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CISS.debian.installer/func/3200_partitioning.sh
2025-06-25 17:28:11 +02:00

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#!/bin/bash
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-06-17; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.installer.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <msw@coresecret.dev>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.installer
# SPDX-Security-Contact: security@coresecret.eu
#######################################
# Function that generates each partition on each device according to the chosen recipe string.
# Globals:
# ERR_PARTITIONTBL
# ERR_READ_PARTTBL
# HMP_UUID_PARTITION
# RECIPE_STRING
# VAR_RECIPE_TABLE
# VAR_SETUP_PART
# Arguments:
# None
#######################################
partitioning() {
### Declare Arrays and Variables.
declare -Ag HMP_UUID_PARTITION
declare var_dev var_part var_begin var_end var_fs var_boot var_pri var_uuid
### Iterate over all devices in the recipe.
for var_dev in $(yq e ".recipe.${VAR_RECIPE_STRING}.dev | keys | .[]" "${VAR_SETUP_PART}"); do
### All current data for the respective device will be deleted.
blkdiscard "/dev/${var_dev}" \
|| { do_log "fatal" "false" "Partition table deletion '/dev/${var_dev}' failed."; exit "${ERR_READ_PARTTBL}"; }
do_log "info" "false" "Partition table of '/dev/${var_dev}' discarded."
if [[ "${VAR_RECIPE_TABLE}" == "gpt" ]]; then
parted -s "/dev/${var_dev}" mklabel gpt \
|| { do_log "fatal" "false" "Partition table creation '/dev/${var_dev}' failed."; exit "${ERR_READ_PARTTBL}"; }
do_log "info" "false" "Partition table '${VAR_RECIPE_TABLE}' of '/dev/${var_dev}' generated."
elif [[ "${VAR_RECIPE_TABLE}" == "mbr" ]]; then
parted -s "/dev/${var_dev}" mklabel mbr \
|| { do_log "fatal" "false" "Partition table creation '/dev/${var_dev}' failed."; exit "${ERR_READ_PARTTBL}"; }
do_log "info" "false" "Partition table '${VAR_RECIPE_TABLE}' of '/dev/${var_dev}' generated."
else
do_log "fatal" "false" "No valid partition table chosen. String was '${VAR_RECIPE_TABLE}'."
exit "${ERR_PARTITIONTBL}"
fi
### Iterate over all partitions for this device.
for var_part in $(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev} | keys | .[]" "${VAR_SETUP_PART}"); do
### Extract parameters from YAML.
var_begin=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.begin" "${VAR_SETUP_PART}")
var_end=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.end" "${VAR_SETUP_PART}")
var_fs=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.filesystem.version" "${VAR_SETUP_PART}")
var_boot=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.bootable" "${VAR_SETUP_PART}")
var_pri=$(yq e ".recipe.${VAR_RECIPE_STRING}.dev.${var_dev}.${var_part}.primary" "${VAR_SETUP_PART}")
### Generate partition.
if [[ "${var_end}" == "-1" ]]; then
parted -s /dev/"${var_dev}" mkpart "${var_pri}" "${var_fs}" "${var_begin}" "100%" \
|| { do_log "fatal" "false" "Partition creation '/dev/${var_dev}${var_part}' failed."; exit "${ERR_READ_PARTTBL}"; }
do_log "info" "false" "Partition generated: '${var_part}' | on device '/dev/${var_dev}' | begin: '${var_begin}' | end: 100 % of remaining disk."
else
parted -s /dev/"${var_dev}" mkpart "${var_pri}" "${var_fs}" "${var_begin}" "${var_end}" \
|| { do_log "fatal" "false" "Partition creation '/dev/${var_dev}${var_part}' failed."; exit "${ERR_READ_PARTTBL}"; }
do_log "info" "false" "Partition generated: '${var_part}' | on device '/dev/${var_dev}' | begin: '${var_begin}' | end: '${var_end}'."
fi
### Set the bootable flag if necessary.
if [[ "${var_boot,,}" == "true" ]]; then
parted -s "/dev/${var_dev}" set "${var_part}" boot on
do_log "info" "false" "Partition: '/dev/${var_dev}${var_part}' marked as bootable."
fi
### Read UUID of the newly created partition
var_uuid=$(blkid -s UUID -o value "/dev/${var_dev}${var_part}")
if [[ -z "${var_uuid}" ]]; then
do_log "fatal" "false" "WARNING: could not read UUID for '/dev/${var_dev}${var_part}'."
exit "${ERR_READ_PARTTBL}"
else
### Store UUID in an associative array.
HMP_UUID_PARTITION["UUID_${var_dev}${var_part}"]="${var_uuid}"
do_log "info" "false" "Saved in HashMap HMP_UUID_PARTITION: 'UUID_${var_dev}${var_part}' -> '${var_uuid}'."
fi
done
done
}
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh