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Schaffner" To: CC: , , , , Tobias Schaffner Subject: [PATCH v2] expand-on-first-boot: wait for udev to create symlink Date: Fri, 9 Dec 2022 11:35:40 +0100 Message-ID: <20221209103540.13429-1-tobias.schaffner@siemens.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [139.21.146.184] X-ClientProxiedBy: DEMCHDC8WBA.ad011.siemens.net (139.25.226.105) To DEMCHDC8WAA.ad011.siemens.net (139.25.226.104) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB5EUR01FT094:EE_|DB8PR10MB3689:EE_ X-MS-Office365-Filtering-Correlation-Id: 8f2e9ad3-2f2a-4988-1af5-08dad9d128cd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:194.138.21.76;CTRY:DE;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:hybrid.siemens.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(39860400002)(396003)(376002)(346002)(136003)(451199015)(46966006)(36840700001)(40470700004)(478600001)(47076005)(8936002)(26005)(8676002)(70206006)(70586007)(186003)(4326008)(36860700001)(40460700003)(16526019)(86362001)(336012)(82310400005)(1076003)(41300700001)(36756003)(2616005)(956004)(83380400001)(6916009)(54906003)(82960400001)(40480700001)(6666004)(5660300002)(81166007)(356005)(107886003)(316002)(2906002)(82740400003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: siemens.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Dec 2022 10:35:58.1487 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8f2e9ad3-2f2a-4988-1af5-08dad9d128cd X-MS-Exchange-CrossTenant-Id: 38ae3bcd-9579-4fd4-adda-b42e1495d55a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=38ae3bcd-9579-4fd4-adda-b42e1495d55a;Ip=[194.138.21.76];Helo=[hybrid.siemens.com] X-MS-Exchange-CrossTenant-AuthSource: DB5EUR01FT094.eop-EUR01.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB8PR10MB3689 X-Original-Sender: tobias.schaffner@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=selector2 header.b=M3T17qAP; arc=pass (i=1 spf=pass spfdomain=siemens.com dmarc=pass fromdomain=siemens.com); spf=pass (google.com: domain of tobias.schaffner@siemens.com designates 40.107.21.56 as permitted sender) smtp.mailfrom=tobias.schaffner@siemens.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=siemens.com 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=-0.8 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,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-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= From: Tobias Schaffner systemd-growfs depends on a symlink to the partition of the filesystem that should be resized. This symlink is created by udev in /dev/block/. If this symlink is not yet created for example because systemd-udev is not up yet systemd-growfs will fail. We could use Require and After to depend on the systemd-udev service but this could again create a race condition if udev is up but not fast enough after the partx -u. Run systemd-growfs periodically until the symlink appears. --- .../files/expand-last-partition.sh | 30 +++++++++++++++++-- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh index 57055cc..c5f96ec 100755 --- a/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh +++ b/meta/recipes-support/expand-on-first-boot/files/expand-last-partition.sh @@ -79,7 +79,31 @@ if [ ! -d "${MOUNT_POINT}" ]; then exit 1 fi +# Send message to stdout, unmount mountpoint and exit. +# $1 The message that should be send to stdout +# $2 The mount point that should be unmounted +# $3 The exit code that shout be used on exit +growfs_cleanup_and_exit () { + echo $1 + umount $2 + rmdir $2 + exit $3 +} + mount "${LAST_PART}" "${MOUNT_POINT}" -/lib/systemd/systemd-growfs "${MOUNT_POINT}" -umount "${MOUNT_POINT}" -rmdir "${MOUNT_POINT}" + +# If systemd-udevd if not up yet or was not fast enough the symlinks in +# /dev/block/ might be missing. Retry in that case. +# This retry logic is only needed up to systemd-version 252 +for run in $(seq 0 50); do + if GROWFS_OUTPUT=$(/lib/systemd/systemd-growfs "${MOUNT_POINT}" 2>&1); then + growfs_cleanup_and_exit "${GROWFS_OUTPUT}" "${MOUNT_POINT}" 0 + else: + if ! echo ${GROWFS_OUTPUT} | grep -q "^Failed to open \"/dev/block/.*\": No such file or directory$"; then + growfs_cleanup_and_exit "${GROWFS_OUTPUT}" "${MOUNT_POINT}" 1 + fi + fi + sleep 0.1 +done +growfs_cleanup_and_exit "${GROWFS_OUTPUT}" "${MOUNT_POINT}" 1 +