ibv_devinfo command not found

In this troubleshooting guide we learn how to fix ibv_devinfo command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

ibv_devinfo: command not found

or when using sudo you get the following error message

sudo: ibv_devinfo: command not found

Solutions to ibv_devinfo: command not found

How To Fix ibv_devinfo: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu ibv_devinfo is provided by ibverbs-utils package.

ibverbs-utils is:

libibverbs is a library that allows userspace processes to use RDMA “verbs” as described in the InfiniBand Architecture Specification and the RDMA Protocol Verbs Specification. iWARP ethernet NICs support RDMA over hardware-offloaded TCP/IP, while InfiniBand is a high-throughput, low-latency networking technology. InfiniBand host channel adapters (HCAs) and iWARP NICs commonly support direct hardware access from userspace (kernel bypass), and libibverbs supports this when available.

This package contains useful libibverbs1 example programs such as ibv_devinfo, which displays information about InfiniBand devices.

To fix this problem, we can install more using the command below.

sudo apt-get -y install ibverbs-utils

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install ibverbs-utils.

sudo apt -y install ibverbs-utils

Or if you have aptitude installed you can use the following command.

sudo aptitude install ibverbs-utils

Summary

In this tutorial we learn how to fix ibv_devinfo command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.