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[185.136.64.226]) by gmr-mx.google.com with ESMTPS id 8926c6da1cb9f-5020493d06dsi334788173.3.2025.06.29.13.28.47 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Sun, 29 Jun 2025 13:28:47 -0700 (PDT) Received-SPF: pass (google.com: domain of fm-1328765-2025062920284405839a62e73afca1ff-j9tirb@rts-flowmailer.siemens.com designates 185.136.64.226 as permitted sender) client-ip=185.136.64.226; Received: by mta-64-226.siemens.flowmailer.net with ESMTPSA id 2025062920284405839a62e73afca1ff for ; Sun, 29 Jun 2025 22:28:45 +0200 From: "'Badrikesh Prusty' via isar-users" To: isar-users@googlegroups.com Cc: badrikesh prusty Subject: [PATCH v4] isar-installer: Mount /tmp as tmpfs for read-only boot fix Date: Sun, 29 Jun 2025 16:28:22 -0400 Message-ID: <20250629202822.10616-1-badrikesh.prusty@siemens.com> In-Reply-To: References: MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1328765:519-21489:flowmailer X-Original-Sender: badrikesh.prusty@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=fm1 header.b=ZVIKHZK4; spf=pass (google.com: domain of fm-1328765-2025062920284405839a62e73afca1ff-j9tirb@rts-flowmailer.siemens.com designates 185.136.64.226 as permitted sender) smtp.mailfrom=fm-1328765-2025062920284405839a62e73afca1ff-j9tiRB@rts-flowmailer.siemens.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=siemens.com X-Original-From: Badrikesh Prusty Reply-To: Badrikesh Prusty Content-Type: text/plain; charset="UTF-8" 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 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-TUID: j1GBqzaoUxKD From: badrikesh prusty Fix image installation when isar-image-installer rootfs is booted as read-only by ensuring /tmp is mounted as tmpfs. With the latest isar installer, Bmaptool now creates the /tmp/progress pipe to track and display installation progress in a progress bar. To mount /tmp as tmpfs, this change utilizes systemd's tmp.mount. As tmp.mount is located in /usr/share/systemd/ for systemd versions up to Debian Bookworm, and in /usr/lib/systemd/system/tmp.mount for versions 256.x and newer, the file must be copied to /etc/systemd/system/. Placing tmp.mount unit file in /etc/systemd/system/ ensures its configuration for /tmp takes precedence, overriding any entry found in /etc/fstab. Signed-off-by: badrikesh prusty --- .../deploy-image/deploy-image_0.1.bb | 6 ++++-- .../systemd-tmpfs-tmp/files/postinst | 16 ++++++++++++++++ .../systemd-tmpfs-tmp/systemd-tmpfs-tmp_0.1.bb | 13 +++++++++++++ 3 files changed, 33 insertions(+), 2 deletions(-) create mode 100644 meta-isar/recipes-installer/systemd-tmpfs-tmp/files/postinst create mode 100644 meta-isar/recipes-installer/systemd-tmpfs-tmp/systemd-tmpfs-tmp_0.1.bb diff --git a/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb b/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb index 54e521b5..b287a8d1 100644 --- a/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb +++ b/meta-isar/recipes-installer/deploy-image/deploy-image_0.1.bb @@ -10,8 +10,10 @@ inherit dpkg-raw SRC_URI = "file://usr/bin/deploy-image-wic.sh \ file://usr/lib/deploy-image-wic/handle-config.sh \ " -DEPENDS:bookworm += "bmap-tools" -DEBIAN_DEPENDS = "bmap-tools, pv, dialog, util-linux, parted, fdisk, gdisk, pigz, xz-utils, pbzip2, zstd" + +DEPENDS:append:bookworm = " bmap-tools" +DEPENDS:append = " systemd-tmpfs-tmp" +DEBIAN_DEPENDS = "bmap-tools, pv, dialog, util-linux, parted, fdisk, gdisk, pigz, systemd-tmpfs-tmp, xz-utils, pbzip2, zstd" do_install[cleandirs] = "${D}/usr/bin/ \ ${D}/usr/lib/deploy-image-wic \ " diff --git a/meta-isar/recipes-installer/systemd-tmpfs-tmp/files/postinst b/meta-isar/recipes-installer/systemd-tmpfs-tmp/files/postinst new file mode 100644 index 00000000..9d75025d --- /dev/null +++ b/meta-isar/recipes-installer/systemd-tmpfs-tmp/files/postinst @@ -0,0 +1,16 @@ +#!/bin/sh + +set -e + +DEST="/etc/systemd/system/tmp.mount" + +if [ ! -e "${DEST}" ]; then + # Possible source paths for tmp.mount + for SRC in /usr/share/systemd/tmp.mount /usr/lib/systemd/system/tmp.mount; do + # If the source file exists, copy it to the destination and exit the loop + [ -e "${SRC}" ] && cp ${SRC} ${DEST} && break + done +fi + +# Enable the mount unit using deb-systemd-helper; ignore errors if it fails +deb-systemd-helper enable tmp.mount || true diff --git a/meta-isar/recipes-installer/systemd-tmpfs-tmp/systemd-tmpfs-tmp_0.1.bb b/meta-isar/recipes-installer/systemd-tmpfs-tmp/systemd-tmpfs-tmp_0.1.bb new file mode 100644 index 00000000..c0ab1bcf --- /dev/null +++ b/meta-isar/recipes-installer/systemd-tmpfs-tmp/systemd-tmpfs-tmp_0.1.bb @@ -0,0 +1,13 @@ +# This software is a part of ISAR. +# Copyright (C) Siemens AG, 2025 +# +# SPDX-License-Identifier: MIT + +inherit dpkg-raw + +DESCRIPTION = "Configures /tmp as systemd-managed temporary filesystem (tmpfs), ensuring read-write access even if rootfs is read-only" +MAINTAINER = "isar-users " + +SRC_URI = "file://postinst" + +DEBIAN_DEPENDS = "systemd" -- 2.47.2 -- You received this message because you are subscribed to the Google Groups "isar-users" group. 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