[Nix-dev] Cygwin "nix-channel --update" problem. Tar won't work.

[Chi-Jung Huang]

Hi All,

I am a newbie using nix. Just got nix install on my Window XP running cygwin. Everything seems to be fine until when I started to run nix-channel update and the following message occurs:
============================================================
$ nix-channel --update
obtaining list of Nix archives at `http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable/MANIFEST.bz2'...

6079 store paths in manifest
obtaining list of Nix archives at `http://buildfarm.st.ewi.tudelft.nl/releases/meta-environment/channels-v3/aterm-unstab
le/MANIFEST'...
######################################################################## 100.0%
565 store paths in manifest
downloading Nix expressions from `http://nixos.org/releases/nixpkgs/channels/nixpkgs-unstable/nixexprs.tar.bz2'...

downloading Nix expressions from `http://buildfarm.st.ewi.tudelft.nl/releases/meta-environment/channels-v3/aterm-unstabl
e/nixexprs.tar.bz2'...
######################################################################## 100.0%
unpacking channel Nix expressions...
the following derivations will be built:
  /nix/store/gmlh0w60jygbxfgqrz8535wkyijpw91d-channels.drv
building path(s) `/nix/store/gwkjfqyi50afy1y2wc37b2akvsfwj0jy-channels'
unpacking channel nixpkgs-unstable
/usr/bin/tar: This does not look like a tar archive
/usr/bin/tar: Exiting with failure status due to previous errors
builder for `/nix/store/gmlh0w60jygbxfgqrz8535wkyijpw91d-channels.drv' failed with exit code 2
error: build of `/nix/store/gmlh0w60jygbxfgqrz8535wkyijpw91d-channels.drv' failed
cannot realise store expression at /usr/local/bin/nix-channel line 135.
$

=======================================================================

The problem seems to point to a tar problem but I don't know how to fix it.

I appreciate any help to point me to the right direction. Thanks in advance.

CJ


      
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