linux-kernel - Re: [PATCH v3 0/2] scripts: introduce containerized builds

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Message-ID: <56209dbc-2dbe-4f52-a703-bcbd9ed3e712@gtucker.io>
Date: Thu, 22 Jan 2026 15:12:36 +0100
From: Guillaume Tucker <gtucker@...cker.io>
To: Nicolas Schier <nsc@...nel.org>
Cc: Nathan Chancellor <nathan@...nel.org>, Miguel Ojeda <ojeda@...nel.org>,
 David Gow <davidgow@...gle.com>, Onur Özkan
 <work@...rozkan.dev>, Arnd Bergmann <arnd@...db.de>,
 linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
 linux-kbuild@...r.kernel.org, automated-testing@...ts.yoctoproject.org,
 workflows@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH v3 0/2] scripts: introduce containerized builds

Hi Nicolas,

On 20/01/2026 14:54, Nicolas Schier wrote:
> Out-of-source builds do not work on my system with podman.  If this is
> expected, I think it would be great to mention that somewhere in the
> documentation.

The v4 now mentions this and also includes a trick using bind-mount:

  mkdir -p $HOME/tmp/my-kernel-build
  mkdir -p build
  sudo mount --bind $HOME/tmp/my-kernel-build build
  scripts/container -i kernel.org/gcc -- make mrproper
  scripts/container -i kernel.org/gcc -- make O=build defconfig
  scripts/container -i kernel.org/gcc -- make O=build -j$(nproc)

Would this work for your use-case?  Directory names are entirely
arbitrary.  It's not ideal but might be good enough as a workaround
until this gets properly supported by the tool in a future version.

Cheers,
Guillaume