Installing Newt on Linux¶
You can install the latest release (1.9.0) of the newt tool from a Debian binary package (amd64). You can also download and build the latest release version of newt from source.
This page shows you how to:
Set up your computer to download Debian binary packages from the JuulLabs-OSS APT repository.
Note: The key for signing the repository has changed. If you set up your computer before release 1.1.0, you will need to download and import the public key again.
Install the latest release version of newt from a Debian binary package. You can use apt-get to install the package or manually download and install the Debian binary package.
Download, build, and install the latest release version of newt from source.
If you are installing on an amd64 platform, we recommend that you install from the binary package.
See Installing Previous Releases of Newt to install an earlier version of newt.
Note: We have tested the newt tool binary and apt-get install from the JuulLabs-OSS APT repository for Ubuntu version 1704. Earlier Ubuntu versions (for example: Ubuntu 14) may have incompatibility with the repository. You can manually download and install the Debian binary package.
Note: See Contributing to Newt or Newtmgr Tools if you want to:
Use the newt tool with the latest updates from the master branch. The master branch may be unstable and we recommend that you use the latest stable release version.
Contribute to the newt tool.
Setting Up Your Computer to use apt-get to Install the Package¶
The newt Debian packages are stored in a private APT repository on https://github.com/JuulLabs-OSS/debian-mynewt. To use apt-get, you must set up the following on your computer to retrieve packages from the repository:
Note: You only need to perform this setup once on your computer. However, if you previously downloaded and imported the public key for the JuulLabs-OSS APT repository, you will need to perform step 2 again as the key has changed.
Download the public key for the JuulLabs-OSS APT repository and import the key into the apt keychain.
Add the repository for the binary and source packages to the apt source list.
Download the public key for the JuulLabs-OSS apt repo (Note: There is a
$ wget -qO - https://raw.githubusercontent.com/JuulLabs-OSS/debian-mynewt/master/mynewt.gpg.key | sudo apt-key add -
Add the repository for the binary and source packages to the
mynewt.list apt source list file:
$ sudo tee /etc/apt/sources.list.d/mynewt.list <<EOF deb https://raw.githubusercontent.com/JuulLabs-OSS/debian-mynewt/master latest main EOF
Note: Previously the repository lived under
runtimeco/debian-mynewt, and although
updating should remain working, if it stops pulling in the latest releases, please try updating
/etc/apt/sources.list.d/mynewt.list and substitute
Update the available packages:
$ sudo apt-get update
Note: If you are not using Ubuntu version 1704, you may see the following errors. We have provided instructions on how to manually download and install the binary package.
W: Failed to fetch https://raw.githubusercontent.com/JuulLabs-OSS/debian-mynewt/master/dists/latest/main/source/Sources HttpError404
Installing the Latest Release of Newt from a Binary Package¶
You can use either apt-get to install the package, or manually download and install the Debian binary package.
Method 1: Using apt-get to Upgrade or to Install¶
Run the following commands to upgrade or install the latest version of newt:
$ sudo apt-get update $ sudo apt-get install newt
Note: If you encounter build errors (such as missing
sys/mman.h), please make sure you have a 32-bit glibc:
$ sudo apt-get install gcc-multilib
Method 2: Downloading and Installing the Debian Package Manually¶
Download and install the package manually.
$ wget https://raw.githubusercontent.com/JuulLabs-OSS/binary-releases/master/mynewt-newt-tools_1.9.0/newt_1.9.0-1_amd64.deb $ sudo dpkg -i newt_1.9.0-1_amd64.deb
See Checking the Installed Version of Newt to verify that you are using the installed version of newt.
Installing the Latest Release of Newt from a Source Package¶
If you are running Linux on a different architecture, you can build and install the latest release version of newt from source.
The newt tool is written in Go (https://golang.org/). In order to build Apache Mynewt, you must have Go 1.12 or later installed on your system. Please visit the Golang website for more information on installing Go (https://golang.org/).
Download and unpack the newt source:
$ wget -P /tmp https://github.com/apache/mynewt-newt/archive/mynewt_1_9_0_tag.tar.gz $ tar -xzf /tmp/mynewt_1_9_0_tag.tar.gz
Run the build.sh to build the newt tool.
$ cd mynewt-newt-mynewt_1_9_0_tag $ ./build.sh $ rm /tmp/mynewt_1_9_0_tag.tar.gz
You should see the
newt/newtexecutable. Move the executable to a bin directory in your PATH:
If you previously built newt from the master branch, you can move the binary to your $GOPATH/bin directory.
$ mv newt/newt $GOPATH/bin
If you are installing newt for the first time and do not have a Go workspace set up, you can move the binary to /usr/bin or a directory in your PATH:
$ mv newt/newt /usr/bin
Checking the Installed Version of Newt¶
Check which newt you are using and that the version is the latest release version.
$ which newt /usr/bin/newt $ newt version Apache Newt version: 1.9.0
Get information about newt:
$ newt Newt allows you to create your own embedded application based on the Mynewt operating system. Newt provides both build and package management in a single tool, which allows you to compose an embedded application, and set of projects, and then build the necessary artifacts from those projects. For more information on the Mynewt operating system, please visit https://mynewt.apache.org/. Please use the newt help command, and specify the name of the command you want help for, for help on how to use a specific command Usage: newt [flags] newt [command] Examples: newt newt help [<command-name>] For help on <command-name>. If not specified, print this message. Available Commands: apropos Search manual page names and descriptions build Build one or more targets clean Delete build artifacts for one or more targets create-image Add image header to target binary debug Open debugger session to target docs Project documentation generation commands help Help about any command info Show project info load Load built target to board man Browse the man-page for given argument man-build Build man pages mfg Manufacturing flash image commands new Create a new project pkg Create and manage packages in the current workspace resign-image Obsolete run build/create-image/download/debug <target> size Size of target components target Commands to create, delete, configure, and query targets test Executes unit tests for one or more packages upgrade Upgrade project dependencies vals Display valid values for the specified element type(s) version Display the Newt version number Flags: --escape Apply Windows escapes to shell commands -h, --help Help for newt commands -j, --jobs int Number of concurrent build jobs (default 4) -l, --loglevel string Log level (default "WARN") -o, --outfile string Filename to tee output to -q, --quiet Be quiet; only display error output -s, --silent Be silent; don't output anything -v, --verbose Enable verbose output when executing commands Use "newt [command] --help" for more information about a command.