Thank you for your reply.

Rutherther <[email protected]> writes:

> This is not possible with guix system easily. Guix channel commonly keeps
> only one version of a package in current source code, so you cannot just
> specify older version to stay on, when you guix pull, and reconfigure,
> everything will be at the versions that are declared in the channels.
> If you aren't ready to update, use guix instance with same channels as
> with previous reconfigure.

Ok, at least I can just don't run `guix pull' before. What I want to
avoid is :

* When adding a new service with its package, having all the other
  services that update their packages including to a new major version

* When updating 1 package to have a security patch, having my e-mail
  service who also update and crash, resulting of choosing between
  security or no e-mail


But if, in my `operating-system', I have a package defined like this:

    (specification->package "[email protected]")

Does a `guix pull' and a `guix system reconfigure' only update prosody
if a package corresponding to the 0.12 is available ? And otherwise do
nothing ?

Like, if I have the 0.12.1 installed and a `guix pull' give me access to
a definition of the version 0.12.2, the update is done while
reconfigure. But if the definiton of the package prosody is at version
0.13.0 the update is not done ?


> There are some exceptions, like gcc, where even older major versions are
> kept, and there you can refer to older versions, either through symbols
> or through specifications.
>
> If you wanted to pin some packages, you can use inferiors, but they
> aren't easy for achieving the goal you want of keeping packages at given
> version until you want to update.

I have to see what are the inferiors.

Attachment: signature.asc
Description: PGP signature

Reply via email to