Document how to use

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Graham Christensen 2020-06-08 10:02:39 -04:00
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@ -18,6 +18,17 @@ Also, the future should include tests in this repo.
netboot image in just 12 seconds, and the initrd is not rebuilt.
## How to Use
First set up recursive nix on your builder. Then:
```
$ nix-build '<nixpkgs/nixos>' -I nixos-config=./size-test/base.nix -A config.system.build.ipxeBootDir
```
and boot off of `./result/netboot.ipxe`. The initial build may take
a few minutes, but subsequent builds will only take a few seconds.
## Setting up recursive nix
Setting up recursive Nix requires support on the build machine: