diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index 4ee962442..ffde1149f 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -121,9 +121,14 @@ cc_binary {
     shared_libs: [
         "libbootloader_message",
         "libbase",
+        "libcutils",
         "libcrypto",
+        "libext4_utils",
         "libfec",
         "libfs_mgr",
+        "liblog",
+        "liblp",
+        "libselinux",
     ],
     header_libs: [
         "libcutils_headers",
diff --git a/fs_mgr/fs_mgr_overlayfs.cpp b/fs_mgr/fs_mgr_overlayfs.cpp
index e46e49760..71c4072e5 100644
--- a/fs_mgr/fs_mgr_overlayfs.cpp
+++ b/fs_mgr/fs_mgr_overlayfs.cpp
@@ -646,6 +646,25 @@ bool fs_mgr_overlayfs_make_scratch(const std::string& scratch_device, const std:
     return true;
 }
 
+static void TruncatePartitionsWithSuffix(MetadataBuilder* builder, const std::string& suffix) {
+    auto& dm = DeviceMapper::Instance();
+
+    // Remove <other> partitions
+    for (const auto& group : builder->ListGroups()) {
+        for (const auto& part : builder->ListPartitionsInGroup(group)) {
+            const auto& name = part->name();
+            if (!android::base::EndsWith(name, suffix)) {
+                continue;
+            }
+            if (dm.GetState(name) != DmDeviceState::INVALID && !DestroyLogicalPartition(name, 2s)) {
+                continue;
+            }
+            builder->ResizePartition(builder->FindPartition(name), 0);
+        }
+    }
+}
+
+// This is where we find and steal backing storage from the system.
 bool fs_mgr_overlayfs_create_scratch(const Fstab& fstab, std::string* scratch_device,
                                      bool* partition_exists, bool* change) {
     *scratch_device = fs_mgr_overlayfs_scratch_device();
@@ -692,15 +711,24 @@ bool fs_mgr_overlayfs_create_scratch(const Fstab& fstab, std::string* scratch_de
             // the adb remount overrides :-( .
             auto margin_size = uint64_t(3 * 256 * 1024);
             BlockDeviceInfo info;
-            if (builder->GetBlockDeviceInfo(partition_name, &info)) {
+            if (builder->GetBlockDeviceInfo(fs_mgr_get_super_partition_name(slot_number), &info)) {
                 margin_size = 3 * info.logical_block_size;
             }
             partition_size = std::max(std::min(kMinimumSize, partition_size - margin_size),
                                       partition_size / 2);
             if (partition_size > partition->size()) {
                 if (!builder->ResizePartition(partition, partition_size)) {
-                    LERROR << "resize " << partition_name;
-                    return false;
+                    // Try to free up space by deallocating partitions in the other slot.
+                    TruncatePartitionsWithSuffix(builder.get(), fs_mgr_get_other_slot_suffix());
+
+                    partition_size =
+                            builder->AllocatableSpace() - builder->UsedSpace() + partition->size();
+                    partition_size = std::max(std::min(kMinimumSize, partition_size - margin_size),
+                                              partition_size / 2);
+                    if (!builder->ResizePartition(partition, partition_size)) {
+                        LERROR << "resize " << partition_name;
+                        return false;
+                    }
                 }
                 if (!partition_create) DestroyLogicalPartition(partition_name, 10s);
                 changed = true;
diff --git a/fs_mgr/fs_mgr_remount.cpp b/fs_mgr/fs_mgr_remount.cpp
index cbe2008a0..00334bc9b 100644
--- a/fs_mgr/fs_mgr_remount.cpp
+++ b/fs_mgr/fs_mgr_remount.cpp
@@ -249,6 +249,7 @@ int main(int argc, char* argv[]) {
 
     // Check verity and optionally setup overlayfs backing.
     auto reboot_later = false;
+    auto user_please_reboot_later = false;
     auto uses_overlayfs = fs_mgr_overlayfs_valid() != OverlayfsValidResult::kNotSupported;
     for (auto it = partitions.begin(); it != partitions.end();) {
         auto& entry = *it;
@@ -262,7 +263,7 @@ int main(int argc, char* argv[]) {
                             false);
                     avb_ops_user_free(ops);
                     if (ret) {
-                        LOG(WARNING) << "Disable verity for " << mount_point;
+                        LOG(WARNING) << "Disabling verity for " << mount_point;
                         reboot_later = can_reboot;
                         if (reboot_later) {
                             // w/o overlayfs available, also check for dedupe
@@ -272,20 +273,22 @@ int main(int argc, char* argv[]) {
                             }
                             reboot(false);
                         }
+                        user_please_reboot_later = true;
                     } else if (fs_mgr_set_blk_ro(entry.blk_device, false)) {
                         fec::io fh(entry.blk_device.c_str(), O_RDWR);
                         if (fh && fh.set_verity_status(false)) {
-                            LOG(WARNING) << "Disable verity for " << mount_point;
+                            LOG(WARNING) << "Disabling verity for " << mount_point;
                             reboot_later = can_reboot;
                             if (reboot_later && !uses_overlayfs) {
                                 ++it;
                                 continue;
                             }
+                            user_please_reboot_later = true;
                         }
                     }
                 }
             }
-            LOG(ERROR) << "Skipping " << mount_point;
+            LOG(ERROR) << "Skipping " << mount_point << " for remount";
             it = partitions.erase(it);
             continue;
         }
@@ -307,6 +310,10 @@ int main(int argc, char* argv[]) {
 
     if (partitions.empty()) {
         if (reboot_later) reboot(false);
+        if (user_please_reboot_later) {
+            LOG(INFO) << "Now reboot your device for settings to take effect";
+            return 0;
+        }
         LOG(WARNING) << "No partitions to remount";
         return retval;
     }
@@ -383,6 +390,10 @@ int main(int argc, char* argv[]) {
     }
 
     if (reboot_later) reboot(false);
+    if (user_please_reboot_later) {
+        LOG(INFO) << "Now reboot your device for settings to take effect";
+        return 0;
+    }
 
     return retval;
 }