[MultiBootManager] UBISlotManager add option for max Slots limit 1-20

Author: atvcaptain

data/setup.xml

@@ -423,6 +423,7 @@
 	</setup>
 	<setup key="UBISlotManager" title="Slot Manager">
 		<item level="0" text="Target location" description="Choose the target device for the slots.">self.UBISlotManagerLocation</item>
+		<item level="0" text="Slot count" description="Choose the amount of additional slots." conditional="self.UBISlotManagerLocation.value">self.UBISlotManagerSlots</item>
 	</setup>
 	<setup key="HardDisk" title="Hard Disk Settings" showOpenWebif="1">
 		<item level="0" text="Hard disk standby after" description="Configure the hard disk drive to go to standby after the specified idle time.">config.usage.hdd_standby</item>

lib/python/Screens/MultiBootManager.py

@@ -1017,6 +1017,7 @@ def getGreenHelpText():
 			}.get(self.green, _("Help text uninitialized"))
 
 		self.UBISlotManagerLocation = ConfigSelection(default=None, choices=[(None, _("<Select a device>"))])
+		self.UBISlotManagerSlots = ConfigInteger(default=10, limits=(1, 20))
 		self.UBISlotManagerDevice = None
 		Setup.__init__(self, session=session, setup="UBISlotManager")
 		self.setTitle(_("Slot Manager"))
@@ -1103,7 +1104,7 @@ def closeStartUpCallback(answer):
 			fd.write(startupContent)
 		with open(f"{MOUNTPOINT}/STARTUP_FLASH", "w") as fd:
 			fd.write(startupContent)
-		count = min(diskSize, 15)
+		count = min(diskSize, self.UBISlotManagerSlots.value)
 		for i in range(1, count + 1):
 			startupContent = f"kernel=/dev/{mtdKernel} root=UUID={uuidRootFS} rootsubdir=linuxrootfs{i} rootfstype=ext4\n"
 			with open(f"{MOUNTPOINT}/STARTUP_{i}", "w") as fd:
@@ -1133,6 +1134,7 @@ def deviceSelectionCallback(self, selection):
 			locations.append((path, path))
 			self.UBISlotManagerLocation.setSelectionList(default=None, choices=locations)
 			self.UBISlotManagerLocation.value = path
+			self.createSetup()
 		self.updateStatus("Selected device: %s" % self.deviceData[selection][1])
 
 	def partitionSizeGB(self, dev):