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 >
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