Hi Brett, Brett Gilio skribis: > Generation 10 Dec 03 2018 11:42:41 (current) > guix 4f03aa2 > repository URL: https://git.savannah.gnu.org/git/guix.git > branch: master > commit: 4f03aa23e805bd653de774e1d74ed2f50826899b > > downloading from https://mirror.hydra.gnu.org/guix/nar/gzip/xbj4fhad0lnz0ziflwi90gyqbls8ains-nss-certs-3.39... > nss-certs-3.39 145KiB 417KiB/s 00:00 [##################] 100.0% > > sha256 hash mismatch for /gnu/store/xbj4fhad0lnz0ziflwi90gyqbls8ains-nss-certs-3.39: > expected hash: 101v69xp1qzw9v6pgmbhw7gfdaic8vvs4v5l567lx7f2mjp25rla > actual hash: 08ziz714diyfq2klxy1nc0nhr5wa2vd356n9vizlq913a7an9a9s > substitution of /gnu/store/xbj4fhad0lnz0ziflwi90gyqbls8ains-nss-certs-3.39 failed The problem seems to be gone because I’m seeing the right hash here: --8<---------------cut here---------------start------------->8--- $ wget -q -O - https://mirror.hydra.gnu.org/nar/gzip/xbj4fhad0lnz0ziflwi90gyqbls8ains-nss-certs-3.39 |gunzip -c |guix hash - 101v69xp1qzw9v6pgmbhw7gfdaic8vvs4v5l567lx7f2mjp25rla $ wget -q -O - https://mirror.hydra.gnu.org/xbj4fhad0lnz0ziflwi90gyqbls8ains.narinfo |grep Hash NarHash: sha256:101v69xp1qzw9v6pgmbhw7gfdaic8vvs4v5l567lx7f2mjp25rla --8<---------------cut here---------------end--------------->8--- Could you try again? However berlin.guixsd.org is publishing the one with hash 08ziz714diyfq2klxy1nc0nhr5wa2vd356n9vizlq913a7an9a9s, and the difference is an encoding bug: --8<---------------cut here---------------start------------->8--- $ diff -ru /tmp/nss-certs.{hydra,berlin} Only in /tmp/nss-certs.hydra/etc/ssl/certs: AC_Raíz_Certicámara_S.A.:2.15.7.126.82.147.123.224.21.227.87.240.105.140.203.236.12.pem Only in /tmp/nss-certs.berlin/etc/ssl/certs: AC_Ra?z_Certic?mara_S.A.:2.15.7.126.82.147.123.224.21.227.87.240.105.140.203.236.12.pem Only in /tmp/nss-certs.hydra/etc/ssl/certs: NetLock_Arany_=Class_Gold=_Főtanúsítvány:2.6.73.65.44.228.0.16.pem Only in /tmp/nss-certs.berlin/etc/ssl/certs: NetLock_Arany_=Class_Gold=_F?tan?s?tv?ny:2.6.73.65.44.228.0.16.pem --8<---------------cut here---------------end--------------->8--- (Probably related to .) Ludo’.