Now, the error is like the below :-( feng@tumashu:~ $ guix pull fetching path `/gnu/store/f5shnag8k1ny9vx6vwrvbw87b05888dz-make-boot0-4.2.1'... Downloading https://mirror.hydra.gnu.org/guix/nar/gzip/f5shnag8k1ny9vx6vwrvbw87b05888dz-make-boot0-4.2.1 (218KiB installed)... guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/gzip/f5shnag8k1ny9vx6vwrvbw87b05888dz-make-boot0-4.2.1' failed: 404, "Not Found" fetching path `/gnu/store/f5shnag8k1ny9vx6vwrvbw87b05888dz-make-boot0-4.2.1' failed with exit code 1 fetching path `/gnu/store/5vvzwh41q3l0fdjyjxiz105fsxcz35rs-module-import'... killing process 1708 guix pull: error: build failed: some substitutes for the outputs of derivation `/gnu/store/d1qkv7x8ayi75qjlg7d5j5g1h7y4fl5p-make-boot0-4.2.1.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source feng@tumashu:~ $ At 2017-05-06 00:15:12, "ludo@gnu.org (Ludovic" <=?utf-8?Q?Court=C3=A8s?=)> wrote: >tumashu skribis: > >> feng@tumashu:~ $ guix pull >> fetching path `/gnu/store/1drx7dy1zakc0xs60nb0im1jbvxp11dj-isrgrootx1.pem'... >> Downloading https://mirror.hydra.gnu.org/guix/nar/gzip/1drx7dy1zakc0xs60nb0im1jbvxp11dj-isrgrootx1.pem (2KiB installed)... >> guix substitute: error: download from 'https://mirror.hydra.gnu.org/guix/nar/gzip/1drx7dy1zakc0xs60nb0im1jbvxp11dj-isrgrootx1.pem' failed: 404, "Not Found" >> fetching path `/gnu/store/1drx7dy1zakc0xs60nb0im1jbvxp11dj-isrgrootx1.pem' failed with exit code 1 >> fetching path `/gnu/store/bcq7sqhg18b7b1q87j8z60d5hybsdafm-letsencryptauthorityx3.pem'... >> killing process 3656 >> guix pull: error: build failed: some substitutes for the outputs of derivation `/gnu/store/hm8c3lfvxkspqg9g3hcb877lkiqriad9-isrgrootx1.pem.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source >> feng@tumashu:~ $ > >This should be fixed as you read it (just the time for nginx to expire >the cached 404.) > >(For the curious, I fixed it by running: > > wget -O - https://hydra.gnu.org/1drx7dy1zakc0xs60nb0im1jbvxp11dj.narinfo > >which told ¡®guix publish¡¯ to regenerate the nar corresponding to this >narinfo. The problem we had here was that the nginx caches had cached >the narinfo but not the nar, and ¡®guix publish¡¯ currently only >generate nars when their narinfo is first queried.) > >Thanks for your report! > >Ludo¡¯.