Marc S. Weidner
c4fc603d5b
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
416 lines
9.6 KiB
Bash
416 lines
9.6 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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#######################################
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# Get all NIC drivers of the current Host machine.
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# Globals:
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# None
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# Arguments:
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# None
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# Returns:
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# 0: on success
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#######################################
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grep_nic_driver_modules() {
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declare _mods
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### Gather all Driver and sort unique.
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# shellcheck disable=SC2312
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readarray -t _mods < <(
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lspci -k \
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| grep -A2 -i ethernet \
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| grep 'Kernel driver in use' \
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| awk '{print $5}' \
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| sort -u
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)
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declare nic_module
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declare nic_modules
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if [[ "${#_mods[@]}" -eq 1 ]]; then
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nic_module="${_mods[0]}"
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echo "${nic_module}"
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else
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nic_modules="${_mods[*]}"
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echo "${nic_modules}"
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fi
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return 0
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}
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export DEBIAN_FRONTEND="noninteractive"
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apt-get install -y intel-microcode amd64-microcode
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# shellcheck disable=SC2155
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declare nic_driver="$(grep_nic_driver_modules)"
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cat << EOF >| /etc/initramfs-tools/modules
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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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# List of modules that you want to include in your initramfs.
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# They will be loaded at boot time in the order below.
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#
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# Syntax: module_name [args ...]
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#
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# You must run update-initramfs(8) to effect this change.
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#
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# Examples:
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#
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# raid1
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# sd_mod
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### Load AppArmor early:
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apparmor
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### Entropy source for '/dev/random':
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jitterentropy_rng
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rng_core
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### Live-ISO-Stack:
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loop
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squashfs
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overlay
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### Main btrfs-Stack:
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btrfs
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lzo
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xor
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xxhash
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zstd
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zstd_compress
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### Main ext4-Stack:
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ext4
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jbd2
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libcrc32c
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### Main VFAT/ESP/FAT/UEFI-Stack:
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exfat
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fat
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nls_ascii
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nls_cp437
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nls_iso8859-1
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nls_iso8859-15
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nls_utf8
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vfat
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### Device mapper, encryption & integrity:
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dm_mod
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dm_crypt
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dm_integrity
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dm_verity
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### Main cryptography-Stack:
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aes_generic
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blake2b_generic
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crc32c_generic
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cryptd
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libcrc32c
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sha256_generic
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sha512_generic
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xts
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### QEMU Bochs-compatible virtual machine support:
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bochs
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### RAID6 parity generation module:
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raid6_pq
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### Combined RAID4/5/6 support module:
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raid456
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### SCSI/SATA-Stack:
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sd_mod
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sr_mod
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sg
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ahci
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libahci
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ata_generic
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libata
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scsi_mod
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scsi_dh_alua
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### NVMe-Stack:
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nvme
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nvme_core
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### USB-Stack:
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xhci_pci
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xhci_hcd
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ehci_pci
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ohci_pci
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uhci_hcd
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usb_storage
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uas
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### Virtual-Machines-Stack:
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virtio_pci
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virtio_blk
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virtio_scsi
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virtio_rng
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virtio_console
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### Network Driver Host-machine:
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"${nic_driver}"
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EOF
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cat << 'EOF' >| /etc/initramfs-tools/update-initramfs.conf
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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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#
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# The Configuration file for update-initramfs(8)
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#
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#
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# update_initramfs [ yes | all | no ]
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#
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# Default is yes
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# If set to all update-initramfs will update all initramfs
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# If set to no disables any update to initramfs besides kernel upgrade
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update_initramfs=yes
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#
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# backup_initramfs [ yes | no ]
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#
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# Default is no
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# If set to no leaves no .bak backup files.
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backup_initramfs=no
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EOF
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cat << 'EOF' >| /etc/initramfs-tools/initramfs.conf
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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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#
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# initramfs.conf
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# Configuration file for mkinitramfs(8). See initramfs.conf(5).
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#
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# Note that configuration options from this file can be overridden
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# by config files in the /etc/initramfs-tools/conf.d directory.
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#
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# MODULES: [ most | netboot | dep | list ]
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#
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# most - Add most filesystem and all hard-drive drivers.
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#
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# dep - Try and guess that module to load.
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#
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# netboot - Add the base modules, network modules, but skip block devices.
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#
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# list - Only include modules from the 'additional modules' list
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#
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MODULES=most
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#
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# BUSYBOX: [ y | n | auto ]
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#
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# Use busybox shell and utilities. If set to n, klibc utilities will be used.
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# If set to auto (or unset), busybox will be used if installed and klibc will
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# be used otherwise.
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#
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BUSYBOX=auto
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#
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# KEYMAP: [ y | n ]
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#
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# Load a keymap during the initramfs stage.
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#
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KEYMAP=n
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#
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# COMPRESS: [ gzip | bzip2 | lz4 | lzma | lzop | xz | zstd ]
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#
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COMPRESS=zstd
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#
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# COMPRESSLEVEL: ...
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#
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# Set a compression level for the compressor.
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# Defaults vary by compressor.
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#
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# Valid values are:
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# 1-9 for gzip|bzip2|lzma|lzop
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# 0-9 for lz4|xz
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# 0-19 for zstd
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# COMPRESSLEVEL=3
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#
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# DEVICE: ...
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#
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# Specify a specific network interface, like eth0
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# Overridden by optional ip= or BOOTIF= bootarg
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#
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DEVICE=
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#
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# NFSROOT: [ auto | HOST:MOUNT ]
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#
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NFSROOT=auto
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#
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# RUNSIZE: ...
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#
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# The size of the /run tmpfs mount point, like 256M or 10%
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# Overridden by optional initramfs.runsize= bootarg
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#
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RUNSIZE=10%
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#
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# FSTYPE: ...
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#
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# The filesystem type(s) to support, or "auto" to use the current root
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# filesystem type
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#
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FSTYPE=auto
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EOF
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cat << 'EOF' >> /etc/initramfs-tools/hooks/ciss_debian_live_builder
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#!/bin/sh
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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 -e
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PREREQ=""
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prereqs() { echo "$PREREQ"; }
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case $1 in
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prereqs) prereqs; exit 0 ;;
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esac
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. /usr/share/initramfs-tools/hook-functions
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mkdir -p "${DESTDIR}/bin" "${DESTDIR}/usr/bin" "${DESTDIR}/usr/local/bin"
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# Include Bash
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copy_exec /usr/bin/bash /usr/bin
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# Include lsblk (block device information tool)
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copy_exec /usr/bin/lsblk /usr/bin
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# Include udevadm (udev management tool)
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copy_exec /usr/bin/udevadm /usr/bin
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EOF
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chmod 0755 /etc/initramfs-tools/hooks/ciss_debian_live_builder
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#######################################
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# Simple error terminal logger.
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# Arguments:
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# None
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#######################################
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log(){ printf '[kbd-fix] %s\n' "$*" >&2; }
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log "Ensuring required packages…"
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export DEBIAN_FRONTEND=noninteractive
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apt-get install -y --no-install-recommends keyboard-configuration console-setup xkb-data pciutils xkbcomp
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log "Writing /etc/default/keyboard"
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rm -f /etc/default/keyboard
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cat << 'EOF' >| /etc/default/keyboard
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XKBMODEL="pc105"
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XKBLAYOUT="de"
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XKBVARIANT=""
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XKBOPTIONS=""
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BACKSPACE="guess"
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EOF
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### Remove remaps & stale caches.
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rm -f /etc/console-setup/remap.inc /etc/console-setup/*remap* 2>/dev/null || true
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rm -f /etc/console-setup/cached*.kmap.gz 2>/dev/null || true
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### Rebuild the cached console keymap (cache used at boot, avoids runtime warnings).
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LANG=C.UTF-8 setupcon --save-only --force --keyboard-only || true
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### Validate (do not fail to build on known harmless 'Unknown X keysym' warnings).
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err="$(mktemp)"
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if ! LANG=C.UTF-8 ckbcomp -model pc105 -layout de -variant '' -option '' >/dev/null 2>|"${err}"; then
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printf '[kbd-fix] ERROR: ckbcomp failed hard:\n' >&2
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sed -n '1,200p' "${err}" >&2
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exit 127
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fi
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if grep -q 'Unknown X keysym "dead_belowmacron"' "${err}"; then
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printf '[kbd-fix] WARN: ignoring xkb warning: Unknown X keysym "dead_belowmacron"\n' >&2
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fi
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rm -f "${err}"
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# Ensure keyboard-setup runs late enough on live systems
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install -d /etc/systemd/system/keyboard-setup.service.d
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cat > /etc/systemd/system/keyboard-setup.service.d/10-after-localfs.conf <<'EOF'
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[Unit]
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After=local-fs.target
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EOF
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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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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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