Hi,
I am getting a puzzling error when using Haskell NG on a freshly
installed system. My ~/.nixpkgs/config.nix is as follows:
------------------------------------
{ ... }:
{
packageOverrides = super:
let
self = super.pkgs;
in {
hsEnv = self.haskellngPackages.ghcWithPackages (p: with p; [
mtl
]);
};
}
------------------------------------
I run 'nix-env --install --attr nixos.pkgs.hsEnv' and get the following:
installing ‘haskell-env-ghc-7.8.4’
these derivations will be built:
/nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv
building path(s)
‘/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4’
building /nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4
created 46 symlinks in user environment
rm: cannot remove
'/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc':
Permission denied
builder for
‘/nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv’ failed
with exit code 1
error: build of
‘/nix/store/x0msnp6a060gsxzr7x06hiqf4p95bpil-haskell-env-ghc-7.8.4.drv’ failed
From what I can tell, the rm is in
pkgs/development/askell-modules/with-packages-wrapper.nix:
for prg in ghc ghci ghc-${ghc.version} ghci-${ghc.version}; do
rm -f $out/bin/$prg
makeWrapper ${ghc}/bin/$prg $out/bin/$prg ...
The permissions on my machine for that particular file and directory:
$ ls -ld
/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/{.,ghc{,-7.8.4}}
dr-xr-xr-x 1 root root 224 Dec 31 1969
/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/.
lrwxrwxrwx 1 root root 9 Dec 31 1969
/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc ->
ghc-7.8.4
-r-xr-xr-x 1 root root 492 Dec 31 1969
/nix/store/yqw7dp7x4yqcqf26bvygw9ayzypgwxap-haskell-env-ghc-7.8.4/bin/ghc-7.8.4
Any clues on how to debug this? I am wondering if it has to do with the
user/group assumed by nix-daemon, but I do not have much knowledge about
that aspect. I noticed that some of the files in /nix/store have a
group of 'nixbld', but many have the group 'root'.
Thanks,
Daniel
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