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Install/Creating Filesystems/zh-cn
安装指南：创建文件系统
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本节同时覆盖 BIOS 和 UEFI 安装两种方法。不要跳过！
Before your newly-created partitions can be used, the block devices that were created in the previous step need to be initialized with filesystem metadata. This process is known as creating a filesystem on the block devices. After filesystems are created on the block devices, they can be mounted and used to store files.
Let's keep this simple. Are you using legacy MBR partitions? If so, let's create an ext2 filesystem on /dev/sda1:
root # mkfs.ext2 /dev/sda1
如果在 UEFI 中使用 GPT 分区，或者为 Raspberry Pi 安装，需要在第一个分区上创建一个 vfat 文件系统。在 Raspberry Pi 的情况下，这将是 mmcblk0p1：
root # mkfs.vfat -F 32 /dev/sda1
现在，创建一个交换分区。Funtoo Linux 会将此分区用于基于磁盘的虚拟内存空间。
由于交换分区不是用来存储文件的，因此无需对于交换分区创建文件系统。但是需要使用 mkswap 将其初始化。由于之后的安装过程中需要交换分区，所以要运行 swapon 命令使交换分区立即在 Live CD 环境生效：
root # mkswap /dev/sda2 root # swapon /dev/sda2
根目录文件系统
Now, we need to create a root filesystem. This is where Funtoo Linux will live. We generally recommend ext4 or XFS root filesystems.
Keep in mind that some filesystems will require additional filesystem tools to be emerged prior to rebooting. Please consult the following table for more information:
| 文件系统 | 推荐作为根文件系统？ | 安装所需的额外工具 |
|---|---|---|
| ext4 | 是 | 无 |
| XFS | 是 | sys-fs/xfsprogs |
| reiserfs | 是——可能需要启用内核支持 | sys-fs/reiserfsprogs |
| zfs | 否 - 仅限高级用户 | sys-fs/zfs |
| btrfs | 否 - 仅限高级用户 | sys-fs/btrfs-progs |
如果不确定，就选择 ext4。下面是如何创建一个根目录 ext4 文件系统：
root # mkfs.ext4 /dev/sda3
……这里是如何创建一个 XFS 根目录文件系统，如果你喜欢使用 XFS 而不是 ext4：
root # mkfs.xfs /dev/sda3
你的文件系统（包括交换分区）现在已经初始化了，这样就可以挂载他们（附加到现有的目录层次结构中）并且用来存储文件。我们已经准备好在崭新的分区上安装 Funtoo Linux。
Additional Filesystems
这对树莓派系统非常有用！
You may want to create additional filesystems for various parts of your Funtoo filesystem tree. It is not uncommon to place /home or /var on separate filesystems.
For Raspberry Pi, you may not have a lot of spare room on the card depending on the capacity of your microSD card, and it may make a lot of sense to put the entire /var filesystem on an external hard drive or solid state disk. This will not only ensure you don't run out of disk space, but can also improve performance since writes to the microSD card typically aren't that fast.
To do this, you will want to use fdisk or gdisk to create a partition on your external drive, and then use the mkfs.xfs or mkfs.ext4 commands to create a filesystem on the new partition. We will mount this new filesystem in the next step prior to extracting the stage3 tarball.
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