[Nix-dev] symlink permission denied in builder.sh
Kirill Elagin
kirelagin at gmail.com
Tue Jun 20 11:11:32 CEST 2017
You do `chmod 777` on a bunch of files, but not on `$out/lib`, but it’s the
creation of a link in `$out/lib` that fails, and according to your output
of `ls` the `lib` directory does not have the `w` permission indeed, which
is required to create a link in it.
I am not sure how this works exactly, but it seems that `cp` removes the
`w` permission when copying, so you either have to reset this permissions
yourself or, probably simpler, `mkdir -p "$out/lib"` beforehand, in which
case `cp` will not overwrite its permissions.
On Tue, Jun 20, 2017 at 11:28 AM Nawal Husnoo <nawal at husnoo.com> wrote:
> Hi
>
> I have the following default.nix and builder.sh, copied from the acroread
> example and adapted. They are called from config.nix. I'm getting
> permission denied when I try to create a symbolic link. Any ideas?
>
> thanks
>
> Nawal
>
>
> Error:
>
> [nawal at heisenbug:~/data/nixos/user/pkgs/canon]$ nix-env -i all
> warning: there are multiple derivations named ‘all’; using the first one
> replacing old ‘all’
> installing ‘all’
> these derivations will be built:
> /nix/store/w1w639kybx0lgvdmnb9ipg0j1xvb9wlq-canon-mp250.drv
> /nix/store/bmp2ibgc82rmx14bgavd3pknwxwdp4ld-all.drv
> building path(s) ‘/nix/store/q5qyxyqrfscdv7yj6aywx9v518215wdr-canon-mp250’
> total 764K
> dr-xr-xr-x 2 nixbld1 nixbld 4.0K Jun 20 08:23 bjlib
> dr-xr-xr-x 4 nixbld1 nixbld 4.0K Jun 20 08:23 cups
> -r-xr-xr-x 1 nixbld1 nixbld 47K Jun 20 08:23 libcnbpcmcm356.so.8.0.1
> -r-xr-xr-x 1 nixbld1 nixbld 41K Jun 20 08:23 libcnbpcnclapi356.so.3.5.0
> -r-xr-xr-x 1 nixbld1 nixbld 21K Jun 20 08:23 libcnbpcnclbjcmd356.so.3.3.0
> -r-xr-xr-x 1 nixbld1 nixbld 29K Jun 20 08:23 libcnbpcnclui356.so.3.6.0
> -r-xr-xr-x 1 nixbld1 nixbld 522K Jun 20 08:23 libcnbpess356.so.3.3.3
> -r-xr-xr-x 1 nixbld1 nixbld 42K Jun 20 08:23 libcnbpo356.so.1.0.2
> -r-xr-xr-x 1 nixbld1 nixbld 38K Jun 20 08:23 libcnnet.so.1.2.0
> total 12K
> dr-xr-xr-x 2 nixbld1 nixbld 4.0K Jun 20 08:23 bin
> dr-xr-xr-x 4 nixbld1 nixbld 4.0K Jun 20 08:23 lib
> dr-xr-xr-x 7 nixbld1 nixbld 4.0K Jun 20 08:23 share
> ln: failed to create symbolic link
> '/nix/store/q5qyxyqrfscdv7yj6aywx9v518215wdr-canon-mp250/lib/libcnbpcmcm356.so':
> Permission denied
> builder for ‘/nix/store/w1w639kybx0lgvdmnb9ipg0j1xvb9wlq-canon-mp250.drv’
> failed with exit code 1
> cannot build derivation
> ‘/nix/store/bmp2ibgc82rmx14bgavd3pknwxwdp4ld-all.drv’: 1 dependencies
> couldn't be built
> error: build of ‘/nix/store/bmp2ibgc82rmx14bgavd3pknwxwdp4ld-all.drv’
> failed
>
>
>
> config.nix
> with import <nixpkgs> {};
>
> {
> allowUnfree = true;
>
> packageOverrides = pkgs_: with pkgs_; {
> canon = callPackage ./pkgs/canon {
> inherit (pkgs) pkgs;
> };
>
>
> all = with pkgs; buildEnv {
> name = "all";
> paths = [
> canon
> ];
> };
> };
> }
>
>
> default.nix:
> { stdenv
> , pkgs
> , udev
> , alsaLib
> , gtk2-x11
> , patchelf
> , binutils
> , popt
> , cups
> , cairo
> , pango
> , fontconfig
> , glib
> , dpkg
> , atk
> , procps
> , gdk_pixbuf
> , zlib
> , libxml2
> , libtiff
> , firefox
> , libX11
> , libXcursor
> , libXrandr
> , libXext
> , libXinerama
> , libXrender
> , libXi
> , libXfixes
> }:
>
> stdenv.mkDerivation {
> name = "canon-mp250";
> src = ./usr;
> builder = ./builder.sh;
> libPath = stdenv.lib.makeLibraryPath [
> stdenv.cc.cc
> udev
> alsaLib
> gtk2-x11
> binutils
> popt
> cups
> cairo
> pango
> fontconfig
> glib
> dpkg
> atk
> procps
> patchelf
> gdk_pixbuf
> libxml2
> libtiff
> libX11
> libXcursor
> libXrandr
> libXext
> libXinerama
> libXrender
> libXi
> libXfixes
> ];
>
> }
>
>
> builder.sh:
> source $stdenv/setup
>
> mkdir -p $out/
> cp -r $src/* $out/
>
>
> chmod 777 -R $out/bin/*
> chmod 777 -R $out/lib/cups/filter/*
> chmod 777 -R $out/lib/cups/backend/*
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/cngpijmonmp250
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/cngpij
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/cnijnetprn
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/lgmonmp250
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/cifmp250
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/printuimp250
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/bin/cnijnpr
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/lib/cups/filter/pstocanonij
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/lib/cups/backend/cnijusb
>
> patchelf --interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
> --set-rpath $libPath:$out/lib \
> $out/lib/cups/backend/cnijnet
>
> ls -lh $out/lib/
> ls -lh $out/
>
> ln -sv $out/lib/libcnbpcmcm356.so.8.0.1 $out/lib/libcnbpcmcm356.so
> ln -sv $out/lib/libcnbpcnclbjcmd356.so.3.3.0
> $out/lib/libcnbpcnclbjcmd356.so
> ln -sv $out/lib/libcnbpess356.so.3.3.3 $out/lib/libcnbpess356.so
> ln -sv $out/lib/libcnnet.so.1.2.0 $out/lib/libcnnet.so
> ln -sv $out/lib/libcnbpcnclapi356.so.3.5.0 $out/lib/libcnbpcnclapi356.so
> ln -sv $out/lib/libcnbpcnclui356.so.3.6.0 $out/lib/libcnbpcnclui356.so
> ln -sv $out/lib/libcnbpo356.so.1.0.2 $out/lib/libcnbpo356.so
>
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> nix-dev at lists.science.uu.nl
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