# Page Not Found

The URL `di-23-zhang-freebsd-kai-fa-yu-she-qu-gong-xian/di-23.2-jie-freebsd-you-jian-lie-biao-ding-yue` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [28.2 FreeBSD 内核文件结构](https://book.bsdcn.org/di-28-zhang-freebsd-nei-he-jia-gou/di-28.2-jie-freebsd-nei-he-wen-jian-jie-gou.md)
- [FreeBSD 邮件列表订阅](https://book.bsdcn.org/fu-lu-i-gong-ju-yu-zi-yuan/freebsd-you-jian-lie-biao-ding-yue.md)
- [28.1 FreeBSD 源代码目录结构](https://book.bsdcn.org/di-28-zhang-freebsd-nei-he-jia-gou/di-28.1-jie-freebsd-yuan-dai-ma-mu-lu-jie-gou.md)
- [28.6 构建定制内核](https://book.bsdcn.org/di-28-zhang-freebsd-nei-he-jia-gou/di-28.6-jie-gou-jian-ding-zhi-nei-he.md)
- [2.2 FreeBSD 15 安装指南（AMD64）](https://book.bsdcn.org/di-2-zhang-freebsd-an-zhuang-ji-chu/di-2.2-jie-freebsd-15-an-zhuang-zhi-nan-amd64.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://book.bsdcn.org/di-28-zhang-freebsd-nei-he-jia-gou/di-28.2-jie-freebsd-nei-he-wen-jian-jie-gou.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://book.bsdcn.org/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://book.bsdcn.org/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/di-28-zhang-freebsd-nei-he-jia-gou/di-28.2-jie-freebsd-nei-he-wen-jian-jie-gou.md`).

You may also use `Accept: text/markdown` header for content negotiation.