Upgrade Chef Infra Client

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The following sections describe the upgrade process for Chef Infra Client. If you are also upgrading the Chef Infra Server complete that process first and then upgrade the Chef Infra Client.

Command Line Upgrades

To upgrade Chef Infra Client on a node from the command line, run the install script to install the latest Chef Infra Client release:

Linux, macOS, and Unix-based hosts:

curl -L https://chef.io/chef/install.sh | sudo bash

Windows hosts:

. { iwr -useb https://omnitruck.chef.io/install.ps1 } | iex; install

Specifying the Version to Install

The install script accepts arguments to allow installing specific versions of Chef Infra Client on systems.

Linux, macOS, and Unix-based hosts:

curl -L https://chef.io/chef/install.sh | sudo bash -s -- -v 17.9.26

Windows hosts:

. { iwr -useb https://omnitruck.chef.io/install.ps1 } | iex; install -version 17.9.26

Upgrading Multiple Hosts with Knife

The knife ssh command in Chef Workstation can be used to execute the install script on multiple Linux, macOS, and Unix-based hosts at once:

knife ssh 'name:*' 'curl -L https://chef.io/chef/install.sh | sudo bash'

Cookbook-Based Upgrade

The chef_client_updater cookbook can be used to install or upgrade Chef Infra Client package on a node.