[Nix-dev] How to upgrade when Nix is too old to evaluate nixpkgs

[Domen Kožar]

Could be, not sure at what verison it was added, but I think around first
NixOS release. You could try going with 13.10 first and then upgrade to
16.03

On Thu, Jun 30, 2016 at 5:30 PM, Bjørn Forsman <bjorn.forsman at gmail.com>
wrote:

> On 30 June 2016 at 17:12, Domen Kožar <domen at dev.si> wrote:
> > Did you try running switch? It should know how to upgrade Nix.
>
> Doesn't work. "sudo nixos-rebuild build|switch" gives the same error.
> Is that feature perhaps only available in newer NixOS releases?
>
> This system isn't that important to me, but what is important is that
> (in the future) I'll be able to easily upgrade old installations.
>
> - Bjørn
>
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