I'm glad to hear it. I filed a nixpkgs issue about the link to the outdated wiki page that appeared in the error you pasted.
https://github.com/NixOS/nixpkgs/issues/23013 On 20 February 2017 at 05:41, rohit yadav <[email protected]> wrote: > > > On Sun, Feb 19, 2017 at 11:36 PM, James Cook <[email protected]> wrote: >> >> On 20 February 2017 at 04:57, rohit yadav <[email protected]> wrote: >> > >> > >> > On Sun, Feb 19, 2017 at 10:18 PM, rohit yadav <[email protected]> >> > wrote: >> >> >> >> >> >> >> >> On Sun, Feb 19, 2017 at 10:08 PM, James Cook <[email protected]> >> >> wrote: >> >>> >> >>> On 19 February 2017 at 23:51, rohit yadav <[email protected]> >> >>> wrote: >> >>> > Hi, >> >>> > >> >>> > I am trying to upgrade a nixos machine on GCE created from the old >> >>> > tempalted >> >>> > 14.12. I am unable to do so. I receive following error: >> >>> > >> >>> > [root@localhost:~]# nixos-rebuild switch >> >>> > building Nix... >> >>> > error: syntax error, unexpected $undefined, expecting '"', at >> >>> > >> >>> > >> >>> > "/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/sources.nix":52:49 >> >>> > (use ‘--show-trace’ to show detailed location information) >> >>> > error: syntax error, unexpected $undefined, expecting '"', at >> >>> > >> >>> > >> >>> > "/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/sources.nix":52:49 >> >>> > (use ‘--show-trace’ to show detailed location information) >> >>> > error: evaluation aborted with the following error message: ‘This >> >>> > version of >> >>> > Nixpkgs requires Nix >= 1.10, please upgrade! See >> >>> > >> >>> > >> >>> > https://nixos.org/wiki/How_to_update_when_Nix_is_too_old_to_evaluate_Nixpkgs’ >> >>> > error: getting status of ‘/root/@nix_x86_64_linux@’: No such file or >> >>> > directory >> >>> > warning: don't know how to get latest Nix >> >>> > building the system configuration... >> >>> > error: syntax error, unexpected $undefined, expecting '"', at >> >>> > >> >>> > >> >>> > "/nix/var/nix/profiles/per-user/root/channels/nixos/nixpkgs/lib/sources.nix":52:49 >> >>> > (use ‘--show-trace’ to show detailed location information) >> >>> > >> >>> > Note: I have already upgrade nix to 1.11 even then it continues to >> >>> > complain >> >>> > about it. >> >>> > >> >>> > Thanks, >> >>> > Rohit >> >>> >> >>> Strange... just to confirm, what does "nix-env --version" show when >> >>> you run it as root? >> >> >> >> As I mentioned earlier, the version is 1.11.6. >> >> [root@localhost:~]# nix-env --version >> >> nix-env (Nix) 1.11.6 >> > >> > I notice that nix-env in current-system/sw directory is still nix-1.8. I >> > am >> > not sure why it is not updating even though in my root environment, I >> > have >> > nix-1.11.6. Any clue, how to fix this? >> > >> > [root@localhost:/var/run/current-system/sw/bin]# nix-store -q >> > --references >> > /var/run/current-system/sw | cut -d'-' -f2- | grep nix >> > nix-1.8 >> > nixos-install >> > nixos-version >> > nixos-build-vms >> > nixos-checkout >> > nixos-option >> > nixos-rebuild >> > nixos-manpages >> > nixos-help >> > nixos-generate-config >> > nixos-container >> > >> > >> >> >> >> >> >> Thanks, >> >> Rohit >> >> >> >> >> > >> >> The instructions at >> http://lists.science.uu.nl/pipermail/nix-dev/2013-March/010874.html >> look promising, though it's from 2013, so proceed with caution. >> >> Here's what I think is happening: >> >> a) When you run nixos-rebuild, it doesn't automatically find the >> latest version of nix you installed. Instead, it uses a specific store >> path built in to the nixos-rebuild script. >> >> b) My hope is the instructions in the link above will give you a newer >> nixos-rebuild, which will in turn use a newer version of nix. >> >> c) To answer your question about nix-1.8: well, I think that's not >> exactly the problem (see (a)). But if you installed nix-1.11 using >> nix-env, it ended up under $HOME/.nix-profile. >> /var/run/current-system/sw is separate, and probably still has >> whatever software your image came with, unless you've run >> nixos-rebuild successfully since then. > > > Thanks for the reply James. Yes, I figured that out. So, I upgraded the > system step by step (using each release nixos-xx) from nixos-14.12 to > nixos-16.09. It took only few minutes once I understood the problem. I have > perfectly fine working Nixos now with latest release. >> >> >> James > > _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
