Am Sonntag, 6. Januar 2013 schrieb Ludovic Courtès:
> I’ve rebuilt and uploaded all the bootstrap binaries with a libc that
> doesn’t use the nscd and has static NSS modules.  With commit 79580eb of
> core-updates, these new binaries are being used.
> 
> Let me know how it works!  :-)

Well, I do not understand what is happening. To check whether the problem 
was solved, I wanted to verify that it was still present before the update, 
and tried to build a new package (ddrescue). What shall I say, it was 
downloaded correctly before updating my git repository!

After updating, things still do not work, which makes sense, since the new 
bootstrap binaries are not yet downloaded:

@ build-started /nix/store/blsxf7m8h6rddhq6ajksjhq27fzfi90v-
gcc-4.7.2.tar.xz.drv /nix/store/9vijlrv06dvli9m2fw9ha3r3mswz0qas-
gcc-4.7.2.tar.xz x86_64-linux /usr/local/guix-
git/var/log/nix/drvs/blsxf7m8h6rddhq6ajksjhq27fzfi90v-
gcc-4.7.2.tar.xz.drv.bz2
@ build-started /nix/store/ks8lzbbnw97n9rxbyf7fxhgsl2alkjc3-static-
binaries.tar.xz.drv /nix/store/n5wq53xj7fyzbf4w8whz0q8ffh6yy8b9-static-
binaries.tar.xz x86_64-linux /usr/local/guix-
git/var/log/nix/drvs/ks8lzbbnw97n9rxbyf7fxhgsl2alkjc3-static-
binaries.tar.xz.drv.bz2
@ build-started /nix/store/zma6787ffbaj9dy8vxjirdnsrs5k8mrx-
binutils-2.22.tar.xz.drv /nix/store/bvhn746hnl96xwm88g3xs3wqv015zbha-
binutils-2.22.tar.xz x86_64-linux /usr/local/guix-
git/var/log/nix/drvs/zma6787ffbaj9dy8vxjirdnsrs5k8mrx-
binutils-2.22.tar.xz.drv.bz2
@ build-started /nix/store/w5d3ha447cb8zhrxh64y8q14izcp1m8q-
glibc-2.17.tar.xz.drv /nix/store/q61dk4k2zcnvxvha8k71j1a46lyr89vn-
glibc-2.17.tar.xz x86_64-linux /usr/local/guix-
git/var/log/nix/drvs/w5d3ha447cb8zhrxh64y8q14izcp1m8q-
glibc-2.17.tar.xz.drv.bz2
starting download of `/nix/store/9vijlrv06dvli9m2fw9ha3r3mswz0qas-
gcc-4.7.2.tar.xz' from 
`http://www.fdn.fr/~lcourtes/software/guix/packages/x86_64-
linux/20130105/gcc-4.7.2.tar.xz'...
ERROR: In procedure getaddrinfo: Name or service not known
failed to download "/nix/store/9vijlrv06dvli9m2fw9ha3r3mswz0qas-
gcc-4.7.2.tar.xz" from 
"http://www.fdn.fr/~lcourtes/software/guix/packages/x86_64-
linux/20130105/gcc-4.7.2.tar.xz"
starting download of `/nix/store/q61dk4k2zcnvxvha8k71j1a46lyr89vn-
glibc-2.17.tar.xz' from 
`http://www.fdn.fr/~lcourtes/software/guix/packages/x86_64-
linux/20130105/glibc-2.17.tar.xz'...
ERROR: In procedure getaddrinfo: Name or service not known
failed to download "/nix/store/q61dk4k2zcnvxvha8k71j1a46lyr89vn-
glibc-2.17.tar.xz" from 
"http://www.fdn.fr/~lcourtes/software/guix/packages/x86_64-
linux/20130105/glibc-2.17.tar.xz"
builder for `/nix/store/blsxf7m8h6rddhq6ajksjhq27fzfi90v-
gcc-4.7.2.tar.xz.drv' failed with exit code 1
@ build-failed /nix/store/blsxf7m8h6rddhq6ajksjhq27fzfi90v-
gcc-4.7.2.tar.xz.drv /nix/store/9vijlrv06dvli9m2fw9ha3r3mswz0qas-
gcc-4.7.2.tar.xz 1 builder for 
`/nix/store/blsxf7m8h6rddhq6ajksjhq27fzfi90v-gcc-4.7.2.tar.xz.drv' failed 
with exit code 1

However, I can execute
   guix-download http://www.fdn.fr/~lcourtes/software/guix/packages/x86_64-
linux/20130105/gcc-4.7.2.tar.xz
(as well as for all other packages), and then start a build.

How come that "guix-download" does work, but the same download fails 
through "guix-build"?

Andreas