GNU bug report logs - #39643
(Out-of-tree) system kernel modules only found in :out

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: Tobias Geerinckx-Rice via Bug reports for GNU Guix <bug-guix <at> gnu.org>
Subject: (Out-of-tree) system kernel modules only found in :out
Date: Mon, 17 Feb 2020 15:45:52 +0100

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Guix,

After adding (specification->package+output "zfs:module") to my 
system packages, it's still missing from current-system:

 $ guix system reconfigure …

 $ ls /run/current-system/profile/lib/modules/
 5.4.0-pf7-4-ed26-M88

That's my horrible custom Linux fork/version/abomination. 
Apologies.  The ZFS package simply compiles against Guix's default 
linux-libre-5.4.20-gnu package.

After editing the zfs package to install everything into the main 
:out output:

 $ guix system reconfigure …

 $ ls /run/current-system/profile/lib/modules/
 5.4.0-pf7-4-ed26-M88  5.4.20-gnu

 $ ls 
 /run/current-system/profile/lib/modules/5.4.20-gnu/extra/zfs/
 zfs.ko

Kind regards,

T G-R

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Message #8 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Danny Milosavljevic <dannym <at> scratchpost.org>
To: Tobias Geerinckx-Rice via Bug reports for GNU Guix <bug-guix <at> gnu.org>
Cc: Tobias Geerinckx-Rice <me <at> tobias.gr>, 39643 <at> debbugs.gnu.org
Subject: Re: bug#39643: (Out-of-tree) system kernel modules only found in :out
Date: Tue, 18 Feb 2020 12:43:34 +0100

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Hi,

I don't know what could be up with it.

I've never used specification->package+output before and I don't know whether
one has to do something special afterwards.

That said, maybe try using https://debbugs.gnu.org/cgi/bugreport.cgi?bug=37868
(v2) and see whether it magically fixes the problem (probably not).

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Message #14 received at 39643 <at> debbugs.gnu.org (full text, mbox):

From: Marius Bakke <mbakke <at> fastmail.com>
To: Tobias Geerinckx-Rice <me <at> tobias.gr>, 39643 <at> debbugs.gnu.org
Subject: Re: bug#39643: (Out-of-tree) system kernel modules only found in :out
Date: Tue, 18 Feb 2020 18:26:46 +0100

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Tobias Geerinckx-Rice via Bug reports for GNU Guix <bug-guix <at> gnu.org>
writes:

> Guix,
>
> After adding (specification->package+output "zfs:module") to my 
> system packages, it's still missing from current-system:
>
>   $ guix system reconfigure …
>
>   $ ls /run/current-system/profile/lib/modules/
>   5.4.0-pf7-4-ed26-M88
>
> That's my horrible custom Linux fork/version/abomination. 
> Apologies.  The ZFS package simply compiles against Guix's default 
> linux-libre-5.4.20-gnu package.

To build out-of-tree modules with a custom kernel I would expect that
you have to rebuild them against your kernel:

(define my-kernel
 (package/inherit
  linux-libre
  ...))

(define with-custom-kernel
 (package-input-rewriting `((,linux-libre . ,my-kernel))))

(define zfs-with-custom-kernel
 (with-custom-kernel zfs))

Alternatively, I see that 'linux-module-build-system' takes a #:linux
argument:

(define zfs-with-my-kernel
 (package/inherit
  zfs
  (arguments (substitute-keyword-arguments (package-arguments zfs))
   ((#:linux _ #f) my-kernel))))

Will these options work for you, or am I misunderstanding something?

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Message #17 received at 39643 <at> debbugs.gnu.org (full text, mbox):

From: Tobias Geerinckx-Rice <me <at> tobias.gr>
To: Marius Bakke <mbakke <at> fastmail.com>
Cc: 39643 <at> debbugs.gnu.org
Subject: Re: bug#39643: (Out-of-tree) system kernel modules only found in :out
Date: Tue, 18 Feb 2020 18:34:56 +0100

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Marius,

Marius Bakke 写道：
> Will these options work for you, or am I misunderstanding 
> something?

I think so.  The bug is about zfs:module being treated differently 
from zfs:out when constructing a system/ union, not about the 
build system.

Kind regards,

T G-R

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