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Diffstat (limited to 'doc/using/configuration.chapter.md')
| -rw-r--r-- | doc/using/configuration.chapter.md | 29 |
1 files changed, 12 insertions, 17 deletions
diff --git a/doc/using/configuration.chapter.md b/doc/using/configuration.chapter.md index 252d255de829d..05a8fa5517cc3 100644 --- a/doc/using/configuration.chapter.md +++ b/doc/using/configuration.chapter.md @@ -1,6 +1,7 @@ # Global configuration {#chap-packageconfig} -Nix comes with certain defaults about what packages can and cannot be installed, based on a package's metadata. By default, Nix will prevent installation if any of the following criteria are true: +Nix comes with certain defaults about which packages can and cannot be installed, based on a package's metadata. +By default, Nix will prevent installation if any of the following criteria are true: - The package is thought to be broken, and has had its `meta.broken` set to `true`. @@ -10,23 +11,14 @@ Nix comes with certain defaults about what packages can and cannot be installed, - The package has known security vulnerabilities but has not or can not be updated for some reason, and a list of issues has been entered in to the package's `meta.knownVulnerabilities`. -Note that all this is checked during evaluation already, and the check includes any package that is evaluated. In particular, all build-time dependencies are checked. `nix-env -qa` will (attempt to) hide any packages that would be refused. +Each of these criteria can be altered in the Nixpkgs configuration. -Each of these criteria can be altered in the nixpkgs configuration. +:::{.note} +All this is checked during evaluation already, and the check includes any package that is evaluated. +In particular, all build-time dependencies are checked. +::: -The nixpkgs configuration for a NixOS system is set in the `configuration.nix`, as in the following example: - -```nix -{ - nixpkgs.config = { - allowUnfree = true; - }; -} -``` - -However, this does not allow unfree software for individual users. Their configurations are managed separately. - -A user's nixpkgs configuration is stored in a user-specific configuration file located at `~/.config/nixpkgs/config.nix`. For example: +A user's Nixpkgs configuration is stored in a user-specific configuration file located at `~/.config/nixpkgs/config.nix`. For example: ```nix { @@ -34,7 +26,10 @@ A user's nixpkgs configuration is stored in a user-specific configuration file l } ``` -Note that we are not able to test or build unfree software on Hydra due to policy. Most unfree licenses prohibit us from either executing or distributing the software. +:::{.caution} +Unfree software is not tested or built in Nixpkgs continuous integration, and therefore not cached. +Most unfree licenses prohibit either executing or distributing the software. +::: ## Installing broken packages {#sec-allow-broken} |