V8.00.000.2025.06.17
Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
This commit is contained in:
323
.archive/func/3280_mount_partition_double_loop.sh
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323
.archive/func/3280_mount_partition_double_loop.sh
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#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.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.installer
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# SPDX-Security-Contact: security@coresecret.eu
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guard_sourcing
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#######################################
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# Validates var_mount_path to be processed.
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# Arguments:
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# 1 var_mount_path
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# Returns:
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# 0: Skip mounting
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# 1: Process mount
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#######################################
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skip_path() {
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declare -a ary_skip=( "/" "/boot" "/boot/efi" "/recovery" )
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declare p=""
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for p in "${ary_skip[@]}"; do [[ "$1" == "${p}" ]] && return 0; done
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return 1
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}
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#######################################
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# Function to create the mount command, incl. mount path and options, and mount the respective device.
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# Globals:
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# ERR_MOUNTING_DEV
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# TARGET
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# Arguments:
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# 1: MOUNT_PATH
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# 2: MOUNT_DEVICE
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# 3: MOUNT_OPTIONS
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# Returns:
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# 0: on success
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#######################################
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mount_with_dir() {
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declare var_mount_path="$1" var_mount_device="$2" var_mount_options="${3:-}"
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declare -a ary_cmd=(mount)
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if [[ "${var_mount_device}" =~ ^[0-9a-fA-F-]{8,}$ ]]; then
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if [[ -e "/dev/disk/by-uuid/${var_mount_device}" ]]; then
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var_mount_device="/dev/disk/by-uuid/${var_mount_device}"
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else
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do_log "error" "file_only" "3280() FS-UUID for mount path: '${var_mount_device}' not found by '/dev/disk/by-uuid/${var_mount_device}'."
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return "${ERR_MOUNTING_DEV}"
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fi
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fi
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[[ "${var_mount_path}" != "/" ]] && mkdir -p "${TARGET}${var_mount_path}"
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### Build the command in an array to keep word boundaries intact.
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[[ -n "${var_mount_options}" ]] && ary_cmd+=("-o" "${var_mount_options}")
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ary_cmd+=("${var_mount_device}" "${TARGET}${var_mount_path}")
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safe_exec "${ary_cmd[@]}" "${ERR_MOUNTING_DEV}" || return
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do_log "debug" "file_only" "3280() [safe_exec ${ary_cmd[*]} ${ERR_MOUNTING_DEV}]."
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do_log "info" "file_only" "3280() Mounted: '${var_mount_device}' on: '${TARGET}${var_mount_path}' (Options='${var_mount_options}')."
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return 0
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}
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#######################################
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# Device Path Resolver.
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# Outputs '/dev/mapper/<encryption_label>'
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# Outputs '/dev/<dev><partition>'
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# Arguments:
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# 1: Device
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# 2: Partition
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# 3: Boolean Encryption
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# 4: Encryption Label
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#######################################
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resolve_device() {
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declare local_var_dev="$1" local_var_partition="$2" local_var_enc_boolean="$3" local_var_enc_label="$4"
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if [[ "${local_var_enc_boolean,,}" == "true" ]]; then
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printf '/dev/mapper/%s' "${local_var_enc_label}"
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else
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printf '/dev/%s%s' "${local_var_dev}" "${local_var_partition}"
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fi
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}
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#######################################
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# Validates btrfs compression algo and level.
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# Arguments:
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# 1 var_fs_btrfs_compress
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# 2 var_fs_btrfs_level
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# Returns:
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# 0: Valid combination.
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# 1: Invalid combination.
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#######################################
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validate_btrfs_compression() {
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declare var_algo="$1" var_level="$2"
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case "${var_algo}:${var_level}" in
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zstd:|zstd:[0-9]|zstd:1[0-9]|zstd:2[0-2]|lzo:) return 0 ;;
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*) do_log "error" "file_only" "3280() Invalid btrfs compression: '${var_algo}:${var_level}'"; return "${ERR_BTRFS_OPTION}" ;;
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esac
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}
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#######################################
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# Function for mounting all partitions for debootstrap, including the generation of btrfs subvolumes.
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# Globals:
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# HMP_MOUNTPATH_DEV
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# TARGET
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# VAR_RECIPE_STRING
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# VAR_SAFE_MNT_BASE
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# VAR_SETUP_PART
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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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# ERR_BTRFS_INITPH
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# ERR_BTRFS_OPTION
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# ERR_BTRFS_SUBVOL
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# ERR_MOUNTING_DEV
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# ERR_MOUNTING_ROOT
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#######################################
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mount_partition() {
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### Declare Arrays, HashMaps, and Variables.
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declare -Ag HMP_FSTAB_MOUNT_OPTS # Used in: 4040() - [Mount Path:Mount Options].
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declare -r var_mount_path_root="/"
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declare var_path="" var_dev="" var_part="" \
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var_fs_btrfs_compress="" var_fs_btrfs_level="" var_fs_btrfs_subvolume="" var_fs_btrfs_snapshot="" \
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var_encryption_enable="" var_encryption_label="" var_fs_options="" var_fs_version="" var_mount_path="" \
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var_mount_options="" var_snapshot="" var_mount_optsnap="" var_fs_uuid=""
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declare -a ary_devs=() ary_parts=()
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### Mount "/"-filesystem
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if [[ -n "${HMP_PATH_FSUUID["${var_mount_path_root}"]}" ]]; then
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mount_with_dir "${var_mount_path_root}" "${HMP_PATH_FSUUID["${var_mount_path_root}"]}" || return "${ERR_MOUNTING_DEV}"
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else
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do_log "error" "file_only" "3280() Root-filesystem '${var_mount_path_root}' not found in Hashmap: 'HMP_PATH_FSUUID'."
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return "${ERR_MOUNTING_ROOT}"
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fi
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#if [[ -n "${HMP_MOUNTPATH_DEV[${var_mount_path_root}]}" ]]; then
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# mount_with_dir "${var_mount_path_root}" "${HMP_MOUNTPATH_DEV[${var_mount_path_root}]}" || return "${ERR_MOUNTING_DEV}"
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#else
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# do_log "error" "file_only" "3280() Root-filesystem '${var_mount_path_root}' not found in Hashmap: 'HMP_MOUNTPATH_DEV'."
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# return "${ERR_MOUNTING_ROOT}"
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#fi
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### Ensure order of "/boot" and "/boot/efi"
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for var_path in "/boot" "/boot/efi"; do
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if [[ -n "${HMP_PATH_FSUUID["${var_path}"]}" ]]; then
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mount_with_dir "${var_path}" "${HMP_PATH_FSUUID["${var_path}"]}" || return "${ERR_MOUNTING_DEV}"
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else
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do_log "info" "file_only" "3280() Entry '${var_path}' not found in Hashmap: 'HMP_PATH_FSUUID'."
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fi
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done
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#for var_path in "/boot" "/boot/efi"; do
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# if [[ -n "${HMP_MOUNTPATH_DEV[${var_path}]}" ]]; then
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# mount_with_dir "${var_path}" "${HMP_MOUNTPATH_DEV[${var_path}]}" || return "${ERR_MOUNTING_DEV}"
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# else
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# do_log "info" "file_only" "3280() Entry '${var_path}' not found in Hashmap: 'HMP_MOUNTPATH_DEV'."
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# fi
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#done
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### Iterate over all devices in the recipe.
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# shellcheck disable=SC2312
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readarray -t ary_devs < <(yq e -r ".recipe.${VAR_RECIPE_STRING}.dev | keys | .[]" "${VAR_SETUP_PART}")
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for var_dev in "${ary_devs[@]}"; do
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### Iterate over all partitions for this device.
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# shellcheck disable=SC2312
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readarray -t ary_parts < <(yq e -r ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev} | keys | .[]" "${VAR_SETUP_PART}")
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for var_part in "${ary_parts[@]}"; do
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### Extract parameters from YAML.
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var_fs_btrfs_compress=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.compress" "${VAR_SETUP_PART}")
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var_fs_btrfs_level=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.level" "${VAR_SETUP_PART}")
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var_fs_btrfs_snapshot=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.btrfs.snapshot" "${VAR_SETUP_PART}")
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var_encryption_enable=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.encryption.enable" "${VAR_SETUP_PART}")
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var_fs_options=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.options" "${VAR_SETUP_PART}")
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var_fs_version=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.version" "${VAR_SETUP_PART}")
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var_mount_path=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.path" "${VAR_SETUP_PART}")
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var_mount_options=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.options" "${VAR_SETUP_PART}")
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var_mount_optsnap=$(yq_val ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.mount.optsnap" "${VAR_SETUP_PART}")
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### Skip already mounted paths ("/", "/boot", "/boot/efi") and skip ("/recovery")
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skip_path "${var_mount_path}" && continue
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var_encryption_label=$(get_label "${var_mount_path}" "${var_fs_version}" "luks")
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var_fs_uuid="${HMP_PATH_FSUUID["${var_path}"]}"
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if [[ "${var_mount_path,,}" == "swap" ]]; then
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#var_fs_label=$(get_label "${var_mount_path}" "${var_fs_version}" "file")
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cryptsetup open --type plain --key-file /dev/random \
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--offset 2048 --cipher aes-xts-plain64 --key-size 512 \
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--sector-size 4096 "/dev/disk/by-uuid/${var_fs_uuid}" "${var_encryption_label}"
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#--sector-size 4096 "/dev/disk/by-label/${var_fs_label}" "${var_encryption_label}"
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mkswap "/dev/mapper/${var_encryption_label}"
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do_log "debug" "file_only" "3280() [mkswap /dev/mapper/${var_encryption_label}]."
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swapon "/dev/mapper/${var_encryption_label}"
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do_log "debug" "file_only" "3280() [swapon /dev/mapper/${var_encryption_label}]."
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do_log "info" "file_only" "3280() Mounted: '${var_mount_path}' on: '/dev/mapper/${var_encryption_label}'."
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continue
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elif [[ "${var_mount_path,,}" == "/tmp" ]]; then
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cryptsetup open --type plain --key-file /dev/random \
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--offset 2048 --cipher aes-xts-plain64 --key-size 512 \
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--sector-size 4096 "/dev/disk/by-uuid/${var_fs_uuid}" "${var_encryption_label}"
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mkdir -p "${TARGET}/tmp"
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echo "safe_exec mkfs.ext4 -E nodiscard,lazy_itable_init=1,lazy_journal_init=1 /dev/mapper/${var_encryption_label} ${ERR_MOUNTING_DEV}"
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safe_exec mkfs.ext4 -E nodiscard,lazy_itable_init=1,lazy_journal_init=1 "/dev/mapper/${var_encryption_label}" "${ERR_MOUNTING_DEV}" || return "${ERR_MOUNTING_DEV}"
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### Build the command in an array to keep word boundaries intact
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declare -a ary_cmd2=(mount)
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ary_cmd2+=("/dev/mapper/${var_encryption_label}" "${TARGET}${var_mount_path}")
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safe_exec "${ary_cmd2[@]}" "${ERR_MOUNTING_DEV}" || return "${ERR_MOUNTING_DEV}"
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do_log "info" "file_only" "3280() Mounted: '${var_mount_path}' on: '/dev/mapper/${var_encryption_label}'."
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continue
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fi
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#var_resolved_dev=$(resolve_device "${var_dev}" "${var_part}" "${var_encryption_enable}" "${var_encryption_label}")
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if [[ "${var_fs_version,,}" == "btrfs" ]]; then
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var_fs_btrfs_subvolume=$(get_label "${var_mount_path}" "${var_fs_version}" "sub")
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### Mount toplevel (subvolid=0) without extra options.
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declare -a ary_cmd_mount=(mount -o "subvolid=0" "${var_fs_uuid}" "${VAR_SAFE_MNT_BASE}")
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safe_exec "${ary_cmd_mount[@]}" "${ERR_BTRFS_INITPH}" || return "${ERR_BTRFS_INITPH}"
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btrfs subvolume create "${VAR_SAFE_MNT_BASE}/${var_fs_btrfs_subvolume}"
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do_log "debug" "file_only" "3280() [btrfs subvolume create ${VAR_SAFE_MNT_BASE}/${var_fs_btrfs_subvolume}]."
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do_log "info" "file_only" "3280() btrfs subvolid=0 created: '${var_mount_path}' on: '/dev/mapper/${var_encryption_label}'."
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if [[ "${var_fs_btrfs_snapshot}" == "true" ]]; then
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var_snapshot=$(get_label "${var_mount_path}" "${var_fs_version}" "snap")
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btrfs subvolume create "${VAR_SAFE_MNT_BASE}/${var_snapshot}" || return "${ERR_BTRFS_SUBVOL}"
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do_log "debug" "file_only" "3280() [btrfs subvolume create ${VAR_SAFE_MNT_BASE}/${var_snapshot}]."
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do_log "info" "file_only" "3280() btrfs subvolid=${var_snapshot} created: '${var_mount_path}' on: '/dev/mapper/${var_encryption_label}'."
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fi
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umount "${VAR_SAFE_MNT_BASE}"
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do_log "info" "file_only" "3280() btrfs subvolume umount: '${var_mount_path}' on: '/dev/mapper/${var_encryption_label}'."
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fi
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case "${var_fs_version,,}:${var_encryption_enable,,}" in
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btrfs:*)
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validate_btrfs_compression "${var_fs_btrfs_compress}" "${var_fs_btrfs_level}" || return "${ERR_BTRFS_OPTION}"
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declare var_btrfs_compression_options="compress=${var_fs_btrfs_compress}:${var_fs_btrfs_level}"
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[[ -n "${var_mount_options}" ]] && var_btrfs_compression_options+=",${var_mount_options},subvol=${var_fs_btrfs_subvolume}"
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### Gathering information for '/etc/fstab'-generation in 4040().
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HMP_FSTAB_MOUNT_OPTS["${var_mount_path}"]="${var_btrfs_compression_options[*]}"
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do_log "debug" "file_only" "3280() Stored in HashMap [HMP_FSTAB_MOUNT_OPTS] : '${var_mount_path}' -> '${HMP_FSTAB_MOUNT_OPTS["${var_mount_path}"]}'."
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mount_with_dir "${var_mount_path}" "${var_fs_uuid}" "${var_btrfs_compression_options}" || return "${ERR_MOUNTING_DEV}"
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if [[ "${var_fs_btrfs_snapshot}" == "true" ]]; then
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### Preparing "/.snapshot"-directory
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mkdir -p "${TARGET}${var_mount_path}/.snapshots"
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do_log "info" "file_only" "3280() Created: '${TARGET}${var_mount_path}/.snapshots'."
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var_mount_optsnap="${var_mount_optsnap},subvol=${var_snapshot}"
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### Gathering information for '/etc/fstab'-generation in 4040().
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HMP_FSTAB_MOUNT_OPTS["${var_mount_path}/.snapshots"]="${var_mount_optsnap[*]}"
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do_log "debug" "file_only" "3280() Stored in HashMap [HMP_FSTAB_MOUNT_OPTS] : '${var_mount_path}/.snapshots' -> '${HMP_FSTAB_MOUNT_OPTS["${var_mount_path}/.snapshots"]}'."
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mount_with_dir "${var_mount_path}/.snapshots" "${var_fs_uuid}" "${var_mount_optsnap}"
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do_log "info" "file_only" "3280() Mounted: '${var_fs_uuid}' on: '${TARGET}${var_mount_path}/.snapshots' (Options='${var_mount_optsnap}')."
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fi
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;;
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ext4:*)
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mount_with_dir "${var_mount_path}" "${var_fs_uuid}" "${var_mount_options}" || return "${ERR_MOUNTING_DEV}"
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;;
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*) do_log "error" "file_only" "3280() Unsupported fs/encryption combination."
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return "${ERR_MOUNTING_DEV}" ;;
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esac
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done
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lsblk -o NAME,MAJ:MIN,FSTYPE,FSVER,SIZE,UUID,MOUNTPOINT,PATH "/dev/${var_dev}" >| "${DIR_LOG}/${var_dev}_overview_full.log"
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printf "%b" "${NL}" >> "${DIR_LOG}/${var_dev}_overview_full.log"
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lsblk "/dev/${var_dev}" >> "${DIR_LOG}/${var_dev}_overview_full.log"
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done
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return 0
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}
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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