These are a set of utilities built upon sysfs, a virtual file system in Linux kernel versions 2.5+ that exposes a system's device tree. The package also contains the libsysfs library.

PRoot is a user-space implementation of chroot, mount --bind, and binfmt_misc. This means that users don't need any privileges or setup to do things like using an arbitrary directory as the new root file system, making files accessible somewhere else in the file system hierarchy, or executing programs built for another CPU architecture transparently through QEMU user-mode. Also, developers can use PRoot as a generic process instrumentation engine thanks to its extension mechanism. Technically PRoot relies on ptrace, an unprivileged system-call available in the kernel Linux.

Headers of the Linux-Libre kernel.

Monitor a hardware random number generator, and supply entropy from that to the system kernel's /dev/random machinery.

GNU Linux-Libre is a free (as in freedom) variant of the Linux kernel. It has been modified to remove all non-free binary blobs. Configuration options and patches have been applied for use with MNT/Reform systems.

This package provides many of the missing pieces in GNU libc. Most notably the string functions: strlcpy(3), strlcat(3) and the *BSD sys/queue.h and sys/tree.h API's.

This package contains Advanced Linux Sound Architecture topology configuration files that can be used for specific audio hardware.

Libraw1394 is the only supported interface to the kernel side raw1394 of the Linux IEEE-1394 subsystem, which provides direct access to the connected 1394 buses to user space. Through libraw1394/raw1394, applications can directly send to and receive from other nodes without requiring a kernel driver for the protocol in question.

cpupower is a set of user-space tools that use the cpufreq feature of the Linux kernel to retrieve and control processor features related to power saving, such as frequency and voltage scaling.

The rasdaemon daemon monitors platform RAS reports from Linux kernel trace events. These trace events are logged in /sys/kernel/debug/tracing and reported through standard log mechanisms like syslog.

This package contains keytable files and keyboard utilities compatible for systems using the Linux kernel. This includes commands such as loadkeys, setfont, kbdinfo, and chvt.

x86_energy_perf_policy displays and updates energy-performance policy settings specific to Intel Architecture Processors. Settings are accessed via Model Specific Register (MSR) updates, no matter if the Linux cpufreq sub-system is enabled or not.

Nvme-cli is a utility to provide standards compliant tooling for NVM-Express drives. It was made specifically for Linux as it relies on the IOCTLs defined by the mainline kernel driver.

This package provides a driver for the XBox One S Wireless controller and some newer models when connected via Bluetooth. In addition to the included Linux kernel module, it also contains a modprobe configuration and udev rules, which need to be installed separately.

jmtpfs uses FUSE to provide access to data over MTP. Unprivileged users can mount the MTP device as a file system.

This is a file system client based on the SSH File Transfer Protocol. Since most SSH servers already support this protocol it is very easy to set up: on the server side there's nothing to do; on the client side mounting the file system is as easy as logging into the server with an SSH client.

This package provides userspace helpers for memory error detection and correction (EDAC).

Headers of the Linux-Libre kernel.

This package provides an advanced monitor of critical system resources, supervises the heartbeat of processes, records deadline transgressions, and initiates a controlled reset if needed.

F2FS, the Flash-Friendly File System, is a modern file system designed to be fast and durable on flash devices such as solid-state disks and SD cards. This package provides the userland utilities.

Tpacpi-bat is a command-line interface to control battery charging on Lenovo ThinkPad models released after 2011, starting with the xx20 series. It can query and set the thresholds at which one or both batteries will start and stop charging, inhibit charging batteries for a set period of time, or force them to discharge when they otherwise would not.

This tool merely exposes ACPI calls provided by the acpi_call Linux kernel module provided by the acpi-call-linux-module package, which must be installed and loaded separately. Only the original vendor firmware is supported.

Libcxi provides applications with a low-level interface to the Cray/HPE Cassini high-speed NIC, also known as Slingshot.

libnetfilter_log is a userspace library providing interface to packets that have been logged by the kernel packet filter. It is is part of a system that deprecates the old syslog/dmesg based packet logging. This library has been previously known as libnfnetlink_log.

1. receiving to-be-logged packets from the kernel nfnetlink_log subsystem

Iproute2 is a collection of utilities for controlling TCP/IP networking and traffic with the Linux kernel. The most important of these are ip, which configures IPv4 and IPv6, and tc for traffic control.

Most network configuration manuals still refer to ifconfig and route as the primary network configuration tools, but ifconfig is known to behave inadequately in modern network environments, and both should be deprecated.