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[185.136.65.225]) by gmr-mx.google.com with ESMTPS id 38308e7fff4ca-387068d6304si6558531fa.4.2026.02.18.20.12.54 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 18 Feb 2026 20:12:54 -0800 (PST) Received-SPF: pass (google.com: domain of fm-1328765-2026021904125333f71223cb00020732-obxttk@rts-flowmailer.siemens.com designates 185.136.65.225 as permitted sender) client-ip=185.136.65.225; Received: by mta-65-225.siemens.flowmailer.net with ESMTPSA id 2026021904125333f71223cb00020732 for ; Thu, 19 Feb 2026 05:12:53 +0100 From: "'Badrikesh Prusty' via isar-users" To: isar-users@googlegroups.com Cc: Badrikesh Prusty Subject: [PATCH v2 1/1] installer: fix race condition with multiple consoles running unattended Date: Wed, 18 Feb 2026 23:12:34 -0500 Message-ID: <20260219041235.441664-2-badrikesh.prusty@siemens.com> In-Reply-To: <20260219041235.441664-1-badrikesh.prusty@siemens.com> References: <20260219041235.441664-1-badrikesh.prusty@siemens.com> 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=fm2 header.b=aoxK4QHC; spf=pass (google.com: domain of fm-1328765-2026021904125333f71223cb00020732-obxttk@rts-flowmailer.siemens.com designates 185.136.65.225 as permitted sender) smtp.mailfrom=fm-1328765-2026021904125333f71223cb00020732-oBXTTK@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: P4rYPA1GIsGB * Add lockfile `/run/installer.lock` to prevent simultaneous unattended installs across multiple consoles. * Add progress monitoring for installations started in another console via progress pipe. * Periodically check if bmaptool is still running when progress pipe is unavailable and continue once bmaptool completes. * Use /run/installer.fifo for progress_pipe instead of /tmp/progress This resolves the race condition between consoles and prevents issues with long-running or partially completed installations. Signed-off-by: Badrikesh Prusty --- .../files/usr/bin/deploy-image-wic.sh | 43 ++++++++++++++----- 1 file changed, 32 insertions(+), 11 deletions(-) diff --git a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh index 9c041a50..9a69fde5 100755 --- a/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh +++ b/meta-isar/recipes-installer/deploy-image/files/usr/bin/deploy-image-wic.sh @@ -231,13 +231,15 @@ version_ge() { fi } -if ! $installer_unattended; then +lockfile="/run/installer.lock" +progress_pipe="/run/installer.fifo" + +exec 9>"$lockfile" +if flock -n 9; then # Get bmap-tools version bmap_version=$(bmaptool --version | awk '{ print $NF }') if version_ge "$bmap_version" "3.6"; then - # Create a named pipe for progress communication - progress_pipe="/tmp/progress" if ! mkfifo "$progress_pipe"; then echo "Error: Failed to create named pipe $progress_pipe" exit 1 @@ -259,16 +261,35 @@ if ! $installer_unattended; then gauge_pid=$! fi -fi -if ! bmaptool $quiet_flag copy $bmap_options "$installer_image_uri" "$installer_target_dev"; then - kill "$gauge_pid" - exit 1 -fi + if ! bmaptool $quiet_flag copy $bmap_options "$installer_image_uri" "$installer_target_dev"; then + kill "$gauge_pid" + exit 1 + fi + + # Attempt to terminate the gauge process if still running. + # Errors are ignored since the process may already have exited. + kill "$gauge_pid" 2>/dev/null +else + echo "Installation already running in another console." + + # Wait for running console to create the progress pipe + sleep 2 -# Attempt to terminate the gauge process if still running. -# Errors are ignored since the process may already have exited. -kill "$gauge_pid" 2>/dev/null + # Check if progress pipe exists and has content + if [ -e "$progress_pipe" ]; then + echo "Installation progress..." + tail -f "$progress_pipe" | while read line; do + printf "\r%s%%" "$line" + done + else + # Periodically check if bmaptool is still running every 5 seconds + echo "Waiting for installation to finish..." + while pgrep -x "bmaptool" > /dev/null; do + sleep 5 + done + fi +fi if ! $installer_unattended; then dialog --title "Reboot" \ -- 2.39.5 -- You received this message because you are subscribed to the Google Groups "isar-users" group. 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