SimpleOS

SimpleOS is a minimalist experimental operating system designed for learning and exploration. It is written in Assembly and C and can run in a virtual or physical environment.

Features

• Custom bootloader.
• Basic kernel with essential functionalities.
• Minimalist window system.

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Prerequisites

Make sure you have the following programs installed on your machine:

• VirtualBox (6.1 or higher)
• FergoRaw (for creating disk images)
• NASM Assembler (2.15 or higher) and GCC or LLVM Clang++
• Rufus (4.5 or higher)

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Instructions

1. Assembling the code

Run the Constructor.bat file or the commands below manually:

Bootloader:

nasm -f bin bootloader.asm -o bootloader.bin

Kernel:

nasm -f bin kernel.asm -o kernel.bin

Window system:

nasm -f bin window.asm -o window.bin

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2. Creating an image with FergoRaw

After generating the binary files, add them to FergoRaw in the correct size order:

• Sector 1: bootloader.bin (0–512 bytes)
• Sector 2: kernel.bin (0–512 bytes)
• Sector 3: window.bin (0–512 bytes)

If any file exceeds 512 bytes, adjust the sectors as indicated:

Sector 1: bootloader.bin
Sector 2: kernel.bin (first 512 bytes)
Sector 3: kernel.bin (remainder)
Sector 4: window.bin

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3. Transferring to a USB with Rufus

1. Open Rufus and select the image file created in FergoRaw.
2. Configure the USB device and start transferring.

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4. Configuring VirtualBox

Creating a VMDK file

With the USB connected, run the following commands in the terminal:

1. Navigate to the VirtualBox directory:

   cd %programfiles%\oracle\virtualbox

2. Create the VMDK file:

   VBoxManage internalcommands createrawvmdk -filename "%USERPROFILE%\.VirtualBox\usb.vmdk" -rawdisk \\.\PhysicalDrive[USB_disk_number]

Configuring the virtual machine

1. Create a new virtual machine in VirtualBox.
2. Assign the VMDK file to the storage drive.
3. Start the virtual machine to test SimpleOS.

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Contribution

Contributions are welcome! Follow these steps:

1. Fork the repository.
2. Create a branch for your changes.
3. Submit a Pull Request with a detailed description.

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Contact

If you have questions or encounter problems, please contact:

• Email: [email protected]

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