How to configure TMPDIR for Guix System? (self.guix)

submitted 1 month ago by Doom4535 to c/guix@lemmy.ml

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I'd like to change my Guix System to build packages in a different location (`/dev/shm/`) so that they are built on a tmpfs partition to hopefully speed up builds (defaults to `/tmp` which is on the `/` partition on Guix System). The Guix Manual only mentions that this may be done by setting the environment variable `TMPDIR`.

I was able to do this for a system that is configured as a foreign install by modifying the SystemD service file (Guix Mailing List), but I haven't been able to figure out how to modify my `/etc/config.scm` file to do this on Guix System.

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[-] rrobin@lemmy.world 1 points 2 weeks ago

I think it is configured in guix-configuration from the guix service type

https://guix.gnu.org/manual/en/html_node/Base-Services.html

there is a tmpdir option there ("A directory path where the guix-daemon will perform builds").

I have not tried this, but something like this on your list of services

(service guix-service-type
  (guix-configuration
    (tmpdir "/whatever")))

As usual for any big changes it is best to try running the operating system spec in a vm with guix system vm to see if it boots up ok.

this post was submitted on 24 Oct 2024

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