> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/handbook/di-24-zhang-qi-ta-wen-jian-xi-tong/24.2.-linux-wen-jian-xi-tong.md).

# 24.2.Linux® 文件系统

FreeBSD 提供了对若干 Linux® 文件系统的内置支持。本节演示如何为受支持的 Linux® 文件系统加载支持并挂载它们。

## 24.2.1. 扩展文件系统（EXT）

从 FreeBSD 2.2 起，内核便支持扩展文件系统（EXT）系列文件系统。[ext2fs(4)](https://man.freebsd.org/cgi/man.cgi?query=ext2fs\&sektion=4\&format=html) 驱动让 FreeBSD 内核能读写 ext2、ext3 和 ext4 文件系统。

> **警告**
>
> 尚不支持日志和加密。

要访问 ext 文件系统，指定其 FreeBSD 分区名和一个已存在的挂载点，即可挂载该 ext 卷。以下示例将 **/dev/ada1s1** 挂载到 **/mnt**：

```sh
# mount -t ext2fs /dev/ada1s1 /mnt
```


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