nix upgrade-nix
upgrade Nix to the latest stable version
- Provided by: nix-bin (Version: 2.26.3+dfsg-1ubuntu4)
- Source: nix
- Report a bug
Warning
This program is
experimental
and its interface is subject to change.
Synopsis
nix upgrade-nix [option…]
Examples
- Upgrade Nix to the stable version declared in Nixpkgs:
# nix upgrade-nix
- Upgrade Nix in a specific profile:
# nix upgrade-nix --profile ~alice/.local/state/nix/profiles/profile
Description
This command upgrades Nix to the stable version.
By default, the latest stable version is defined by Nixpkgs, in nix-fallback-paths.nix and updated manually. It may not always be the latest tagged release.
By default, it locates the directory containing the nix binary in the $PATH environment variable. If that directory is a Nix profile, it will upgrade the nix package in that profile to the latest stable binary release.
You cannot use this command to upgrade Nix in the system profile of a NixOS system (that is, if nix is found in /run/current-system).
Options
- Show what this command would do without doing it.
- The URL of the file that contains the store paths of the latest Nix release.
- --profile / -p profile-dir
- The path to the Nix profile to upgrade.
Logging-related options
- Set the logging verbosity level to ‘debug’.
- --log-format format
- Set the format of log output; one of raw, internal-json, bar or bar-with-logs.
- --print-build-logs / -L
- Print full build logs on standard error.
- Decrease the logging verbosity level.
- --verbose / -v
- Increase the logging verbosity level.
Miscellaneous global options
- Show usage information.
- Disable substituters and consider all previously downloaded files up-to-date.
- --option name value
- Set the Nix configuration setting name to value (overriding nix.conf).
- Consider all previously downloaded files out-of-date.
- Show version information.
Note
See man nix.conf for overriding configuration settings with command line flags.