Marc S. Weidner
60374476ab
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
64 lines
2.2 KiB
Bash
64 lines
2.2 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-11-12; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: LicenseRef-CNCL-1.1 OR LicenseRef-CCLA-1.1
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.live.builder
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# SPDX-Security-Contact: security@coresecret.eu
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set -Ceuo pipefail
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printf "\e[95m++++ ++++ ++++ ++++ ++++ ++++ ++ 🧪 '%s' starting ... \e[0m\n" "${0}"
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VAR_DATE="$(date +%F)"
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cat << EOF >| /etc/systemd/system/ciss-remount-root.service
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: ${VAR_DATE}; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: LicenseRef-CNCL-1.1 OR LicenseRef-CCLA-1.1
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.live.builder
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# SPDX-Security-Contact: security@coresecret.eu
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[Unit]
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Description=Remount overlay root with nosuid,nodev
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DefaultDependencies=no
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After=local-fs.target
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Before=basic.target
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[Service]
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Type=oneshot
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ExecStart=/bin/mount -o remount,nosuid,nodev /
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[Install]
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WantedBy=sysinit.target
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
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EOF
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mkdir -p /etc/systemd/system/tmp.mount.d
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cat << EOF >| /etc/systemd/system/tmp.mount.d/override.conf
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[Mount]
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Options=mode=1777,strictatime,nosuid,nodev,noexec,size=1%
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EOF
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mkdir -p /etc/systemd/system/dev-shm.mount.d
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cat << EOF >| /etc/systemd/system/dev-shm.mount.d/override.conf
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[Mount]
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Options=mode=1777,nosuid,nodev,noexec,size=25%
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EOF
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systemctl enable ciss-remount-root.service
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printf "\e[92m++++ ++++ ++++ ++++ ++++ ++++ ++ ✅ '%s' applied successfully. \e[0m\n" "${0}"
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exit 0
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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