ext4-modules-3.2.0-4-mx5-di software package provides EXT4 filesystem support, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install ext4-modules-3.2.0-4-mx5-di
ext4-modules-3.2.0-4-mx5-di is installed in your system.
Make ensure the ext4-modules-3.2.0-4-mx5-di package were installed using the commands given below,
$ sudo dpkg-query -l | grep ext4-modules-3.2.0-4-mx5-di *
You will get with ext4-modules-3.2.0-4-mx5-di package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | debian-installer udeb packages |
| Package | ext4-modules-3.2.0-4-mx5-di |
| Version | 3.2.78-1 |
| Description | EXT4 filesystem support |
| Sub Section | Debian-installer |