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[85.214.156.166]) by gmr-mx.google.com with ESMTPS id 5b1f17b1804b1-4956541ee07si511055e9.2.2026.07.21.06.58.50 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 21 Jul 2026 06:58:50 -0700 (PDT) Received-SPF: pass (google.com: domain of amikan@ilbers.de designates 85.214.156.166 as permitted sender) client-ip=85.214.156.166; Received: from [127.0.0.1] ([88.130.203.42]) (authenticated bits=0) by shymkent.ilbers.de (8.15.2/8.15.2/Debian-8+deb9u1) with ESMTPSA id 66LDwnxc029529 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 21 Jul 2026 15:58:50 +0200 Message-ID: <9145ccb1-1679-497f-a467-e7dad05e964a@ilbers.de> Date: Tue, 21 Jul 2026 16:58:49 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC 2/2] rootfs: use host apt when installing in cross mode To: Felix Moessbauer , isar-users@googlegroups.com Cc: cedric.hombourger@siemens.com References: <20260720105228.395364-1-felix.moessbauer@siemens.com> <20260720105228.395364-2-felix.moessbauer@siemens.com> Content-Language: en-US, ru-RU From: Anton Mikanovich In-Reply-To: <20260720105228.395364-2-felix.moessbauer@siemens.com> Content-Type: text/plain; charset="UTF-8"; format=flowed X-Spam-Status: No, score=-4.6 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H2, RCVD_IN_RP_CERTIFIED,RCVD_IN_RP_RNBL,RCVD_IN_RP_SAFE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-Original-Sender: amikan@ilbers.de X-Original-Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of amikan@ilbers.de designates 85.214.156.166 as permitted sender) smtp.mailfrom=amikan@ilbers.de Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-TUID: HFGqhezs3YhF 20.07.2026 13:52, 'Felix Moessbauer' via isar-users wrote: > Currently the apt inside the chroot is used to perform the extraction > and installation. This is really slow on non native architectures (esp. > on larger packages), as the whole operation is emulated. > > We improve this by using the host apt for the dependency resolution, > unpack and configure operation. The dpkg chroots into the rootfs to run > the target maintainer scripts (emulated via qemu in cross builds), > mirroring how mmdebstrap installs. As we already have all packages in > the apt cache (since e09589d28), we don't need to mount the isar apt or > base apt - which would not work as the host apt would lookup the > absolute apt paths on the host (i.e. read /isar-apt from the host > instead of the chroot). > > Signed-off-by: Felix Moessbauer > --- > meta/classes-recipe/rootfs.bbclass | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/meta/classes-recipe/rootfs.bbclass b/meta/classes-recipe/rootfs.bbclass > index 6af29b40..95210f4c 100644 > --- a/meta/classes-recipe/rootfs.bbclass > +++ b/meta/classes-recipe/rootfs.bbclass > @@ -390,9 +390,15 @@ rootfs_install_pkgs_install[network] = "${TASK_USE_SUDO}" > rootfs_install_pkgs_install() { > run_privileged_heredoc <<'EOF' > set -e > + # Unpack and configure packages using the host apt. Dependency resolution > + # and the apt frontend run natively (-o Dir points at the rootfs), while > + # dpkg chroots into the rootfs to run the target maintainer scripts > + # (emulated via qemu in cross builds), mirroring how mmdebstrap installs. > ${@insert_isar_mounts(d, d.getVar('ROOTFSDIR'), d.getVar('ROOTFS_MOUNTS')) if d.getVar('ISAR_CHROOT_MODE') == 'unshare' else ''} > - chroot "${ROOTFSDIR}" \ > - /usr/bin/apt-get ${ROOTFS_APT_ARGS} --no-download ${ROOTFS_PACKAGES} > + /usr/bin/apt-get -o APT::Architecture=${ROOTFS_ARCH} \ > + -o Dir="${ROOTFSDIR}" \ > + -o DPkg::Chroot-Directory="${ROOTFSDIR}" \ > + ${ROOTFS_APT_ARGS} --no-download ${ROOTFS_PACKAGES} I think we can drop full binary path here and just let the host OS use its PATH value. > EOF > } > -- You received this message because you are subscribed to the Google Groups "isar-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to isar-users+unsubscribe@googlegroups.com. To view this discussion visit https://groups.google.com/d/msgid/isar-users/9145ccb1-1679-497f-a467-e7dad05e964a%40ilbers.de.