Marc S. Weidner
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
85 lines
2.3 KiB
Bash
85 lines
2.3 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-10-11; 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: EUPL-1.2 OR LicenseRef-CCLA-1.0
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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" "${0}"
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declare var_dm="" var_unit_dir="" var_link="/etc/systemd/system/default.target"
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### Regenerate the initramfs for the live system kernel.
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update-initramfs -u -k all -v
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### Determine the canonical systemd unit dir inside chroot.
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if [[ -d /lib/systemd/system ]]; then
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var_unit_dir=/lib/systemd/system
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elif [[ -d /usr/lib/systemd/system ]]; then
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var_unit_dir=/usr/lib/systemd/system
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fi
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### Enforce 'default.target' -> 'multi-user.target' as a symlink.
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if [[ -e "${var_link}" ]] && [[ ! -L "${var_link}" ]]; then
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### A regular file here is wrong; we remove it to avoid vendor fallback to graphical.
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rm -f -- "${var_link}"
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fi
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if [[ ! -L "${var_link}" ]]; then
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ln -s "${var_unit_dir}/multi-user.target" "${var_link}"
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else
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### Ensure it points to multi-user.
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# shellcheck disable=SC2312
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if [[ "$(readlink -f "${var_link}")" != "${var_unit_dir}/multi-user.target" ]]; then
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rm -f -- "${var_link}"
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ln -s "${var_unit_dir}/multi-user.target" "${var_link}"
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fi
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fi
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### Hard-block any display manager (mask via /dev/null symlink). Include common DMs, and the generic alias:
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ary_dm_units=(
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"display-manager.service"
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"gdm.service"
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"gdm3.service"
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"sddm.service"
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"lightdm.service"
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"xdm.service"
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"lxdm.service"
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"slim.service"
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)
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for var_dm in "${ary_dm_units[@]}"; do
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if [[ ! -L "/etc/systemd/system/${var_dm}" ]]; then
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ln -s /dev/null "/etc/systemd/system/${var_dm}"
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fi
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done
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rm -f /root/ciss_xdg_tmp.sh
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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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