image-tools: T5806: deactive raid arrays

(cherry picked from commit e3cd779d0bd8dd8be6231c7b2028326a03e6a06c)

2 files changed, 22 insertions, 11 deletions

diff --git a/python/vyos/system/raid.py b/python/vyos/system/raid.py
index 616d1adf7..5b33d34da 100644
--- a/python/vyos/system/raid.py
+++ b/python/vyos/system/raid.py
@@ -19,7 +19,7 @@ from pathlib import Path
 from shutil import copy
 from dataclasses import dataclass
 
-from vyos.utils.process import cmd
+from vyos.utils.process import cmd, run
 from vyos.system import disk
 
 
@@ -44,16 +44,12 @@ def raid_create(raid_members: list[str],
     """
     raid_devices_num: int = len(raid_members)
     raid_members_str: str = ' '.join(raid_members)
-    if Path('/sys/firmware/efi').exists():
-        for part in raid_members:
-            drive: str = disk.partition_parent(part)
-            command: str = f'sgdisk --typecode=3:A19D880F-05FC-4D3B-A006-743F0F84911E {drive}'
-            cmd(command)
-    else:
-        for part in raid_members:
-            drive: str = disk.partition_parent(part)
-            command: str = f'sgdisk --typecode=3:A19D880F-05FC-4D3B-A006-743F0F84911E {drive}'
-            cmd(command)
+    for part in raid_members:
+        drive: str = disk.partition_parent(part)
+        # set partition type GUID for raid member; cf.
+        # https://en.wikipedia.org/wiki/GUID_Partition_Table#Partition_type_GUIDs
+        command: str = f'sgdisk --typecode=3:A19D880F-05FC-4D3B-A006-743F0F84911E {drive}'
+        cmd(command)
     command: str = f'mdadm --create /dev/{raid_name} -R --metadata=1.0 \
         --raid-devices={raid_devices_num} --level={raid_level} \
         {raid_members_str}'
@@ -69,6 +65,20 @@ def raid_create(raid_members: list[str],
 
     return raid
 
+def clear():
+    """Deactivate all RAID arrays"""
+    command: str = 'mdadm --examine --scan'
+    raid_config = cmd(command)
+    if not raid_config:
+        return
+    command: str = 'mdadm --run /dev/md?*'
+    run(command)
+    command: str = 'mdadm --assemble --scan --auto=yes --symlink=no'
+    run(command)
+    command: str = 'mdadm --stop --scan'
+    run(command)
+
+
 def update_initramfs() -> None:
     """Update initramfs"""
     mdadm_script = '/etc/initramfs-tools/scripts/local-top/mdadm'
diff --git a/src/op_mode/image_installer.py b/src/op_mode/image_installer.py
index 9452c5e28..66ce8f2e6 100755
--- a/src/op_mode/image_installer.py
+++ b/src/op_mode/image_installer.py
@@ -179,6 +179,7 @@ def create_partitions(target_disk: str, target_size: int,
         rootfs_size: int = available_size
 
     print(MSG_INFO_INSTALL_PARTITONING)
+    raid.clear()
     disk.disk_cleanup(target_disk)
     disk_details: disk.DiskDetails = disk.parttable_create(target_disk,
                                                            rootfs_size)