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Re: rrdtool hash mismatch

From: Josselin Poiret
Subject: Re: rrdtool hash mismatch
Date: Wed, 12 Apr 2023 23:12:01 +0200


Aleksandr Vityazev <> writes:

> Hi,
> rrdtool package has not been updated for several years and according to
> builds normally, but if you run:
> ./pre-inst-env guix build --no-substitutes --check --no-grafts rrdtool
> it outputs an error
> sha256 hash mismatch for 
> /gnu/store/icyq4d3fsbbf2yw3dmg7cxgb05qzfd3q-rrdtool-1.7.2.tar.gz:
> expected hash: 1nsqra0g2nja19akmf9x5y9hhgc35ml3w9dcdz2ayz7zgvmzmm6d1
> actual hash: 029r3h7l06m3sy9q0hr2krvinhzkqvyl14wj7qjck79bm7rdvp48
> which looks strange to me. Maybe it's not, but I haven't figured out
> why?

The upstream-provided tarball has probably been changed on the server
without a version bump.  The reason why you can still use it with
substitutes is that Guix just uses the version that's built with the old
tarball because we know its hash.  When you try to download it from
upstream, Guix rightfully complains that the hash has changed and
refuses to go forward!

Josselin Poiret

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