isa-info command not found

In this troubleshooting guide we learn how to fix isa-info command not found error message

Introduction

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

isa-info: command not found

or when using sudo you get the following error message

sudo: isa-info: command not found

Solutions to isa-info: command not found

How To Fix isa-info: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu isa-info is provided by cpuinfo package.

cpuinfo is:

cpuinfo is a library to detect essential for performance optimization information about host CPU.

Features

  • Cross-platform availability:
    • Linux, Windows, macOS, Android, and iOS operating systems
    • x86, x86-64, ARM, and ARM64 architectures
  • Modern C/C++ interface
    • Thread-safe
    • No memory allocation after initialization
    • No exceptions thrown
  • Detection of supported instruction sets, up to AVX512 (x86) and ARMv8.3 extensions
  • Detection of SoC and core information:
    • Processor (SoC) name
    • Integrated GPU name (Android/iOS only)
    • Vendor, microarchitecture, and ID (MIDR on ARM, CPUID leaf 1 EAX value on x86) for each CPU core
  • Detection of cache information:
    • Cache type (instruction/data/unified), size and line size
    • Cache associativity
    • Cores and logical processors (hyper-threads) sharing the cache
  • Detection of topology information (relative between logical processors, cores, and processor packages)
  • Well-tested production-quality code:
    • 60+ mock tests based on data from real devices
    • Includes work-arounds for common bugs in hardware and OS kernels
    • Supports systems with heterogenous cores, such as big.LITTLE and Max.Med.Min
  • Permissive open-source license (Simplified BSD)

This package ships with several binary utilities.

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

sudo apt-get -y install cpuinfo

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

You can also use apt command to install cpuinfo.

sudo apt -y install cpuinfo

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

sudo aptitude install cpuinfo

Summary

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