Pigs: create ext4 page

2025-05-24T19:36:13Z

create ext4 page

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Ext4 is a widely used journaling [[filesystems|filesystem]] for Linux.

== Usage ==

In NixOS, Ext4 can be specified when formatting partitions during installation. For example:

<syntaxhighlight lang="console">
# mkfs.ext4 /dev/sdX1
</syntaxhighlight>

And configured in your system configuration like so:

{{file|/etc/nixos/configuration.nix|nix|
<nowiki>
fileSystems."/".device = "/dev/disk/by-uuid/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
fileSystems."/".fsType = "ext4";
</nowiki>
}}

Replace the UUID or device path with your actual partition identifier.

== Tools ==

Some common tools that are installed by default on NixOS for working with the Ext4 filesystem as part of the {{nixos:package|e2fsprogs}} package:

* <code>e2fsck</code>: check and repair the file system
* <code>tune2fs</code>: adjust tunable file system parameters
* <code>resize2fs</code>: file system resizer

[[Category:Filesystem]]

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