Re: Removing corrupted items from a mirror

[Efraim Flashner <efraim@flashner.co.il>]

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On Sat, Jul 23, 2016 at 08:26:20PM -0400, Leo Famulari wrote:
> While trying to build the trash-cli patch on top of the master branch
> (commit 2a69d4df7d7), I got the following hash mismatch while
> downloading a coreutils substitute from my local mirror. When I used
> mirror.hydra.gnu.org instead, the correct data was downloaded.
> 
> My question is: How can I remove this corrupted file from the mirror? I
> don't know how to figure the name of the file to remove.
> 
> $ ./pre-inst-env guix build trash-cli
> substitute: warning: failed to install locale: Invalid argument
> @ substituter-started /gnu/store/vsrcn35rjpgrrak1w31m7yhc12zz3hd1-coreutils-8.24 /gnu/store/hb25mzl9a2qjywzx41bfqgi9znc29h32-guix-0.10.0-0.e901/libexec/guix/substitute
> warning: failed to install locale: Invalid argument
> 
> Found valid signature for /gnu/store/vsrcn35rjpgrrak1w31m7yhc12zz3hd1-coreutils-8.24
> From https://my-mirror/nar/vsrcn35rjpgrrak1w31m7yhc12zz3hd1-coreutils-8.24
> Downloading vsrcn3...-coreutils-8.24 (13.8MiB installed)...
>  coreutils-8.24                                                                                                                                                        3.8MiB/s 00:01 | 3.5MiB transferred
> @ substituter-failed /gnu/store/vsrcn35rjpgrrak1w31m7yhc12zz3hd1-coreutils-8.24 0 hash mismatch in downloaded path `/gnu/store/vsrcn35rjpgrrak1w31m7yhc12zz3hd1-coreutils-8.24': expected a91641b020926f42d7dcbe6e9d82be3b5d39f401b7328ea6d0cd79f7893aabb0, got fc8cf24465d8a97fef7cc41dfccddca158b6258ad0e0929e002552d258dec7da
> @ substituter-started /gnu/store/dgwa731j19lj41cds023sspcg9lqgh4j-module-import /gnu/store/hb25mzl9a2qjywzx41bfqgi9znc29h32-guix-0.10.0-0.e901/libexec/guix/substitute
> killing process 28390
> guix build: error: build failed: some substitutes for the outputs of derivation `/gnu/store/yk4nv2zz40f9k7hr6c9v04rn3pb5l00s-coreutils-8.24.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source 
> 

I was trying to build something earlier, got bounced between two
mismatched hashes so neither would perminantly fail. Had to kill it and
build both with --no-subsitutes to continue

-- 
Efraim Flashner   <efraim@flashner.co.il>   אפרים פלשנר
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