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[185.136.65.227]) by gmr-mx.google.com with ESMTPS id 4fb4d7f45d1cf-6a37f7635besi40697a12.0.2026.08.13.02.50.53 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 13 Aug 2026 02:50:53 -0700 (PDT) Received-SPF: pass (google.com: domain of fm-1047747-20260813095052e67f4a9e2a000207c7-oqrhin@rts-flowmailer.siemens.com designates 185.136.65.227 as permitted sender) client-ip=185.136.65.227; Received: by mta-65-227.siemens.flowmailer.net with ESMTPSA id 20260813095052e67f4a9e2a000207c7 for ; Thu, 13 Aug 2026 11:50:52 +0200 X-Patchwork-Original-From: "'Clara Kowalsky' via isar-users" From: Clara Kowalsky To: isar-users@googlegroups.com Cc: Clara Kowalsky Subject: [PATCH v3 2/2] meta: Generate WSL image for Windows Subsystem for Linux Date: Thu, 13 Aug 2026 11:50:29 +0200 Message-ID: <20260813095029.2294322-2-clara.kowalsky@siemens.com> In-Reply-To: <20260813095029.2294322-1-clara.kowalsky@siemens.com> References: <20260813095029.2294322-1-clara.kowalsky@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1047747:519-21489:flowmailer X-Original-Sender: clara.kowalsky@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=fm2 header.b=J0IiB0oU; spf=pass (google.com: domain of fm-1047747-20260813095052e67f4a9e2a000207c7-oqrhin@rts-flowmailer.siemens.com designates 185.136.65.227 as permitted sender) smtp.mailfrom=fm-1047747-20260813095052e67f4a9e2a000207c7-OQrhiN@rts-flowmailer.siemens.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=siemens.com X-Original-From: Clara Kowalsky Reply-To: Clara Kowalsky 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-Spam-Status: No, score=-4.9 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,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,URI_TRY_3LD 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-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= This allows to generate a `.wsl` file for Windows Subsystem for Linux, based on the tar image type. WSL uses the Windows-provided kernel, so make sure that other layers like isar-cip-core do not set the KERNEL_NAME for this machine. The wsl-config recipe ships the configuration files /etc/wsl.conf and /etc/wsl-distribution.conf as templates. See https://learn.microsoft.com/en-us/windows/wsl/build-custom-distro#create-wsl-configuration-files The variables in the configuration files can be overwritten in downstream layers: - WSL_DEFAULT_USER specifies which user runs when the WSL distro is launched. Default: "root" - WSL_DEFAULT_UID specifies the default UID used during first-run/OOBE installation. Default: "0" - WSL_DEFAULT_NAME specifies the name that the distro is registered under. Default: "${DISTRO}-${MACHINE}" Whole configuration files can be replaced or added by bbappending the wsl-config recipe. This was tested with WSL2, in plain Isar and in downstream layer. Signed-off-by: Clara Kowalsky --- doc/user_manual.md | 1 + kas/machine/Kconfig | 8 ++++ kas/machine/wsl.yaml | 7 ++++ meta-isar/conf/local.conf.sample | 3 +- meta-isar/conf/machine/wsl.conf | 13 ++++++ meta-isar/conf/mc.conf | 2 + meta-isar/conf/multiconfig/wsl-bookworm.conf | 7 ++++ meta-isar/conf/multiconfig/wsl-trixie.conf | 7 ++++ meta/classes-recipe/image.bbclass | 2 +- meta/classes-recipe/imagetypes_wsl.bbclass | 13 ++++++ .../wsl-config/files/etc/oobe.sh | 4 ++ .../files/etc/wsl-distribution.conf.tmpl | 6 +++ .../wsl-config/files/etc/wsl.conf.tmpl | 5 +++ .../wsl-config/wsl-config_0.1.bb | 41 +++++++++++++++++++ testsuite/citest.py | 18 ++++++++ testsuite/data/targets.yml | 4 ++ 16 files changed, 139 insertions(+), 2 deletions(-) create mode 100644 kas/machine/wsl.yaml create mode 100644 meta-isar/conf/machine/wsl.conf create mode 100644 meta-isar/conf/multiconfig/wsl-bookworm.conf create mode 100644 meta-isar/conf/multiconfig/wsl-trixie.conf create mode 100644 meta/classes-recipe/imagetypes_wsl.bbclass create mode 100644 meta/recipes-support/wsl-config/files/etc/oobe.sh create mode 100644 meta/recipes-support/wsl-config/files/etc/wsl-distribution.conf.tmpl create mode 100644 meta/recipes-support/wsl-config/files/etc/wsl.conf.tmpl create mode 100644 meta/recipes-support/wsl-config/wsl-config_0.1.bb diff --git a/doc/user_manual.md b/doc/user_manual.md index dcc3f560..f3b1acb9 100644 --- a/doc/user_manual.md +++ b/doc/user_manual.md @@ -514,6 +514,7 @@ Currently, the following image types are provided: - `ubi` - image for use on mtd nand partitions employing UBI - `ubifs` - raw UBI filesystem image, normally used together with UBI partitions - `ova` - Open Virtual Appliance: image for use on VirtualBox or VMware + - `wsl` - tar file for Windows Subsystem for Linux - `squashfs` - raw squashfs filesystem image - `fit` - FIT image as used by U-Boot - `oci-archive`, `docker-archive`, `docker-daemon`, `containers-storage` - see [generating container images](#generate-container-image-with-root-filesystem) diff --git a/kas/machine/Kconfig b/kas/machine/Kconfig index 1e360be6..2895368c 100644 --- a/kas/machine/Kconfig +++ b/kas/machine/Kconfig @@ -253,6 +253,13 @@ config MACHINE_HYPER_V select CODENAME_TRIXIE select ARCH_AMD64 +config MACHINE_WSL + bool "wsl" + select DISTRO_DEBIAN + select CODENAME_BOOKWORM + select CODENAME_TRIXIE + select ARCH_AMD64 + config MACHINE_X86_PC bool "x86 PC" select DISTRO_DEBIAN @@ -297,6 +304,7 @@ config KAS_INCLUDE_MACHINE default "kas/machine/virtualbox.yaml" if MACHINE_VIRTUALBOX default "kas/machine/vmware.yaml" if MACHINE_VMWARE default "kas/machine/hyper-v-amd64.yaml" if MACHINE_HYPER_V + default "kas/machine/wsl.yaml" if MACHINE_WSL default "kas/machine/x86-pc.yaml" if MACHINE_X86_PC endmenu diff --git a/kas/machine/wsl.yaml b/kas/machine/wsl.yaml new file mode 100644 index 00000000..f043b02a --- /dev/null +++ b/kas/machine/wsl.yaml @@ -0,0 +1,7 @@ +# This software is a part of Isar. +# Copyright (c) Siemens AG, 2026 + +header: + version: 14 + +machine: wsl diff --git a/meta-isar/conf/local.conf.sample b/meta-isar/conf/local.conf.sample index 9b0b3746..6e1e1546 100644 --- a/meta-isar/conf/local.conf.sample +++ b/meta-isar/conf/local.conf.sample @@ -155,8 +155,9 @@ CONF_VERSION = "1" IMAGE_INSTALL = "hello-isar example-raw example-module-${KERNEL_NAME} enable-fsck isar-exclude-docs samefile hello isar-disable-apt-cache cowsay example-prebuilt" # -# Container machines don't need example module and enable-fsck. +# Container and WSL machines don't need example module and enable-fsck. IMAGE_INSTALL:remove:container-amd64 = "example-module-${KERNEL_NAME} enable-fsck" +IMAGE_INSTALL:remove:wsl = "example-module-${KERNEL_NAME} enable-fsck" # # Machines with secure boot should use signed modules. diff --git a/meta-isar/conf/machine/wsl.conf b/meta-isar/conf/machine/wsl.conf new file mode 100644 index 00000000..b1a3b89b --- /dev/null +++ b/meta-isar/conf/machine/wsl.conf @@ -0,0 +1,13 @@ +# This software is a part of Isar. +# Copyright (C) Siemens AG, 2026 +# +# SPDX-License-Identifier: MIT + +DISTRO_ARCH ?= "amd64" + +IMAGE_FSTYPES ?= "wsl" + +# Configure rootfs for WSL boot +IMAGE_INSTALL:append = " wsl-config" +# Enable systemd-user session model +IMAGE_PREINSTALL:append = " dbus dbus-user-session" diff --git a/meta-isar/conf/mc.conf b/meta-isar/conf/mc.conf index 649430a2..df3a38b0 100644 --- a/meta-isar/conf/mc.conf +++ b/meta-isar/conf/mc.conf @@ -89,4 +89,6 @@ BBMULTICONFIG = " \ qemuamd64-sid \ qemuarm64-sid \ qemuriscv64-resolute \ + wsl-bookworm \ + wsl-trixie \ " diff --git a/meta-isar/conf/multiconfig/wsl-bookworm.conf b/meta-isar/conf/multiconfig/wsl-bookworm.conf new file mode 100644 index 00000000..5e9f3697 --- /dev/null +++ b/meta-isar/conf/multiconfig/wsl-bookworm.conf @@ -0,0 +1,7 @@ +# This software is a part of Isar. +# Copyright (C) Siemens AG, 2026 +# +# SPDX-License-Identifier: MIT + +MACHINE ?= "wsl" +DISTRO ?= "debian-bookworm" diff --git a/meta-isar/conf/multiconfig/wsl-trixie.conf b/meta-isar/conf/multiconfig/wsl-trixie.conf new file mode 100644 index 00000000..8ef796e4 --- /dev/null +++ b/meta-isar/conf/multiconfig/wsl-trixie.conf @@ -0,0 +1,7 @@ +# This software is a part of Isar. +# Copyright (C) Siemens AG, 2026 +# +# SPDX-License-Identifier: MIT + +MACHINE ?= "wsl" +DISTRO ?= "debian-trixie" diff --git a/meta/classes-recipe/image.bbclass b/meta/classes-recipe/image.bbclass index d02f99da..0329c3f8 100644 --- a/meta/classes-recipe/image.bbclass +++ b/meta/classes-recipe/image.bbclass @@ -174,7 +174,7 @@ IMAGE_BASETYPES = "${@get_image_basetypes(d)}" # image types IMAGE_CLASSES ??= "" -IMGCLASSES = "imagetypes imagetypes_wic imagetypes_vm imagetypes_container squashfs \ +IMGCLASSES = "imagetypes imagetypes_wic imagetypes_vm imagetypes_wsl imagetypes_container squashfs \ imagetypes_ddi" IMGCLASSES += "${IMAGE_CLASSES}" inherit ${IMGCLASSES} diff --git a/meta/classes-recipe/imagetypes_wsl.bbclass b/meta/classes-recipe/imagetypes_wsl.bbclass new file mode 100644 index 00000000..e216ef5d --- /dev/null +++ b/meta/classes-recipe/imagetypes_wsl.bbclass @@ -0,0 +1,13 @@ +# This software is a part of Isar. +# Copyright (C) Siemens AG, 2026 +# +# SPDX-License-Identifier: MIT + +# This class allows to generate WSL import artifacts. +# + +IMAGE_TYPEDEP:wsl = "tar" + +IMAGE_CMD:wsl() { + gzip -f -9 -n -c "${DEPLOY_DIR_IMAGE}/${IMAGE_FULLNAME}.tar" > "${IMAGE_FILE_HOST}" +} diff --git a/meta/recipes-support/wsl-config/files/etc/oobe.sh b/meta/recipes-support/wsl-config/files/etc/oobe.sh new file mode 100644 index 00000000..e9ddfd16 --- /dev/null +++ b/meta/recipes-support/wsl-config/files/etc/oobe.sh @@ -0,0 +1,4 @@ +#! /usr/bin/bash + +# Generic OOBE hook for Isar-generated WSL images +exit 0 diff --git a/meta/recipes-support/wsl-config/files/etc/wsl-distribution.conf.tmpl b/meta/recipes-support/wsl-config/files/etc/wsl-distribution.conf.tmpl new file mode 100644 index 00000000..4f83314b --- /dev/null +++ b/meta/recipes-support/wsl-config/files/etc/wsl-distribution.conf.tmpl @@ -0,0 +1,6 @@ +# See https://learn.microsoft.com/en-us/windows/wsl/build-custom-distro#add-the-wsl-distribution-configuration-file + +[oobe] +command = /etc/oobe.sh +defaultUid = ${WSL_DEFAULT_UID} +defaultName = ${WSL_DEFAULT_NAME} diff --git a/meta/recipes-support/wsl-config/files/etc/wsl.conf.tmpl b/meta/recipes-support/wsl-config/files/etc/wsl.conf.tmpl new file mode 100644 index 00000000..862ca252 --- /dev/null +++ b/meta/recipes-support/wsl-config/files/etc/wsl.conf.tmpl @@ -0,0 +1,5 @@ +[boot] +systemd=true + +[user] +default=${WSL_DEFAULT_USER} diff --git a/meta/recipes-support/wsl-config/wsl-config_0.1.bb b/meta/recipes-support/wsl-config/wsl-config_0.1.bb new file mode 100644 index 00000000..5e013013 --- /dev/null +++ b/meta/recipes-support/wsl-config/wsl-config_0.1.bb @@ -0,0 +1,41 @@ +# This software is a part of Isar. +# Copyright (C) Siemens AG, 2026 +# +# SPDX-License-Identifier: MIT + +inherit dpkg-raw + +DESCRIPTION = "WSL configuration files" +MAINTAINER = "isar-users " + +PROVIDES := "${BPN}" +DEBIAN_PROVIDES := "${BPN}" +PN .= "-${DISTRO_ARCH}" + +WSL_DEFAULT_USER ?= "root" +WSL_DEFAULT_UID ?= "0" +WSL_DEFAULT_NAME ?= "${DISTRO}-${MACHINE}" + +SRC_URI = " \ + file://etc/oobe.sh \ + file://etc/wsl.conf.tmpl \ + file://etc/wsl-distribution.conf.tmpl \ +" + +TEMPLATE_FILES = " \ + etc/wsl.conf.tmpl \ + etc/wsl-distribution.conf.tmpl \ +" +TEMPLATE_VARS += " \ + WSL_DEFAULT_USER \ + WSL_DEFAULT_UID \ + WSL_DEFAULT_NAME \ +" + +do_install[cleandirs] += "${D}/etc" + +do_install() { + install -m 0644 "${WORKDIR}/etc/wsl.conf" "${D}/etc" + install -m 0644 "${WORKDIR}/etc/wsl-distribution.conf" "${D}/etc" + install -m 0755 "${WORKDIR}/etc/oobe.sh" "${D}/etc" +} diff --git a/testsuite/citest.py b/testsuite/citest.py index fc0c7106..968f89c8 100644 --- a/testsuite/citest.py +++ b/testsuite/citest.py @@ -1333,6 +1333,24 @@ class ContainerImageTest(CIBaseTest): self.perform_build_test(targets, container=True) +class WSLImageTest(CIBaseTest): + + """ + Test WSL images creation + + :avocado: tags=wslbuild,full,wsl + """ + + def test_wsl_image(self): + targets = [ + 'mc:wsl-bookworm:isar-image-base', + 'mc:wsl-trixie:isar-image-base', + ] + + self.init() + self.perform_build_test(targets) + + class ContainerSdkTest(CIBaseTest): """ diff --git a/testsuite/data/targets.yml b/testsuite/data/targets.yml index f27ae2d7..a4474829 100644 --- a/testsuite/data/targets.yml +++ b/testsuite/data/targets.yml @@ -161,6 +161,10 @@ a: !mux name: qemuarm64-sid qemuriscv64-resolute: name: qemuriscv64-resolute + wsl-bookworm: + name: wsl-bookworm + wsl-trixie: + name: wsl-trixie b: !mux base: image: isar-image-base