# Bootstrap  Creation Script

This script automates the process of creating a bootstrap archive for the Lynx blockchain. It generates a bootstrap.dat file from your local blockchain data and splits it into manageable chunks for easier distribution.

{% hint style="warning" %}
This is not the script to use if you are looking to download a bootstrap file to your Lynx node for faster sync. Instead, [use the extraction script](https://docs.getlynx.io/lynx-administration/bootstraps/bootstrap-extraction-script).
{% endhint %}

### Overview

The script performs the following operations:

1. Locates your Lynx installation directory
2. Validates the environment and required tools
3. Creates a bootstrap.dat file from your local blockchain
4. Compresses and splits the bootstrap file into 125MB chunks
5. Generates a manifest file with SHA256 checksums for verification

### Requirements

* Lynx Core must be installed and fully synced
* Python (for the linearize scripts)
* 2GB of free disk space for the bootstrap file creation
* Staking should be disabled to avoid Python socket errors
* Write permissions in the Lynx home directory

### Installation

To construct a backup bundle from a fully synced Lynx node, download and execute this script:

```bash
wget -O - https://raw.githubusercontent.com/getlynx/LynxBootstrap/master/archive.sh | bash
```

### Output Files

The script generates the following files:

* `YYYY-MM-DD-bootstrap.tar.gz.*` - Compressed bootstrap chunks
* `YYYY-MM-DD-manifest.txt` - SHA256 checksums for verification

### Important Notes

* Keep both the chunk files and manifest.txt for proper reassembly
* The script expects the .lynx directory to be in its default location
* The process may take considerable time depending on blockchain size
* Ensure sufficient disk space is available before running

### Technical Details

* Chunks are created at 125MB size for easier transfer
* The script uses Python's linearize tools from the Lynx Core repository
* Block height is set to (current - 100) for safety
* RPC credentials are automatically extracted from lynx.conf

### Common Issues

1. **Permission Denied**: Ensure you have write access to the Lynx directory
2. **lynx-cli not found**: Make sure Lynx Core is properly installed and running
3. **Space Issues**: Ensure sufficient disk space for bootstrap creation

### Contributing

Contributions are welcome! Please [feel free to submit a Pull Request.](https://github.com/getlynx/LynxBootstrap/pulls)

### Support

If you encounter any issues or need assistance, please:

1. Check the Common Issues section above
2. Create an issue in the GitHub repository
3. Visit the [Lynx Documentation](https://docs.getlynx.io) for more information
4. [Visit us on Discord](https://discord.gg/6jUaNeV2Uy)

### Acknowledgments

* Bitcoin Core's linearize scripts (which were adapted for Lynx)