Added a encrypted flag to the Partition() object. So that certain checks can be done by the Installer() later on, for instance when adding a bootloader. There's also a now which tries to find the parent device to the unlocked encrypted device.

archinstall/lib/disk.py

@@ -88,7 +88,10 @@ class Partition():
 		self.encrypted = encrypted
 
 	def __repr__(self, *args, **kwargs):
-		return f'Partition({self.path}, fs={self.filesystem}, mounted={self.mountpoint})'
+		if self.encrypted:
+			return f'Partition(path={self.path}, real_device={self.real_device}, fs={self.filesystem}, mounted={self.mountpoint})'
+		else:
+			return f'Partition(path={self.path}, fs={self.filesystem}, mounted={self.mountpoint})'
 
 	def format(self, filesystem):
 		log(f'Formatting {self} -> {filesystem}')
@@ -110,6 +113,24 @@ class Partition():
 			raise DiskError(f'Fileformat {filesystem} is not yet implemented.')
 		return True
 
+	def find_parent_of(self, data, name, parent=None):
+		if data['name'] == name:
+			return parent
+		elif 'children' in data:
+			for child in data['children']:
+				if (parent := self.find_parent_of(child, name, parent=data['name'])):
+					return parent
+
+	@property
+	def real_device(self):
+		if not self.encrypted:
+			return self.path
+		else:
+			for blockdevice in json.loads(b''.join(sys_command('lsblk -J')).decode('UTF-8'))['blockdevices']:
+				if (parent := self.find_parent_of(blockdevice, os.path.basename(self.path))):
+					return f"/dev/{parent}"
+			raise DiskError(f'Could not find appropriate parent for encrypted partition {self}')
+
 	def mount(self, target, fs=None, options=''):
 		if not self.mountpoint:
 			log(f'Mounting {self} to {target}')
@@ -124,7 +145,7 @@ class Partition():
 			if sys_command(f'/usr/bin/mount {self.path} {target}').exit_code == 0:
 				self.mountpoint = target
 				return True
-		
+
 class Filesystem():
 	# TODO:
 	#   When instance of a HDD is selected, check all usages and gracefully unmount them

archinstall/lib/installer.py

@@ -63,11 +63,11 @@ class Installer():
 			
 
 			if self.partition.encrypted:
-				print(f'Trying to locate {os.path.basename(self.partition.path)} under /dev/disk/by-partuuid')
+				print(f'Trying to locate {self.partition} under /dev/disk/by-partuuid')
 				for root, folders, uids in os.walk('/dev/disk/by-partuuid'):
 					for uid in uids:
 						real_path = os.path.realpath(os.path.join(root, uid))
-						if not os.path.basename(real_path) == os.path.basename(self.partition.path): continue
+						if not os.path.basename(real_path) == os.path.basename(self.partition.real_device): continue
 
 						entry.write(f'options cryptdevice=PARTUUID={uid}:luksdev root=/dev/mapper/luksdev rw intel_pstate=no_hwp\n')
 						return True