From: Zhihang Wei <wzh@ilbers.de>
To: Felix Moessbauer <felix.moessbauer@siemens.com>,
isar-users@googlegroups.com
Subject: Re: [PATCH 1/1] bootstrap: do not include apt cache
Date: Tue, 15 Sep 2026 11:02:04 +0200 [thread overview]
Message-ID: <9386222a-c8bd-43e4-880c-95cf578d479d@ilbers.de> (raw)
In-Reply-To: <20260909164959.1199121-1-felix.moessbauer@siemens.com>
Applied to next, thanks.
Zhihang
On 9/9/26 18:49, 'Felix Moessbauer' via isar-users wrote:
> We currently include the full apt cache (.deb files) in the bootstrap
> artifact. As we copy-in (not mount) the existing downloads dir prior to
> starting mmdebstrap, this results in the following issues:
>
> - output tar is not reproducible (depends on the content of the
> downloads dir)
> - output tar is potentially huge (multi gigabyte)
>
> This likely is a forgotten side effect of skipping the apt cache
> cleaning, as we need to preserve the lists. By instructing mmdebstrap to
> only keep the lists, can avoid both issues. Later stages (like
> the assembly of the sbuild-chroot) anyways sync in the apt cache from
> the downloads dir, so the existing data is not needed / used.
>
> Signed-off-by: Felix Moessbauer <felix.moessbauer@siemens.com>
> ---
> meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
> index 11706b71..a961fe1d 100644
> --- a/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
> +++ b/meta/recipes-core/isar-mmdebstrap/isar-mmdebstrap.inc
> @@ -258,7 +258,7 @@ do_bootstrap() {
> --customize-hook='echo nameserver 127.0.0.1 > "$1"/etc/resolv.conf' \
> --customize-hook='echo isar > "$1"/etc/hostname' \
> ${@'--skip=output/dev' if d.getVar('ISAR_CHROOT_MODE') == 'unshare' else ''} \
> - --skip=cleanup/apt \
> + --skip=cleanup/apt/lists \
> --skip=download/empty \
> ${MMOPTS} \
> ${@get_apt_opts(d, '--aptopt')} \
--
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prev parent reply other threads:[~2026-09-15 9:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 16:49 'Felix Moessbauer' via isar-users
2026-09-15 9:02 ` Zhihang Wei [this message]
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