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3.6 Invoking guix pull

Packages are installed or upgraded to the latest version available in the distribution currently available on your local machine. To update that distribution, along with the Guix tools, you must run guix pull: the command downloads the latest Guix source code and package descriptions, and deploys it.

On completion, guix package will use packages and package versions from this just-retrieved copy of Guix. Not only that, but all the Guix commands and Scheme modules will also be taken from that latest version. New guix sub-commands added by the update also become available.

Any user can update their Guix copy using guix pull, and the effect is limited to the user who run guix pull. For instance, when user root runs guix pull, this has no effect on the version of Guix that user alice sees, and vice versa5.

The guix pull command is usually invoked with no arguments, but it supports the following options:

--verbose

Produce verbose output, writing build logs to the standard error output.

--url=url

Download the source tarball of Guix from url.

By default, the tarball is taken from its canonical address at gnu.org, for the stable branch of Guix.

With some Git servers, this can be used to deploy any version of Guix. For example, to download and deploy version 0.12.0 of Guix from the canonical Git repo:

guix pull --url=https://git.savannah.gnu.org/cgit/guix.git/snapshot/v0.12.0.tar.gz

It can also be used to deploy arbitrary Git revisions:

guix pull --url=https://git.savannah.gnu.org/cgit/guix.git/snapshot/74d862e8a.tar.gz
--bootstrap

Use the bootstrap Guile to build the latest Guix. This option is only useful to Guix developers.

In addition, guix pull supports all the common build options (see Common Build Options).


Footnotes

(5)

Under the hood, guix pull updates the ~/.config/guix/latest symbolic link to point to the latest Guix, and the guix command loads code from there. Currently, the only way to roll back an invocation of guix pull is to manually update this symlink to point to the previous Guix.


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