it should now work again:D

app/src/main/java/org/andbootmgr/app/CreatePartFlow.kt

@@ -895,7 +895,7 @@ private fun Flash(c: CreatePartDataHolder) {
 	val vm = c.vm
 	Terminal(vm, logFile = "install_${System.currentTimeMillis()}.txt") { terminal ->
 		if (c.t == null) { // OS install
-			val parts = ArrayMap<Int, String>()
+			val parts = ArrayMap<Int, Int>()
 			val fn = c.t2.value
 			val gn = c.t3.value
 			terminal.add(vm.activity.getString(R.string.term_f_name, fn))
@@ -920,7 +920,7 @@ private fun Flash(c: CreatePartDataHolder) {
 					entry["dtbo"] = "$fn/dtbo.dtbo"
 				entry["options"] = c.cmdline
 				entry["xtype"] = c.rtype
-				entry["xpart"] = parts.values.join(":")
+				entry["xpart"] = parts.values.joinToString(":")
 				if (c.dmaMeta.contains("updateJson") && c.dmaMeta["updateJson"] != null)
 					entry["xupdate"] = c.dmaMeta["updateJson"]!!
 				entry.exportToFile(File(vm.logic.abmEntries, "$fn.conf"))
@@ -935,7 +935,7 @@ private fun Flash(c: CreatePartDataHolder) {
 					val j = c.idVals.indexOf(i)
 					terminal.add(vm.activity.getString(R.string.term_flashing_s, i))
 					val f = c.chosen[i]!!
-					val tp = File(meta.dumpKernelPartition(j).path)
+					val tp = File(meta.dumpKernelPartition(parts[j]!!).path)
 					if (c.sparseVals[j]) {
 						val f2 = f.toFile(c.vm)
 						val result2 = Shell.cmd(
@@ -1004,7 +1004,7 @@ private fun Flash(c: CreatePartDataHolder) {
 					if (r.out.join("\n").contains("kpartx")) {
 						terminal.add(vm.activity.getString(R.string.term_reboot_asap))
 					}
-					parts[it] = c.meta!!.nid.toString()
+					parts[it] = c.meta!!.nid
 					c.meta = SDUtils.generateMeta(c.vm.deviceInfo!!)
 					if (it + 1 < c.count.intValue) {
 						c.p = c.meta!!.s.find { it1 -> it1.type == SDUtils.PartitionType.FREE && (offset + k) < it1.startSector } as SDUtils.Partition.FreeSpace

app/src/main/java/org/andbootmgr/app/DeviceInfo.kt

@@ -41,10 +41,9 @@ interface DeviceInfo {
 abstract class MetaOnSdDeviceInfo : DeviceInfo {
 	override val metaonsd: Boolean = true
 	override fun isInstalled(logic: DeviceLogic): Boolean {
-		return SuFile.open(bdev).exists() && run {
-			val meta = SDUtils.generateMeta(this)
-			meta?.let { (meta.p.isNotEmpty()) && (meta.dumpKernelPartition(0).type == SDUtils.PartitionType.RESERVED) } == true
-		}
+		return SuFile.open(bdev).exists() && SDUtils.generateMeta(this)?.let { meta ->
+			meta.p.isNotEmpty() && meta.dumpKernelPartition(1).type == SDUtils.PartitionType.RESERVED
+		} == true
 	}
 	override fun isCorrupt(logic: DeviceLogic): Boolean {
 		return !SuFile.open(logic.abmDb, "db.conf").exists()
@@ -53,7 +52,7 @@ abstract class MetaOnSdDeviceInfo : DeviceInfo {
 		if (SuFile.open(bdev).exists())
 			SDUtils.generateMeta(this)?.let { meta ->
 				if (meta.p.isNotEmpty()) {
-					val part = meta.dumpKernelPartition(0)
+					val part = meta.dumpKernelPartition(1)
 					if (part.type == SDUtils.PartitionType.RESERVED)
 						return part.path
 				}

app/src/main/java/org/andbootmgr/app/DeviceLogic.kt

@@ -19,6 +19,7 @@ class DeviceLogic(ctx: Context) {
 	fun mountBootset(d: DeviceInfo): Boolean {
 		if (checkMounted()) return true
 		val ast = d.getAbmSettings(this) ?: return false
+		if (!abmBootset.exists()) abmBootset.mkdir()
 		val result = Shell
 			.cmd("mount $ast ${abmBootset.absolutePath}")
 			.exec()

app/src/main/java/org/andbootmgr/app/MainActivity.kt

@@ -146,8 +146,19 @@ class MainActivity : ComponentActivity() {
 					Shell.getShell { shell ->
 						vm.root = shell.isRoot
 						vm.deviceInfo = HardcodedDeviceInfoFactory.get(Build.DEVICE)
+						// == temp migration code start ==
+						if (Shell.cmd("mountpoint -q /data/abm/bootset").exec().isSuccess) {
+							Shell.cmd("umount /data/abm/bootset").exec()
+						}
+						SuFile.open("/data/abm").let {
+							if (it.exists())
+								Shell.cmd("rm -rf /data/abm").exec()
+						}
+						// == temp migration code end ==
 						if (vm.deviceInfo != null && vm.deviceInfo!!.isInstalled(vm.logic!!)) {
 							vm.logic!!.mountBootset(vm.deviceInfo!!)
+						} else {
+							Log.i("ABM", "not installed, not trying to mount")
 						}
 						if (vm.deviceInfo != null) {
 							vm.isOk = ((vm.deviceInfo!!.isInstalled(vm.logic!!)) &&

app/src/main/java/org/andbootmgr/app/UpdateDroidBootFlow.kt

@@ -54,7 +54,7 @@ private fun Flash(vm: WizardActivityState) {
 		val f = SuFile.open(vm.deviceInfo!!.blBlock)
 		if (!f.canWrite())
 			terminal.add(vm.activity.getString(R.string.term_cant_write_bl))
-		vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), File(vm.logic.abmDir, "backup2_lk.img"))
+		vm.copyPriv(SuFileInputStream.open(vm.deviceInfo.blBlock), File(vm.logic.fileDir, "backup2_lk.img"))
 		try {
 			vm.copyPriv(vm.flashStream(flashType), File(vm.deviceInfo.blBlock))
 		} catch (e: IOException) {

app/src/main/java/org/andbootmgr/app/util/SDUtils.kt

@@ -6,6 +6,7 @@ import org.andbootmgr.app.DeviceInfo
 import org.andbootmgr.app.join
 import java.util.*
 import java.util.stream.Collectors
+import kotlin.jvm.optionals.getOrElse
 
 object SDUtils {
 
@@ -306,7 +307,8 @@ object SDUtils {
 
 		// Get partition by kernel id
 		fun dumpKernelPartition(id: Int): Partition {
-			return p.stream().filter { it.id == id }.findFirst().get()
+			return p.stream().filter { it.id == id }.findFirst().getOrElse {
+				throw IllegalArgumentException("no such partition with id $id, have: ${this.p}") }
 		}
 	}
 }