Merge branch 'calamares' into fixup-partition

CHANGES-3.3

@@ -24,8 +24,11 @@ This release contains contributions from (alphabetically by first name):
  - Branding entries use ${var} instead of @{var} for substitutions,
    in line with all the other substitution mechanisms used from C++
    core. See documentation in `branding.desc`.
- - Boost::Python requires at least version 1.72
- - KDE Frameworks must be version 5.58 or later
+ - Boost::Python requires at least version 1.72.
+ - KDE Frameworks must be version 5.58 or later.
+ - The `INSTALL_CONFIG` option has been removed. If you are installing
+   the example configuration files from the Calamares repository, just
+   stop. That was never a good idea, and you should keep your configs elsewhere.
 
 ## Modules ##
  - *dracut* added a configurable kernel name. (thanks Anke)
@@ -35,7 +38,9 @@ This release contains contributions from (alphabetically by first name):
  - *netinstall* now has a new *noncheckable* option for groups, which prevent
    it a group from being checked/uncheckd as a whole. You can still check
    individual items **in** the group though. (thanks Shivanand)
-- *partition* can now pick LUKS or LUKS2. (thanks Jeremy)
+ - *partition* can now pick LUKS or LUKS2. (thanks Jeremy)
+ - *zfs* creates a hostid through zgenhostid.
+ - *zfshostid* new module to copy zfs generated /etc/hostid
 
 
 # 3.3.0-alpha2 (2022-08-23)

CMakeLists.txt

@@ -73,7 +73,6 @@ set(CALAMARES_SOVERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}")
 
 ### OPTIONS
 #
-option(INSTALL_CONFIG "Install configuration files" OFF)
 option(INSTALL_POLKIT "Install Polkit configuration" ON)
 option(INSTALL_COMPLETION "Install shell completions" OFF)
 # When adding WITH_* that affects the ABI offered by libcalamares,
@@ -542,7 +541,6 @@ add_subdirectory(src)
 
 add_feature_info(Python ${WITH_PYTHON} "Python job modules")
 add_feature_info(Qml ${WITH_QML} "QML UI support")
-add_feature_info(Config ${INSTALL_CONFIG} "Install Calamares configuration")
 add_feature_info(Polkit ${INSTALL_POLKIT} "Install Polkit files")
 add_feature_info(KCrash ${BUILD_KF5Crash} "Crash dumps via KCrash")
 
@@ -587,10 +585,6 @@ install(
 ### Miscellaneous installs
 #
 #
-if(INSTALL_CONFIG)
-    install(FILES settings.conf DESTINATION share/calamares)
-endif()
-
 if(INSTALL_POLKIT)
     install(FILES com.github.calamares.calamares.policy DESTINATION "${POLKITQT-1_POLICY_FILES_INSTALL_DIR}")
 endif()
@@ -607,7 +601,9 @@ install(FILES calamares.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/application
 
 install(FILES man/calamares.8 DESTINATION ${CMAKE_INSTALL_MANDIR}/man8/)
 
-# uninstall target
+### Uninstall
+#
+#
 configure_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
     "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
@@ -617,6 +613,17 @@ configure_file(
 
 add_custom_target(uninstall COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
 
+### Developer convenience
+#
+# The module support files -- .desc files, .conf files -- are copied into the build
+# directory so that it is possible to run `calamares -d` from there. Copy the
+# top-level settings.conf as well, into the build directory.
+if( settings.conf IS_NEWER_THAN ${CMAKE_BINARY_DIR}/settings.conf )
+    configure_file(settings.conf ${CMAKE_BINARY_DIR}/settings.conf COPYONLY)
+endif()
+
+
+
 ### CMAKE SUMMARY REPORT
 #
 get_directory_property(SKIPPED_MODULES DIRECTORY src/modules DEFINITION LIST_SKIPPED_MODULES)

CMakeModules/CalamaresAddModuleSubdirectory.cmake

@@ -153,12 +153,10 @@ function( _calamares_add_module_subdirectory_impl )
 
                     get_filename_component( FLEXT ${MODULE_FILE} EXT )
                     if( "${FLEXT}" STREQUAL ".conf" )
-                        if( INSTALL_CONFIG )
-                            install( FILES ${CMAKE_CURRENT_BINARY_DIR}/${SUBDIRECTORY}/${MODULE_FILE}
-                                    DESTINATION ${MODULE_DATA_DESTINATION} )
-                        endif()
+                        message(STATUS "Config ${MODULE_FILE}")
                         list( APPEND MODULE_CONFIG_FILES ${MODULE_FILE} )
                     else()
+                        message(STATUS "Non-Config ${MODULE_FILE}")
                         install( FILES ${CMAKE_CURRENT_BINARY_DIR}/${SUBDIRECTORY}/${MODULE_FILE}
                                  DESTINATION ${MODULE_DESTINATION} )
                     endif()
@@ -169,12 +167,7 @@ function( _calamares_add_module_subdirectory_impl )
             message( "   ${Green}TYPE:${ColorReset} jobmodule" )
             message( "   ${Green}MODULE_DESTINATION:${ColorReset} ${MODULE_DESTINATION}" )
             if( MODULE_CONFIG_FILES )
-                if ( INSTALL_CONFIG )
-                    set( _destination "${MODULE_DATA_DESTINATION}" )
-                else()
-                    set( _destination "[Build directory only]" )
-                endif()
-                message( "   ${Green}CONFIGURATION_FILES:${ColorReset} ${MODULE_CONFIG_FILES} => ${_destination}" )
+                message( "   ${Green}CONFIGURATION_FILES:${ColorReset} ${MODULE_CONFIG_FILES} => [Build directory only]" )
             endif()
             message( "" )
             # We copy over the lang directory, if any

CMakeModules/CalamaresAddPlugin.cmake

@@ -104,10 +104,7 @@ function( calamares_add_plugin )
             message( FATAL_ERROR "${Red}NO_CONFIG${ColorReset} is set, with configuration ${Red}${PLUGIN_CONFIG_FILES}${ColorReset}" )
         endif()
         set( _destination "(unknown)" )
-        if ( INSTALL_CONFIG AND NOT PLUGIN_NO_INSTALL )
-            set( _destination "${PLUGIN_DATA_DESTINATION}" )
-        elseif( NOT PLUGIN_NO_INSTALL )
-            # Not INSTALL_CONFIG
+        if( NOT PLUGIN_NO_INSTALL )
             set( _destination "[Build directory only]" )
         else()
             set( _destination "[Skipping installation]" )
@@ -210,17 +207,12 @@ function( calamares_add_plugin )
 
         set( _warned_config OFF )
         foreach( PLUGIN_CONFIG_FILE ${PLUGIN_CONFIG_FILES} )
-            if( ${CMAKE_CURRENT_SOURCE_DIR}/${PLUGIN_CONFIG_FILE} IS_NEWER_THAN ${CMAKE_CURRENT_BINARY_DIR}/${PLUGIN_CONFIG_FILE} OR INSTALL_CONFIG )
+            if( ${CMAKE_CURRENT_SOURCE_DIR}/${PLUGIN_CONFIG_FILE} IS_NEWER_THAN ${CMAKE_CURRENT_BINARY_DIR}/${PLUGIN_CONFIG_FILE} )
                 configure_file( ${PLUGIN_CONFIG_FILE} ${PLUGIN_CONFIG_FILE} COPYONLY )
             else()
                 message( "   ${BoldYellow}Not updating${ColorReset} ${PLUGIN_CONFIG_FILE}" )
                 set( _warned_config ON )
             endif()
-            if ( INSTALL_CONFIG )
-                install(
-                    FILES ${CMAKE_CURRENT_BINARY_DIR}/${PLUGIN_CONFIG_FILE}
-                    DESTINATION ${PLUGIN_DATA_DESTINATION} )
-            endif()
         endforeach()
         if ( _warned_config )
             message( "" )

README.md

@@ -7,8 +7,8 @@
 
 [![Current issue](https://img.shields.io/badge/issue-in_progress-FE9B48)](https://github.com/calamares/calamares/labels/hacking%3A%20in-progress)
 [![GitHub release](https://img.shields.io/github/release/calamares/calamares.svg)](https://github.com/calamares/calamares/releases)
-[![GitHub Build Status](https://img.shields.io/github/workflow/status/calamares/calamares/ci?label=GH%20build)](https://github.com/calamares/calamares/actions?query=workflow%3Aci)
-[![GitHub license](https://img.shields.io/github/license/calamares/calamares.svg)](https://github.com/calamares/calamares/blob/calamares/LICENSES/GPL-3.0-or-later.txt)
+[![GitHub Build Status](https://img.shields.io/github/actions/workflow/status/calamares/calamares/push.yml)](https://github.com/calamares/calamares/actions?query=workflow%3Aci)
+[![GitHub license](https://img.shields.io/badge/license-Multiple-green)](https://github.com/calamares/calamares/tree/calamares/LICENSES)
 
 
 | [Report a Bug](https://github.com/calamares/calamares/issues/new) | [Translate](https://www.transifex.com/projects/p/calamares/) | [Contribute](CONTRIBUTING.md) | [Matrix: #calamares:kde.org](https://webchat.kde.org/#/room/%23calamares:kde.org) | [IRC: Libera.Chat #calamares](https://kiwiirc.com/client/irc.libera.chat/#calamares) | [Wiki](https://github.com/calamares/calamares/wiki) |

settings.conf

@@ -140,6 +140,7 @@ sequence:
 #  - luksopenswaphookcfg
 #  - dracutlukscfg
 #  - plymouthcfg
+#  - zfshostid
   - initcpiocfg
   - initcpio
   - users

src/modules/displaymanager/displaymanager.conf

@@ -59,3 +59,11 @@ basicSetup: false
 # *displaymanagers* list (as the only one).
 #
 sysconfigSetup: false
+
+# Some DMs have specific settings. These can be customized here.
+#
+# greetd has configurable user and group; the user and group is created if it
+# does not exist, and the user is set as default-session user.
+greetd:
+  greeter_user: "tom_bombadil"
+  greeter_group: "wheel"

src/modules/displaymanager/displaymanager.schema.yaml

@@ -20,3 +20,10 @@ properties:
         required: [ executable, desktopFile ]
     basicSetup: { type: boolean, default: false }
     sysconfigSetup: { type: boolean, default: false }
+    greetd:
+        type: object
+        properties:
+            greeter_user: { type: string }
+            greeter_group: { type: string }
+        additionalProperties: false
+

src/modules/displaymanager/main.py

@@ -828,7 +828,7 @@ class DMgreetd(DisplayManager):
 
         de_command = default_desktop_environment.executable
         if os.path.exists(self.os_path("usr/bin/gtkgreet")) and os.path.exists(self.os_path("usr/bin/cage")):
-            self.config_data['default_session']['command'] = "cage -s -- gtkgreet"
+            self.config_data['default_session']['command'] = "cage -d -s -- gtkgreet"
         elif os.path.exists(self.os_path("usr/bin/tuigreet")):
             tuigreet_base_cmd = "tuigreet --remember --time --issue --asterisks --cmd "
             self.config_data['default_session']['command'] = tuigreet_base_cmd + de_command
@@ -983,6 +983,11 @@ def run():
     # Do the actual configuration and collect messages
     dm_setup_message = []
     for dm in dm_impl:
+        dm_specific_configuration = libcalamares.job.configuration.get(dm.name, None)
+        if dm_specific_configuration and isinstance(dm_specific_configuration, dict):
+            for k, v in dm_specific_configuration.items():
+                if hasattr(dm, k):
+                    setattr(dm, k, v)
         dm_message = None
         if enable_basic_setup:
             dm_message = dm.basic_setup()

src/modules/dracut/dracut.conf

@@ -5,6 +5,6 @@
 ---
 # Dracut defaults to setting initramfs-<kernel-version>.img
 # If you want to specify another filename for the resulting image,
-# set a custom kernel name, including the path
+# set a custom name, including the path
 #
-# kernelName: /boot/initramfs-linux.img
+initramfsName: /boot/initramfs-freebsd.img

src/modules/dracut/dracut.schema.yaml

@@ -6,4 +6,4 @@ $id: https://calamares.io/schemas/dracut
 additionalProperties: false
 type: object
 properties:
-    kernelName: { type: string }
+    initramfsName: { type: string }

src/modules/dracut/main.py

@@ -12,9 +12,10 @@
 #
 #   Calamares is Free Software: see the License-Identifier above.
 #
+import subprocess
 
 import libcalamares
-from libcalamares.utils import check_target_env_call
+from libcalamares.utils import target_env_process_output
 
 
 import gettext
@@ -34,12 +35,20 @@ def run_dracut():
 
     :return:
     """
-    kernelName = libcalamares.job.configuration['kernelName']
+    try:
+        initramfs_name = libcalamares.job.configuration['initramfsName']
+        target_env_process_output(['dracut', '-f', initramfs_name])
+    except KeyError:
+        try:
+            target_env_process_output(['dracut', '-f'])
+        except subprocess.CalledProcessError as cpe:
+            libcalamares.utils.warning(f"Dracut failed with output: {cpe.output}")
+            return cpe.returncode
+    except subprocess.CalledProcessError as cpe:
+        libcalamares.utils.warning(f"Dracut failed with output: {cpe.output}")
+        return cpe.returncode
 
-    if not kernelName:
-        return check_target_env_call(['dracut', '-f'])
-    else:
-        return check_target_env_call(['dracut', '-f', '{}'.format(kernelName)])
+    return 0
 
 
 def run():
@@ -50,7 +59,6 @@ def run():
     :return:
     """
     return_code = run_dracut()
-
     if return_code != 0:
-        return (_("Failed to run dracut on the target"),
-                _("The exit code was {}").format(return_code))
+        return (_("Failed to run dracut"),
+                _(f"Dracut failed to run on the target with return code: {return_code}"))

src/modules/grubcfg/grubcfg.conf

@@ -46,3 +46,6 @@ defaults:
     GRUB_DISABLE_SUBMENU: true
     GRUB_TERMINAL_OUTPUT: "console"
     GRUB_DISABLE_RECOVERY: true
+
+# Set to true to force defaults to be used even when not overwriting
+always_use_defaults: false

src/modules/grubcfg/grubcfg.schema.yaml

@@ -19,4 +19,5 @@ properties:
             GRUB_DISABLE_SUBMENU: { type: boolean, default: true }
             GRUB_TERMINAL_OUTPUT: { type: string }
             GRUB_DISABLE_RECOVERY: { type: boolean, default: true }
-        required: [ GRUB_TIMEOUT, GRUB_DEFAULT, GRUB_TERMINAL_OUTPUT ]
+        required: [ GRUB_TIMEOUT, GRUB_DEFAULT ]
+    always_use_defaults: { type: boolean, default: false }

src/modules/grubcfg/main.py

@@ -14,6 +14,7 @@
 #
 
 import libcalamares
+import fileinput
 import os
 import re
 
@@ -85,6 +86,30 @@ def get_zfs_root():
     return None
 
 
+def update_existing_config(default_grub, grub_config_items):
+    """
+    Updates the existing grub configuration file with any items present in @p grub_config_items
+
+    Items that exist in the file will be updated and new items will be appended to the end
+
+    :param default_grub: The absolute path to the grub config file
+    :param grub_config_items: A dict holding the key value pairs representing the items
+    """
+    for line in fileinput.input(default_grub, inplace=True):
+        line = line.strip()
+        if "=" in line:
+            # This may be a key, strip the leading comment if it has one
+            key = line.lstrip("#").split("=")[0].strip()
+
+            # check if this is one of the keys we care about
+            if key in grub_config_items.keys():
+                print(f"{key}={grub_config_items[key]}")
+            else:
+                print(line)
+        else:
+            print(line)
+
+
 def modify_grub_default(partitions, root_mount_point, distributor):
     """
     Configures '/etc/default/grub' for hibernation and plymouth.
@@ -103,7 +128,7 @@ def modify_grub_default(partitions, root_mount_point, distributor):
     :return:
     """
     default_grub = get_grub_config_path(root_mount_point)
-    distributor_replace = distributor.replace("'", "'\\''")
+    distributor = distributor.replace("'", "'\\''")
     dracut_bin = libcalamares.utils.target_env_call(
         ["sh", "-c", "which dracut"]
         )
@@ -125,7 +150,7 @@ def modify_grub_default(partitions, root_mount_point, distributor):
     zfs_root_path = None
 
     for partition in partitions:
-        if partition["mountPoint"] in ("/", "/boot") and partition["fs"] in ("btrfs", "f2fs"):
+        if partition["mountPoint"] in ("/", "/boot") and partition["fs"] in ("btrfs", "f2fs", "zfs"):
             no_save_default = True
             break
 
@@ -190,63 +215,46 @@ def modify_grub_default(partitions, root_mount_point, distributor):
     if swap_outer_mappername:
         kernel_params.append(f"resume=/dev/mapper/{swap_outer_mappername}")
 
-    if "overwrite" in libcalamares.job.configuration:
-        overwrite = libcalamares.job.configuration["overwrite"]
-    else:
-        overwrite = False
+    overwrite = libcalamares.job.configuration.get("overwrite", False)
 
-    distributor_line = f"GRUB_DISTRIBUTOR='{distributor_replace}'"
-    kernel_cmd = f'GRUB_CMDLINE_LINUX_DEFAULT="{" ".join(kernel_params)}"'
-    have_kernel_cmd = False
-    have_distributor_line = False
+    grub_config_items = {}
+    # read the lines we need from the existing config
     if os.path.exists(default_grub) and not overwrite:
         with open(default_grub, 'r') as grub_file:
             lines = [x.strip() for x in grub_file.readlines()]
 
-        for i in range(len(lines)):
-            if lines[i].startswith("#GRUB_CMDLINE_LINUX_DEFAULT"):
-                lines[i] = kernel_cmd
-                have_kernel_cmd = True
-            elif lines[i].startswith("GRUB_CMDLINE_LINUX_DEFAULT"):
-                regex = re.compile(r"^GRUB_CMDLINE_LINUX_DEFAULT\s*=\s*")
-                line = regex.sub("", lines[i])
-                line = line.lstrip()
-                line = line.lstrip("\"")
-                line = line.lstrip("'")
-                line = line.rstrip()
-                line = line.rstrip("\"")
-                line = line.rstrip("'")
-                existing_params = line.split()
+        for line in lines:
+            if line.startswith("GRUB_CMDLINE_LINUX_DEFAULT"):
+                existing_params = re.sub(r"^GRUB_CMDLINE_LINUX_DEFAULT\s*=\s*", "", line).strip("\"'").split()
 
                 for existing_param in existing_params:
-                    existing_param_name = existing_param.split("=")[0]
+                    existing_param_name = existing_param.split("=")[0].strip()
 
-                    # the only ones we ever add
-                    if existing_param_name not in [
-                            "quiet", "resume", "splash"]:
+                    # Ensure we aren't adding duplicated params
+                    param_exists = False
+                    for param in kernel_params:
+                        if param.split("=")[0].strip() == existing_param_name:
+                            param_exists = True
+                            break
+                    if not param_exists and existing_param_name not in ["quiet", "resume", "splash"]:
                         kernel_params.append(existing_param)
 
-                lines[i] = kernel_cmd
-                have_kernel_cmd = True
-            elif (lines[i].startswith("#GRUB_DISTRIBUTOR")
-                  or lines[i].startswith("GRUB_DISTRIBUTOR")):
-                if libcalamares.job.configuration.get("keep_distributor", False):
-                    lines[i] = distributor_line
-                    have_distributor_line = True
-                else:
-                    # We're not updating because of *keep_distributor*, but if
-                    # this was a comment line, then it's still not been set.
-                    have_distributor_line = have_distributor_line or not lines[i].startswith("#")
-            # If btrfs or f2fs is used, don't save default
-            if no_save_default and lines[i].startswith("GRUB_SAVEDEFAULT="):
-                lines[i] = "#GRUB_SAVEDEFAULT=\"true\""
-    else:
-        lines = []
+            elif line.startswith("GRUB_DISTRIBUTOR") and libcalamares.job.configuration.get("keep_distributor", False):
+                distributor_parts = line.split("=")
+                if len(distributor_parts) > 1:
+                    distributor = distributor_parts[1].strip("'\"")
 
+            # If a filesystem grub can't write to is used, disable save default
+            if no_save_default and line.strip().startswith("GRUB_SAVEDEFAULT"):
+                grub_config_items["GRUB_SAVEDEFAULT"] = "false"
+
+    always_use_defaults = libcalamares.job.configuration.get("always_use_defaults", False)
+
+    # If applicable add the items from defaults to the dict containing the grub config to wirte/modify
+    if always_use_defaults or overwrite or not os.path.exists(default_grub):
         if "defaults" in libcalamares.job.configuration:
-            for key, value in libcalamares.job.configuration[
-                    "defaults"].items():
-                if value.__class__.__name__ == "bool":
+            for key, value in libcalamares.job.configuration["defaults"].items():
+                if isinstance(value, bool):
                     if value:
                         escaped_value = "true"
                     else:
@@ -254,19 +262,20 @@ def modify_grub_default(partitions, root_mount_point, distributor):
                 else:
                     escaped_value = str(value).replace("'", "'\\''")
 
-                lines.append(f"{key}='{escaped_value}'")
+                grub_config_items[key] = f"'{escaped_value}'"
 
-    if not have_kernel_cmd:
-        lines.append(kernel_cmd)
-
-    if not have_distributor_line:
-        lines.append(distributor_line)
+    grub_config_items['GRUB_CMDLINE_LINUX_DEFAULT'] = f"'{' '.join(kernel_params)}'"
+    grub_config_items["GRUB_DISTRIBUTOR"] = f"'{distributor}'"
 
     if cryptdevice_params and not unencrypted_separate_boot:
-        lines.append("GRUB_ENABLE_CRYPTODISK=y")
+        grub_config_items["GRUB_ENABLE_CRYPTODISK"] = "y"
 
-    with open(default_grub, 'w') as grub_file:
-        grub_file.write("\n".join(lines) + "\n")
+    if overwrite or not os.path.exists(default_grub) or libcalamares.job.configuration.get("prefer_grub_d", False):
+        with open(default_grub, 'w') as grub_file:
+            for key, value in grub_config_items.items():
+                grub_file.write(f"{key}={value}\n")
+    else:
+        update_existing_config(default_grub, grub_config_items)
 
     return None
 

src/modules/initcpiocfg/main.py

@@ -147,6 +147,7 @@ def find_initcpio_features(partitions, root_mount_point):
         "base",
         "udev",
         "autodetect",
+        "kms",
         "modconf",
         "block",
         "keyboard",

src/modules/mount/main.py

@@ -294,13 +294,13 @@ def mount_partition(root_mount_point, partition, partitions, mount_options, moun
         # Mount the subvolumes
         swap_subvol = libcalamares.job.configuration.get("btrfsSwapSubvol", "/@swap")
         for s in btrfs_subvolumes:
-            mount_option = "subvol={}".format(s['subvolume'])
             if s['subvolume'] == swap_subvol:
-                mount_option += "," + get_mount_options("btrfs_swap", mount_options, partition)
+                mount_option_no_subvol = get_mount_options("btrfs_swap", mount_options, partition)
             else:
-                mount_option += "," + get_mount_options(fstype, mount_options, partition)
+                mount_option_no_subvol = get_mount_options(fstype, mount_options, partition)
+            mount_option = f"subvol={s['subvolume']},{mount_option_no_subvol}"
             subvolume_mountpoint = mount_point[:-1] + s['mountPoint']
-            mount_options_list.append({"mountpoint": s['mountPoint'], "option_string": mount_option})
+            mount_options_list.append({"mountpoint": s['mountPoint'], "option_string": mount_option_no_subvol})
             if libcalamares.utils.mount(device,
                                         subvolume_mountpoint,
                                         fstype,

src/modules/partition/Config.cpp

@@ -242,7 +242,7 @@ Config::setSwapChoice( Config::SwapChoice c )
 void
 Config::setEraseFsTypeChoice( const QString& choice )
 {
-    QString canonicalChoice = PartUtils::canonicalFilesystemName( choice, nullptr );
+    const QString canonicalChoice = PartUtils::canonicalFilesystemName( choice, nullptr );
     if ( canonicalChoice != m_eraseFsTypeChoice )
     {
         m_eraseFsTypeChoice = canonicalChoice;
@@ -250,6 +250,17 @@ Config::setEraseFsTypeChoice( const QString& choice )
     }
 }
 
+void
+Config::setReplaceFilesystemChoice( const QString& filesystemName )
+{
+    const QString canonicalChoice = PartUtils::canonicalFilesystemName( filesystemName, nullptr );
+    if ( canonicalChoice != m_replaceFileSystemChoice )
+    {
+        m_replaceFileSystemChoice = canonicalChoice;
+        Q_EMIT replaceModeFilesystemChanged( canonicalChoice );
+    }
+}
+
 bool
 Config::acceptPartitionTableType( PartitionTable::TableType tableType ) const
 {
@@ -281,8 +292,8 @@ fillGSConfigurationEFI( Calamares::GlobalStorage* gs, const QVariantMap& configu
             gs->insert( "efiSystemPartitionSize_i", part_size.toBytes() );
 
             // Assign long long int to long unsigned int to prevent compilation warning
-            size_t unsigned_part_size = part_size.toBytes();
-            if ( unsigned_part_size != PartUtils::efiFilesystemMinimumSize() )
+            auto byte_part_size = part_size.toBytes();
+            if ( byte_part_size != PartUtils::efiFilesystemMinimumSize() )
             {
                 cWarning() << "EFI partition size" << sizeString << "has been adjusted to"
                            << PartUtils::efiFilesystemMinimumSize() << "bytes";
@@ -367,7 +378,9 @@ Config::fillConfigurationFSTypes( const QVariantMap& configurationMap )
     Q_ASSERT( !m_eraseFsTypes.isEmpty() );
     Q_ASSERT( m_eraseFsTypes.contains( fsRealName ) );
     m_eraseFsTypeChoice = fsRealName;
+    m_replaceFileSystemChoice = fsRealName;
     Q_EMIT eraseModeFilesystemChanged( m_eraseFsTypeChoice );
+    Q_EMIT replaceModeFilesystemChanged( m_replaceFileSystemChoice );
 }
 
 void

src/modules/partition/Config.h

@@ -31,6 +31,9 @@ class Config : public QObject
     Q_PROPERTY(
         QString eraseModeFilesystem READ eraseFsType WRITE setEraseFsTypeChoice NOTIFY eraseModeFilesystemChanged )
 
+    Q_PROPERTY( QString replaceModeFilesystem READ replaceModeFilesystem WRITE setReplaceFilesystemChoice NOTIFY
+                    replaceModeFilesystemChanged )
+
     Q_PROPERTY( bool allowManualPartitioning READ allowManualPartitioning CONSTANT FINAL )
 
 public:
@@ -131,6 +134,9 @@ public:
      */
     QString eraseFsType() const { return m_eraseFsTypeChoice; }
 
+    /// @brief Currently-selected FS type for *replace* mode
+    QString replaceModeFilesystem() const { return m_replaceFileSystemChoice; }
+
     /** @brief Configured default FS type (for other modes than erase)
      *
      * This is not "Unknown" or "Unformatted"
@@ -159,17 +165,20 @@ public Q_SLOTS:
     void setSwapChoice( int );  ///< Translates a button ID or so to SwapChoice
     void setSwapChoice( SwapChoice );
     void setEraseFsTypeChoice( const QString& filesystemName );  ///< See property eraseModeFilesystem
+    void setReplaceFilesystemChoice( const QString& filesystemName );
 
 Q_SIGNALS:
     void installChoiceChanged( InstallChoice );
     void swapChoiceChanged( SwapChoice );
     void eraseModeFilesystemChanged( const QString& );
+    void replaceModeFilesystemChanged( const QString& );
 
 private:
     /** @brief Handle FS-type configuration, for erase and default */
     void fillConfigurationFSTypes( const QVariantMap& configurationMap );
     EraseFsTypesSet m_eraseFsTypes;
     QString m_eraseFsTypeChoice;
+    QString m_replaceFileSystemChoice;
     FileSystem::Type m_defaultFsType;
 
     SwapChoiceSet m_swapChoices;

src/modules/partition/gui/ChoicePage.cpp

@@ -287,6 +287,13 @@ ChoicePage::setupChoices()
             m_eraseFsTypesChoiceComboBox, &QComboBox::currentTextChanged, m_config, &Config::setEraseFsTypeChoice );
         connect( m_config, &Config::eraseModeFilesystemChanged, this, &ChoicePage::onActionChanged );
         m_eraseButton->addOptionsComboBox( m_eraseFsTypesChoiceComboBox );
+
+        // Also offer it for "replace
+        auto* box = new QComboBox;
+        box->addItems( m_config->eraseFsTypes() );
+        connect( box, &QComboBox::currentTextChanged, m_config, &Config::setReplaceFilesystemChoice );
+        connect( m_config, &Config::replaceModeFilesystemChanged, this, &ChoicePage::onActionChanged );
+        m_replaceButton->addOptionsComboBox( box );
     }
 
     m_itemsLayout->addWidget( m_alongsideButton );
@@ -302,13 +309,8 @@ ChoicePage::setupChoices()
 
     m_itemsLayout->addStretch();
 
-#if ( QT_VERSION < QT_VERSION_CHECK( 5, 15, 0 ) )
-    auto buttonSignal = QOverload< int, bool >::of( &QButtonGroup::buttonToggled );
-#else
-    auto buttonSignal = &QButtonGroup::idToggled;
-#endif
     connect( m_grp,
-             buttonSignal,
+             &QButtonGroup::idToggled,
              this,
              [ this ]( int id, bool checked )
              {
@@ -859,8 +861,8 @@ ChoicePage::doReplaceSelectedPartition( const QModelIndex& current )
                                                               selectedDevice(),
                                                               selectedPartition,
                                                               { gs->value( "defaultPartitionType" ).toString(),
-                                                                gs->value( "defaultFileSystemType" ).toString(),
-                                                                m_config->luksFileSystemType(),
+                                                                m_config->replaceModeFilesystem(),
+                                                                gs->value( "luksFileSystemType" ).toString(),
                                                                 m_encryptWidget->passphrase() } );
                         Partition* homePartition = findPartitionByPath( { selectedDevice() }, *homePartitionPath );
 
@@ -1740,5 +1742,7 @@ ChoicePage::shouldShowEncryptWidget( Config::InstallChoice choice ) const
     // If there are any choices for FS, check it's not ZFS because that doesn't
     // support the kind of encryption we enable here.
     const bool suitableFS = m_eraseFsTypesChoiceComboBox ? m_eraseFsTypesChoiceComboBox->currentText() != "zfs" : true;
-    return ( choice == InstallChoice::Erase ) && m_enableEncryptionWidget && suitableFS;
+    const bool suitableChoice
+        = choice == InstallChoice::Erase || choice == InstallChoice::Alongside || choice == InstallChoice::Replace;
+    return suitableChoice && m_enableEncryptionWidget && suitableFS;
 }

src/modules/umount/umount.conf

@@ -11,4 +11,4 @@
 ---
 # Setting emergency to true will make it so this module is still run
 # when a prior module fails
-emergency: false
+emergency: true

src/modules/zfs/ZfsJob.cpp

@@ -241,6 +241,13 @@ ZfsJob::exec()
             }
         }
 
+        // Generate the zfs hostid file
+        auto i = system->runCommand( { "zgenhostid" }, std::chrono::seconds( 3 ) );
+        if ( i.getExitCode() != 0 )
+        {
+            cWarning() << "Failed to create /etc/hostid";
+        }
+
         // Create the zpool
         ZfsResult zfsResult;
         if ( encrypt )

src/modules/zfshostid/main.py

@@ -0,0 +1,44 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# === This file is part of Calamares - <https://calamares.io> ===
+#
+#   SPDX-FileCopyrightText: 2022 Anke Boersma <demm@kaosx.us>
+#   SPDX-License-Identifier: GPL-3.0-or-later
+#
+#   Calamares is Free Software: see the License-Identifier above.
+#
+
+import os
+import shutil
+
+import libcalamares
+from libcalamares.utils import gettext_path, gettext_languages
+
+
+import gettext
+_ = gettext.translation("calamares-python",
+                        localedir=libcalamares.utils.gettext_path(),
+                        languages=libcalamares.utils.gettext_languages(),
+                        fallback=True).gettext
+
+
+def pretty_name():
+    return _("Copying zfs generated hostid.")
+
+
+def run():
+
+    zfs = libcalamares.globalstorage.value("zfsDatasets")
+    root_mount_point = libcalamares.globalstorage.value("rootMountPoint")
+
+    if zfs:
+        hostid_source = '/etc/hostid'
+        hostid_destination = '{!s}/etc/hostid'.format(root_mount_point)
+
+        try:
+            shutil.copy2(hostid_source, hostid_destination)
+        except Exception as e:
+            libcalamares.utils.warning("Could not copy hostid")
+
+    return None

src/modules/zfshostid/module.desc

@@ -0,0 +1,8 @@
+# SPDX-FileCopyrightText: no
+# SPDX-License-Identifier: CC0-1.0
+---
+type:       "job"
+name:       "zfshostid"
+interface:  "python"
+script:     "main.py"
+noconfig:   true

src/modules/zfshostid/zfshostid.schema.yaml

@@ -0,0 +1,7 @@
+# SPDX-FileCopyrightText: 2022 Anke Boersma <demm@kaosx.us>
+# SPDX-License-Identifier: GPL-3.0-or-later
+---
+$schema: https://json-schema.org/schema#
+$id: https://calamares.io/schemas/zfshostid
+additionalProperties: false
+type: object