Ext2

ext2 (second extended filesystem) is Article description::an open source disk [[filesystem created for Linux, and the second version of the extended series of filesystems.]]

It is the tried and true Linux filesystem but doesn't have metadata journaling, which means that routine ext2 filesystem checks at startup time can be quite time-consuming. There is now quite a selection of newer-generation journaled filesystems that can be checked for consistency very quickly and are thus generally preferred over their non-journaled counterparts. Journaled filesystems prevent long delays when the system is booted and the filesystem happens to be in an inconsistent state.

Kernel
Activate the following kernel options for ext2 support:

Support for optional ext2 features:

Large drive support
When the system has large disks (2 TB or greater) and a 32-bit kernel is being used, the following option ( CONFIG_LBDAF ) must be enabled:

Use of ext4 filesystem driver
An alternative to the ext2 filesystem driver is using the ext4 filesystem code to access ext2 filesystems as well.

USE flags
The package contains the utilities to work with the filesystem. In Gentoo Linux is part of the system set and should be already installed on the system.

Emerge
After setting the USE flag update the system so the changes take effect:

Creation
To create an ext2 filesystem on the partition:

Please replace with the actual partition to format.

By default, 5% of available disk space is reserved for the root user. This is usually a good thing for the partition where the directory is mounted, but it may be not desirable on other partitions. To lose reserve disk space for the root user use 's  option: