: 1
All available linux_dev:
   0. bsp
   1. dragonboard
   2. buildroot
   3. debian
Choice [bsp]: 3
All available kern_name:
   0. linux-5.10
   1. linux-5.15
Choice [linux-5.10]: 1
All available ic:
   0. a523
   1. a527
   2. t527
Choice [a523]: 1
All available board:
   0. cubie_a5e
   1. d10_linux_aiot
   2. demo_linux_aiot
   3. pro2_linux_aiot
Choice [cubie_a5e]: 0
All available flash:
   0. default
   1. nor
Choice [default]: 0
cat: /home/argon/workspace/radxa_blog/debian/.config: No such file or directory
All available rootfs files:
   0. linaro-bullseye-gnome-arm64.tar.gz
   1. linaro-bullseye-lite-arm64.tar.gz
   2. linaro-bullseye-lxde-arm64.tar.gz
   3. linaro-bullseye-xfce-arm64.tar.gz
Choice [linaro-bullseye-gnome-arm64.tar.gz]: 1

...

General setup  --->
    (-cubie-A5E-giteki) Local version - append to kernel release

Device Drivers  --->
  Network device support  --->
    [ ] Wireless LAN  --->

Networking support  --->
   < > Bluetooth subsystem support  ---

File systems  --->
  Network File Systems  --->
    <*> NFS client support
    <*>   NFS client support for NFS version 2
    <*>   NFS client support for NFS version 3
    <*> NFS server support
    -*-   NFS server support for NFS version 3
    [*]   NFS server support for NFS version 4

Device Drivers  --->
  Block devices  --->
    <*> Loopback device support

$ cat >> /etc/apt/sources.list
deb http://deb.debian.org/debian/ stable main contrib non-free
deb http://deb.debian.org/debian/ stable-updates main contrib non-free
deb http://security.debian.org/debian-security stable-security main contrib non-free

$ echo mochi > /etc/hostname

$ cat > /etc/resolv.conf
nameserver 8.8.8.8
nameserver 8.8.4.4

$ cat > environment
USERNAME=argon
GROUPNAME=nebarinet
USER_ID=501
GROUP_ID=6809
GITHUB_ID=ar90n

$ cat > network/interfaces.d/eth0.conf
auto eth0
iface eth0 inet static
    address 10.0.1.1
    netmask 255.255.255.0
$ cat > network/interfaces.d/eth1.conf
auto eth1
iface eth1 inet dhcp

$ cat > sysctl.conf
net.ipv4.ip_forward=1

#!/bin/bash
# /etc/config.sh - 3-stage init script for direct partitioning and user setup

export DEBIAN_FRONTEND=noninteractive

STAGE_FILE="/etc/config-stage"
ENV="/etc/environment"
[ -f "$ENV" ] && source "$ENV"

DISK="/dev/nvme0n1"
MOUNT_BASE="/mnt/ssd"

# === Stage 1: Partition, format, and copy from SD ===
if [ ! -f "$STAGE_FILE" ]; then
  echo "[Stage 1] Partitioning and copying rootfs..."

  # Disable services
  systemctl mask wpa_supplicant.service
  systemctl stop hostapd.service
  systemctl disable hostapd.service
  systemctl stop bluetooth.target
  systemctl disable bluetooth.target
  systemctl stop wpa_supplicant-nl80211@.service
  systemctl disable wpa_supplicant-nl80211@.service
  systemctl stop wpa_supplicant-wired@.service
  systemctl disable wpa_supplicant-wired@.service
  systemctl stop wpa_supplicant@.service
  systemctl disable wpa_supplicant@.service
  systemctl stop dbus-fi.w1.wpa_supplicant1.service
  systemctl disable dbus-fi.w1.wpa_supplicant1.service
  systemctl stop NetworkManager
  systemctl disable NetworkManager

  # Install packages
  ntpdate pool.ntp.org
  dpkg --configure -a || true
  apt --fix-broken install -y || true
  apt-get update
  apt-get install -y rsync

  # Uninstall packages
  apt-get purge -y x11-common hostapd wpasupplicant bluez pulseaudio

  # Partition the disk (swap, home, usr, var)
  wipefs -a $DISK
  parted -s $DISK mklabel gpt
  parted -s $DISK mkpart primary linux-swap 1MiB 4097MiB
  parted -s $DISK mkpart primary ext4 4097MiB 20481MiB     # home
  parted -s $DISK mkpart primary ext4 20481MiB 36865MiB    # usr
  parted -s $DISK mkpart primary ext4 36865MiB 100%

  # Wait for partitions to settle
  sleep 2
  partprobe
  sleep 1

  mkswap ${DISK}p1
  mkfs.ext4 -F ${DISK}p2  # home
  mkfs.ext4 -F ${DISK}p3  # usr
  mkfs.ext4 -F ${DISK}p4  # var

  mkdir -p $MOUNT_BASE/home $MOUNT_BASE/usr $MOUNT_BASE/var
  mount ${DISK}p2 $MOUNT_BASE/home
  rsync -aAX /home/ $MOUNT_BASE/home/ || exit 0
  umount $MOUNT_BASE/home

  mount ${DISK}p3 $MOUNT_BASE/usr
  rsync -aAX /usr/ $MOUNT_BASE/usr/ || exit 0
  umount $MOUNT_BASE/usr

  mount ${DISK}p4 $MOUNT_BASE/var
  rsync -aAX /var/ $MOUNT_BASE/var/ || exit 0
  umount $MOUNT_BASE/var

  echo "UUID=$(blkid -s UUID -o value ${DISK}p1) none swap sw 0 0" >> /etc/fstab
  echo "UUID=$(blkid -s UUID -o value ${DISK}p2) /home ext4 defaults 0 2" >> /etc/fstab
  echo "UUID=$(blkid -s UUID -o value ${DISK}p3) /usr  ext4 defaults 0 2" >> /etc/fstab
  echo "UUID=$(blkid -s UUID -o value ${DISK}p4) /var  ext4 defaults 0 2" >> /etc/fstab

  echo "stage2" > "$STAGE_FILE"
  sync
  reboot
  exit 0
fi

# === Stage 2: Install base packages and create user ===
if grep -q "stage2" "$STAGE_FILE"; then
  echo "[Stage 2] Installing base packages and creating user..."

  apt install -y avahi-daemon avahi-utils zsh chrony curl gnupg ca-certificates lsb-release
  systemctl enable avahi-daemon
  systemctl disable avahi-daemon.socket
  cp /lib/systemd/system/avahi-daemon.service /etc/systemd/system/avahi-daemon.service

  if [ -n "$USERNAME" ] && [ -n "$GROUPNAME" ] && [ -n "$USER_ID" ] && [ -n "$GROUP_ID" ]; then
    groupadd -g "$GROUP_ID" "$GROUPNAME"
    useradd -m -u "$USER_ID" -g "$GROUP_ID" -s /usr/bin/zsh "$USERNAME"
    echo "$USERNAME:$USERNAME" | chpasswd
    usermod -aG sudo "$USERNAME"

    mkdir -p "/home/$USERNAME/.ssh"
    if [ -n "$GITHUB_ID" ]; then
      curl -sL "https://github.com/$GITHUB_ID.keys" > "/home/$USERNAME/.ssh/authorized_keys"
      chown "$USERNAME:$GROUPNAME" "/home/$USERNAME/.ssh/authorized_keys"
      chmod 600 "/home/$USERNAME/.ssh/authorized_keys"
    fi
    chown -R "$USERNAME:$GROUPNAME" "/home/$USERNAME/.ssh"
  fi

  userdel -r guest

  timedatectl set-timezone Asia/Tokyo

  echo "stage3" > "$STAGE_FILE"
  reboot
  exit 0
fi

# === Stage 3: Install Docker CE and finalize user setup ===
if grep -q "stage3" "$STAGE_FILE"; then
  echo "[Stage 3] Installing Docker CE..."

  install -m 0755 -d /etc/apt/keyrings
  curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg
  chmod a+r /etc/apt/keyrings/docker.gpg

  echo \
    "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian \
    $(lsb_release -cs) stable" | \
    tee /etc/apt/sources.list.d/docker.list > /dev/null

  apt update
  apt install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
  systemctl enable docker

  if [ -n "$USERNAME" ]; then
    usermod -aG docker "$USERNAME"
  fi

  echo "cleanup" > "$STAGE_FILE"
  reboot
  exit 0
fi

# === Cleanup state: remove self and rc.local entry ===
if grep -q "cleanup" "$STAGE_FILE"; then
  echo "[Stage Cleanup] Removing config.sh and rc.local entry"
  rm -f /etc/config.sh
  sed -i '/\/etc\/config.sh/d' /etc/rc.local
  rm -f "$STAGE_FILE"
  exit 0
fi

$ ./buils.sh
$ ./buils.sh kernel
$ ./buils.sh pack

template<TaskCallable F>
class ScheduledTask
{
private:
  async_at_time_worker_t worker;
  F                      callback;
  unsigned const         interval;

public:
  ScheduledTask(unsigned interval, F&& callback)
    : callback(std::forward<F>(callback))
    , interval(interval)
  {
    worker = { .do_work =
                 [](async_context_t* context, async_at_time_worker_t* worker)
               {
                 auto* self = reinterpret_cast<ScheduledTask*>(worker->user_data);
                 self->callback();
                 async_context_add_at_time_worker_in_ms(context, worker, self->interval);
               },
               .user_data = reinterpret_cast<void*>(this) };
  }

  auto& get_native_worker() { return worker; }
};

template<typename F>
concept TaskCallable = requires(F f) {
  { f() } -> std::same_as<void>;
};

template<ScheduledTaskInterface... Tasks>
class TaskRunner
{
private:
  async_context_poll_t context;
  std::tuple<Tasks...> tasks;

public:
  TaskRunner(Tasks&&... args)
    : tasks(std::make_tuple(std::forward<Tasks>(args)...))
  {
    async_context_poll_init_with_defaults(&context);

    std::apply(
      [this](auto&... task)
      { (async_context_add_at_time_worker_in_ms(&context.core, &task.get_native_worker(), 0), ...); },
      tasks
    );
  }

  void poll() { async_context_poll(&context.core); }
};

template<typename T>
concept ScheduledTaskInterface = requires(T t) {
  { t.get_native_worker() } -> std::same_as<async_at_time_worker_t&>;
};

  TaskRunner runner(std::move(task));
  runner.poll();

{
    "name": "python3",
    "image": "mcr.microsoft.com/devcontainers/python:3.10",
    "features": {
            "ghcr.io/devcontainers/features/nvidia-cuda:1": {
                "installCudnnDev": true,
                "installToolkit": true,
                "cudaVersion": "12.2",
                "cudnnVersion": "8.9.5.29"
            }
    },
    "runArgs": [
        "--gpus",
        "all"
    ],
    "hostRequirements": {
        "gpu": "optional"
    },
    "remoteEnv": {
        "PATH": "${containerEnv:PATH}:/usr/local/cuda/bin"
    },
    "remoteUser": "root"
}

$ find .
.
./.devcontainer
./.devcontainer/devcontainer.json

$ devcontainer up --workspace-folder .
[1 ms] @devcontainers/cli 0.51.3. Node.js v16.20.0. linux 6.2.0-33-generic x64.
{"outcome":"success","containerId":"1619d2fb2382a658276da2775602097b69c1157a65938485089f8ffa2c643e3e","remoteUser":"root","remoteWorkspaceFolder":"/workspaces/lab/sandbox/nvidia_cuda_devcontainer"}

$ devcontainer exec  --workspace-folder .  nvidia-smi
Sat Sep 30 12:57:23 2023
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 525.125.06   Driver Version: 525.125.06   CUDA Version: 12.0     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  NVIDIA GeForce ...  Off  | 00000000:06:00.0 Off |                  N/A |
| 40%   29C    P8    N/A /  75W |      1MiB /  4096MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
|   1  NVIDIA GeForce ...  Off  | 00000000:0A:00.0 Off |                  N/A |
|  0%   34C    P8    14W / 170W |      1MiB / 12288MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|  No running processes found                                                 |
+-----------------------------------------------------------------------------+

{
        "name": "poetry3-poetry-pyenv",
        "build": {
                "dockerfile": "Dockerfile"
        },

        // 👇 Features to add to the Dev Container. More info: https://containers.dev/implementors/features.
        // "features": {},

        // 👇 Use 'forwardPorts' to make a list of ports inside the container available locally.
        // "forwardPorts": [],

        // 👇 Use 'postCreateCommand' to run commands after the container is created.
        // "postCreateCommand": "",

        // 👇 Configure tool-specific properties.
        "customizations": {
        "vscode": {
            "extensions":["ms-python.python", "njpwerner.autodocstring"]
            }
                },
                "features": {
                        "ghcr.io/devcontainers/features/nvidia-cuda:1": {
                                "installCudnnDev": true,
                                "installToolkit": true,
                                "cudaVersion": "12.2",
                                "cudnnVersion": "8.9.5.29"
                        }
                }

        // 👇 Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
        // "remoteUser": "root"
}

29,30c29,36
<               }
<
---
>               },
>       "runArgs": [
>               "--gpus",
>               "all"
>       ],
>       "remoteEnv": {
>               "PATH": "${containerEnv:PATH}:/usr/local/cuda/bin"
>       },
32c38
<       // "remoteUser": "root"
---
>       "remoteUser": "root"

$ poetry init -q
$ poetry source add torch_cu118 --priority=explicit https://download.pytorch.org/whl/cu118
Adding source with name torch_cu118.
$ poetry add torch torchvision --source torch_cu118
Creating virtualenv nvidia-cuda-demo-4E4T6yr2-py3.10 in /root/.cache/pypoetry/virtualenvs
Using version ^2.0.1+cu118 for torch
Using version ^0.15.2+cu118 for torchvision

Updating dependencies

...


  • Installing numpy (1.25.2)
  • Installing pillow (10.0.1)
  • Installing requests (2.31.0)
  • Installing torch (2.0.1+cu118)
  • Installing torchvision (0.15.2+cu118)

Writing lock file
$ curl -L -O https://raw.githubusercontent.com/pytorch/examples/main/mnist/main.py
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  5644  100  5644    0     0  14481      0 --:--:-- --:--:-- --:--:-- 14471
$ poetry run python main.py
Downloading http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz
Downloading http://yann.lecun.com/exdb/mnist/train-images-idx3-ubyte.gz to ../data/MNIST/raw/train-images-idx3-ubyte.gz
100.0%
Extracting ../data/MNIST/raw/train-images-idx3-ubyte.gz to ../data/MNIST/raw

...

Train Epoch: 14 [58240/60000 (97%)]     Loss: 0.014492
Train Epoch: 14 [58880/60000 (98%)]     Loss: 0.004552
Train Epoch: 14 [59520/60000 (99%)]     Loss: 0.001017

Test set: Average loss: 0.0252, Accuracy: 9924/10000 (99%)

$ nvidia-smi
Sat Sep 30 13:57:07 2023
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 525.125.06   Driver Version: 525.125.06   CUDA Version: 12.0     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|                               |                      |               MIG M. |
|===============================+======================+======================|
|   0  NVIDIA GeForce ...  Off  | 00000000:06:00.0 Off |                  N/A |
| 40%   29C    P8    N/A /  75W |      3MiB /  4096MiB |      0%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+
|   1  NVIDIA GeForce ...  Off  | 00000000:0A:00.0 Off |                  N/A |
|  0%   42C    P2    54W / 170W |   1905MiB / 12288MiB |     24%      Default |
|                               |                      |                  N/A |
+-------------------------------+----------------------+----------------------+

+-----------------------------------------------------------------------------+
| Processes:                                                                  |
|  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
|        ID   ID                                                   Usage      |
|=============================================================================|
|    1   N/A  N/A     77582      C   ...E4T6yr2-py3.10/bin/python     1902MiB |
+-----------------------------------------------------------------------------+

const std = @import("std");

const Animal = struct {
    const Self = @This();
    ptr: *const anyopaque,
    barkFn: *const fn (self: *const anyopaque) []const u8,

    pub fn bark(self: Self) []const u8 {
        return self.barkFn(self.ptr);
    }
};

pub const Dog = struct {
    const Self = @This();

    buffer: [64]u8,
    len: usize,

    pub fn init(name: []const u8) !Dog {
        const dog = blk: {
            var dog = Self{
                .buffer = undefined,
                .len = 0,
            };

            const s = try std.fmt.bufPrint(&dog.buffer, "{s} - {s}", .{ name, "wan wan" });
            dog.len = s.len;
            break :blk dog;
        };

        return dog;
    }

    pub fn interface(self: *const Self) Animal {
        return .{
            .ptr = self,
            .barkFn = Dog.bark,
        };
    }

    pub fn bark(ctx: *const anyopaque) []const u8 {
        const self: *const Self = @ptrCast(@alignCast(@constCast(ctx)));
        return self.buffer[0..self.len];
    }
};

pub const Cat = struct {
    const Self = @This();

    buffer: [64]u8,
    len: usize,

    pub fn init(name: []const u8) !Cat {
        const cat = blk: {
            var cat = Self{ .buffer = undefined, .len = 0 };

            const s = try std.fmt.bufPrint(&cat.buffer, "{s} - {s}", .{ name, "nyan nyan" });
            cat.len = s.len;
            break :blk cat;
        };

        return cat;
    }

    pub fn interface(self: *const Self) Animal {
        return .{
            .ptr = self,
            .barkFn = Cat.bark,
        };
    }

    pub fn bark(ctx: *const anyopaque) []const u8 {
        const self: *Self = @ptrCast(@alignCast(@constCast(ctx)));
        return self.buffer[0..self.len];
    }
};

test "fat_ptr" {
    const dog = try Dog.init("pochi");
    const cat = try Cat.init("tama");
    const animals = [_]Animal{
        dog.interface(),
        cat.interface(),
    };

    try std.testing.expectEqualStrings("pochi - wan wan", animals[0].bark());
    try std.testing.expectEqualStrings("tama - nyan nyan", animals[1].bark());
}

const std = @import("std");

const Animal = struct {
    const Self = @This();

    barkFn: fn (self: *const @This()) []const u8,

    pub fn init(comptime barkFn: fn (self: *const @This()) []const u8) Animal {
        return .{ .barkFn = barkFn };
    }

    pub fn bark(comptime self: *const Self) []const u8 {
        return self.barkFn(self);
    }
};

pub const Dog = struct {
    const Self = @This();

    animal: Animal,
    buffer: [64]u8,
    len: usize,

    pub fn init(comptime name: []const u8) !Dog {
        const dog = blk: {
            var dog = Self{
                .animal = Animal.init(Dog.bark),
                .buffer = undefined,
                .len = 0,
            };

            const s = try std.fmt.bufPrint(&dog.buffer, "{s} - {s}", .{ name, "wan wan" });
            dog.len = s.len;
            break :blk dog;
        };

        return dog;
    }

    pub fn interface(comptime self: *const Self) *const Animal {
        return &self.animal;
    }

    pub fn bark(comptime animal: *const Animal) []const u8 {
        const self = @fieldParentPtr(Self, "animal", animal);
        return self.buffer[0..self.len];
    }
};

pub const Cat = struct {
    const Self = @This();

    animal: Animal,
    buffer: [64]u8,
    len: usize,

    pub fn init(comptime name: []const u8) !Cat {
        const cat = blk: {
            var cat = Self{
                .animal = Animal.init(Cat.bark),
                .buffer = undefined,
                .len = 0,
            };

            const s = try std.fmt.bufPrint(&cat.buffer, "{s} - {s}", .{ name, "nyan nyan" });
            cat.len = s.len;
            break :blk cat;
        };

        return cat;
    }

    pub fn interface(comptime self: *const Self) *const Animal {
        return &self.animal;
    }

    pub fn bark(comptime animal: *const Animal) []const u8 {
        const self = @fieldParentPtr(Self, "animal", animal);
        return self.buffer[0..self.len];
    }
};

test "field_parent_ptr" {
    const dog = try Dog.init("pochi");
    const cat = try Cat.init("tama");
    const animals = [_]*const Animal{
        dog.interface(),
        cat.interface(),
    };

    try std.testing.expectEqualStrings("pochi - wan wan", animals[0].bark());
    try std.testing.expectEqualStrings("tama - nyan nyan", animals[1].bark());
}

...

2022-11-02 01:18:22,845 - octoprint.util.connectivity.connectivity_checker - INFO - Resolving octoprint.org is working
2022-11-02 01:18:22,846 - octoprint.plugin.core - INFO - Loading plugins from /Users/argon/workspace/OctoPrint/src/octoprint/plugins, /Users/argon/Library/Application Support/OctoPrint/plugins and installed plugin packages...
2022-11-02 01:18:23,148 - octoprint.plugin.core - INFO - Plugin Pi Support Plugin (2022.6.13) did not pass check, not loading.

...