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. James _______________________________________________ nix-dev mailing list [email protected] http://lists.science.uu.nl/mailman/listinfo/nix-dev
