[{"id":3679315,"web_url":"http://patchwork.ozlabs.org/comment/3679315/","msgid":"","list_archive_url":null,"date":"2026-04-20T09:15:01","subject":"Re: [Buildroot] [PATCH v2 0/2] Add efibootguard bootloader package\n & example recipe","submitter":{"id":710,"url":"http://patchwork.ozlabs.org/api/people/710/","name":"Jan Kiszka","email":"jan.kiszka@siemens.com"},"content":"On 19.04.26 02:20, Christopher Obbard wrote:\n> This patch series adds support for the efibootguard bootloader\n> (https://github.com/siemens/efibootguard) to buildroot. efibootguard\n> can be useful when designing systems using A/B slot-based upgrades.\n> \n> The first patch introduces the efibootguard bootloader package which\n> builds the EFI application, user-space applications and host\n> applications.\n> \n> The second patch adds an example recipe which demonstrates how to use\n> efibootguard in a typical EFI boot scenario. This may serve as a\n> reference for users looking to integrate efibootguard into their system.\n> \n> efibootguard can be built for multiple architectures, but for now this\n> patch series only builds for x86_64 (since that was what the project I\n> added efibootguard to used). Support for additional architectures\n> (including arm, aarch64 and riscv) will come in future follow-up patches.\n> I expect to do that once this series has been merged.\n> \n> The example recipe has been boot-tested on QEMU with OVMF firmware and\n> I have confirmed the image boots & runs as expected.\n> \n> Feedback welcome!\n\nThanks for the recipes! Beside other archs, UKI and secure boot aren't\nin scope for this version either, right?\n\nJan\n\n> \n> Signed-off-by: Christopher Obbard \n> ---\n> Changes in v2:\n> - Rebase on top of buildroot 2026.02\n> - Update efibootguard to v0.22\n> - Link to v1: https://lore.kernel.org/r/20251219-wip-obbardc-boot-efibootguard-initial-pkg-v1-0-0f307ee73919@gmail.com\n> \n> ---\n> Christopher Obbard (2):\n> boot/efibootguard: new boot package\n> board/pc-efibootguard: add example efibootguard recipe\n> \n> DEVELOPERS | 5 +++\n> board/pc-efibootguard/genimage.cfg | 59 +++++++++++++++++++++++++++\n> board/pc-efibootguard/linux-efistub.fragment | 4 ++\n> board/pc-efibootguard/post-build.sh | 35 ++++++++++++++++\n> board/pc-efibootguard/post-image.sh | 7 ++++\n> board/pc-efibootguard/readme.txt | 30 ++++++++++++++\n> board/pc-efibootguard/run-image-qemu.sh | 9 +++++\n> boot/Config.in | 2 +\n> boot/efibootguard/Config.in | 37 +++++++++++++++++\n> boot/efibootguard/Config.in.host | 8 ++++\n> boot/efibootguard/efibootguard.hash | 3 ++\n> boot/efibootguard/efibootguard.mk | 60 ++++++++++++++++++++++++++++\n> configs/pc_x86_64_efibootguard_defconfig | 51 +++++++++++++++++++++++\n> 13 files changed, 310 insertions(+)\n> ---\n> base-commit: 52ee2f5644da5389634b2465f1dc31deb5a4807c\n> change-id: 20250207-wip-obbardc-boot-efibootguard-initial-pkg-9d16e4b283fd\n> \n> Best regards,","headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org header.i=@buildroot.org\n header.a=rsa-sha256 header.s=default header.b=IOLu01xy;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=140.211.166.137; helo=smtp4.osuosl.org;\n envelope-from=buildroot-bounces@buildroot.org; 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<20260419-wip-obbardc-boot-efibootguard-initial-pkg-v2-0-1420c48f78fa@gmail.com>","Content-Language":"en-US","Autocrypt":"addr=jan.kiszka@siemens.com; keydata=\n xsFNBGZY+hkBEACkdtFD81AUVtTVX+UEiUFs7ZQPQsdFpzVmr6R3D059f+lzr4Mlg6KKAcNZ\n uNUqthIkgLGWzKugodvkcCK8Wbyw+1vxcl4Lw56WezLsOTfu7oi7Z0vp1XkrLcM0tofTbClW\n xMA964mgUlBT2m/J/ybZd945D0wU57k/smGzDAxkpJgHBrYE/iJWcu46jkGZaLjK4xcMoBWB\n I6hW9Njxx3Ek0fpLO3876bszc8KjcHOulKreK+ezyJ01Hvbx85s68XWN6N2ulLGtk7E/sXlb\n 79hylHy5QuU9mZdsRjjRGJb0H9Buzfuz0XrcwOTMJq7e7fbN0QakjivAXsmXim+s5dlKlZjr\n L3ILWte4ah7cGgqc06nFb5jOhnGnZwnKJlpuod3pc/BFaFGtVHvyoRgxJ9tmDZnjzMfu8YrA\n +MVv6muwbHnEAeh/f8e9O+oeouqTBzgcaWTq81IyS56/UD6U5GHet9Pz1MB15nnzVcyZXIoC\n roIhgCUkcl+5m2Z9G56bkiUcFq0IcACzjcRPWvwA09ZbRHXAK/ao/+vPAIMnU6OTx3ejsbHn\n oh6VpHD3tucIt+xA4/l3LlkZMt5FZjFdkZUuAVU6kBAwElNBCYcrrLYZBRkSGPGDGYZmXAW/\n VkNUVTJkRg6MGIeqZmpeoaV2xaIGHBSTDX8+b0c0hT/Bgzjv8QARAQABzSNKYW4gS2lzemth\n IDxqYW4ua2lzemthQHNpZW1lbnMuY29tPsLBlAQTAQoAPhYhBABMZH11cs99cr20+2mdhQqf\n 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","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","From":"Jan Kiszka via buildroot ","Reply-To":"Jan Kiszka ","Cc":"James Hilliard ,\n efibootguard-dev@googlegroups.com,\n Thomas Petazzoni ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"buildroot-bounces@buildroot.org","Sender":"\"buildroot\" "}},{"id":3679828,"web_url":"http://patchwork.ozlabs.org/comment/3679828/","msgid":"","list_archive_url":null,"date":"2026-04-21T11:30:16","subject":"Re: [Buildroot] [PATCH v2 0/2] Add efibootguard bootloader package\n & example recipe","submitter":{"id":80843,"url":"http://patchwork.ozlabs.org/api/people/80843/","name":"Christopher Obbard","email":"obbardc@gmail.com"},"content":"Hi Jan,\n\nOn Mon, 20 Apr 2026 at 10:15, Jan Kiszka wrote:\n>\n> On 19.04.26 02:20, Christopher Obbard wrote:\n> > This patch series adds support for the efibootguard bootloader\n> > (https://github.com/siemens/efibootguard) to buildroot. efibootguard\n> > can be useful when designing systems using A/B slot-based upgrades.\n> >\n> > The first patch introduces the efibootguard bootloader package which\n> > builds the EFI application, user-space applications and host\n> > applications.\n> >\n> > The second patch adds an example recipe which demonstrates how to use\n> > efibootguard in a typical EFI boot scenario. This may serve as a\n> > reference for users looking to integrate efibootguard into their system.\n> >\n> > efibootguard can be built for multiple architectures, but for now this\n> > patch series only builds for x86_64 (since that was what the project I\n> > added efibootguard to used). Support for additional architectures\n> > (including arm, aarch64 and riscv) will come in future follow-up patches.\n> > I expect to do that once this series has been merged.\n> >\n> > The example recipe has been boot-tested on QEMU with OVMF firmware and\n> > I have confirmed the image boots & runs as expected.\n> >\n> > Feedback welcome!\n>\n> Thanks for the recipes! Beside other archs, UKI and secure boot aren't\n> in scope for this version either, right?\n\nThat's right. I was hoping to get some initial feedback from buildroot\nmaintainers to see if this\nis in the correct shape before adding more features like other arch\nbuilds, UKI and secureboot\nin a follow-up patchset.\n\nI also have a sample buildroot recipe to integrate a RAUC bundle with\nefibootguard and\nRAUC efibootguard integration:\nhttps://github.com/obbardc/buildroot/tree/wip/obbardc/rauc-efibootguard\nwhich is from https://github.com/rauc/rauc/pull/1450\n\nI planned to submit that example to buildroot in a follow-up patchset\ntoo, once the RAUC side is a bit further.\n\n\nCheers!\n\nChris","headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org header.i=@buildroot.org\n header.a=rsa-sha256 header.s=default header.b=Lemhb35Z;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=2605:bc80:3010::138; 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Tue, 21 Apr 2026\n 04:30:30 -0700 (PDT)","MIME-Version":"1.0","References":"\n <20260419-wip-obbardc-boot-efibootguard-initial-pkg-v2-0-1420c48f78fa@gmail.com>\n ","In-Reply-To":"","From":"Christopher Obbard ","Date":"Tue, 21 Apr 2026 12:30:16 +0100","X-Gm-Features":"AQROBzAwRCUKB7wuQ2-9XeiE_Wk6skEevXHS1bxM7gv-TvFPkpsOfZuYPB75i2g","Message-ID":"\n ","To":"Jan Kiszka ","X-Mailman-Original-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1776771031; x=1777375831; darn=buildroot.org;\n h=cc:to:subject:message-id:date:from:in-reply-to:references\n :mime-version:from:to:cc:subject:date:message-id:reply-to;\n bh=OOt/MjatHsyfSoRfzH0VE4du1g5Jy8AjXwJdNYJbCK4=;\n b=FIp9jwP/cfLUyBlmhFztVZy59zTeSAR5NLbZgSgOO8+DluxQlF6lehev5wlwB8kmrV\n aDYnDmxviBhkFjEDuAloxtt2DwcVvA02KkYWZ3fK2u59Mgptc12tGrkIErABmZWNLlDb\n UpboDvLlHonITBZIodi8ErqdHKNZieq6uS/l7Q9EoNdvOUxhFUAHRkaBfWYo0QIKy2pF\n q9Z/E7982BON63uj4w+8KVZXcPYIzESM7CIUl6ICEN0cv/kkz4mu+ekrTnlOfkFoj0qN\n j35L8b7jE8d/oMzuhDu7RZas/++uYf2kTqSuKJuyefG2o6eU5c2n9STWhiesdrgFeniK\n Op2A==","X-Mailman-Original-Authentication-Results":["smtp4.osuosl.org;\n dmarc=pass (p=none dis=none)\n header.from=gmail.com","smtp4.osuosl.org;\n dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.a=rsa-sha256 header.s=20251104 header.b=FIp9jwP/"],"Subject":"Re: [Buildroot] [PATCH v2 0/2] Add efibootguard bootloader package\n & example recipe","X-BeenThere":"buildroot@buildroot.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Discussion and development of buildroot ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Cc":"James Hilliard ,\n efibootguard-dev@googlegroups.com,\n Thomas Petazzoni , buildroot@buildroot.org","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Errors-To":"buildroot-bounces@buildroot.org","Sender":"\"buildroot\" "}},{"id":3680542,"web_url":"http://patchwork.ozlabs.org/comment/3680542/","msgid":"","list_archive_url":null,"date":"2026-04-22T11:22:05","subject":"Re: [Buildroot] [PATCH v2 0/2] Add efibootguard bootloader package\n & example recipe","submitter":{"id":710,"url":"http://patchwork.ozlabs.org/api/people/710/","name":"Jan Kiszka","email":"jan.kiszka@siemens.com"},"content":"On 21.04.26 13:30, Christopher Obbard wrote:\n> Hi Jan,\n> \n> On Mon, 20 Apr 2026 at 10:15, Jan Kiszka wrote:\n>>\n>> On 19.04.26 02:20, Christopher Obbard wrote:\n>>> This patch series adds support for the efibootguard bootloader\n>>> (https://github.com/siemens/efibootguard) to buildroot. efibootguard\n>>> can be useful when designing systems using A/B slot-based upgrades.\n>>>\n>>> The first patch introduces the efibootguard bootloader package which\n>>> builds the EFI application, user-space applications and host\n>>> applications.\n>>>\n>>> The second patch adds an example recipe which demonstrates how to use\n>>> efibootguard in a typical EFI boot scenario. This may serve as a\n>>> reference for users looking to integrate efibootguard into their system.\n>>>\n>>> efibootguard can be built for multiple architectures, but for now this\n>>> patch series only builds for x86_64 (since that was what the project I\n>>> added efibootguard to used). Support for additional architectures\n>>> (including arm, aarch64 and riscv) will come in future follow-up patches.\n>>> I expect to do that once this series has been merged.\n>>>\n>>> The example recipe has been boot-tested on QEMU with OVMF firmware and\n>>> I have confirmed the image boots & runs as expected.\n>>>\n>>> Feedback welcome!\n>>\n>> Thanks for the recipes! Beside other archs, UKI and secure boot aren't\n>> in scope for this version either, right?\n> \n> That's right. I was hoping to get some initial feedback from buildroot\n> maintainers to see if this\n> is in the correct shape before adding more features like other arch\n> builds, UKI and secureboot\n> in a follow-up patchset.\n> \n> I also have a sample buildroot recipe to integrate a RAUC bundle with\n> efibootguard and\n> RAUC efibootguard integration:\n> https://github.com/obbardc/buildroot/tree/wip/obbardc/rauc-efibootguard\n> which is from https://github.com/rauc/rauc/pull/1450\n> \n> I planned to submit that example to buildroot in a follow-up patchset\n> too, once the RAUC side is a bit further.\n> \n\nThanks for explaining, makes sense to me!\n\nJan","headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org 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