On Sat, 8 Jun 2019, Marius Bakke wrote:
Jack Hill <jackh...@jackhill.us> writes:
Hi Guix,
I'm trying to copy the store items for ungoogled-chromium from one of my
hosts that has many computational resources to another one that does not,
so that I do not have to build ungoogled-chromium on the less powerful
host.
However, even after copying the store items using guix archive --export |
guix archive --import, the less powerful host wants to build
ungoogled-chromium because the derivations differ (see attachments).
I suspect this has to do with grafts. Guix is missing a substitute for
the 'ungrafted' package and fails to realize the grafted derivation.
Exporting with --no-grafts should do the trick.
Marius,
Thanks! That was it.
If you don't mind, I have a few follow up question to help me understand
how everything works:
How is guix archive --no-grafts different from guix build --no-grafts? Oh,
or after reading the manual for --no-grafts again, maybe I used the wrong
incantation (guix build --no-grafts package-name instead of guix build
package-name --no-grafts)?
What's really going on with --no-grafts. Is it that guix on my less
powerful host has never seen the the ungoogled-chromium version build
against the older dependencies, so doesn't accept the older version that
could be grafted? I guess, I'm not sure exactly what you mean by "fails to
realize the grafted derivation". Is that a bug?
Sorry, I don't think that question was very clear. It probably means that
while I think I know what grafts are, I don't know enough about what's
going on to ask the question properly. I think this all could be summarized
as, "please explain more."
Many thanks,
Jack
