diff --git a/ocne2/build.yml b/ocne2/build.yml
index f60a86d..410f528 100644
--- a/ocne2/build.yml
+++ b/ocne2/build.yml
@@ -9,7 +9,10 @@
     availability_domain: "{{ my_availability_domain }}"
     compartment_id: "{{ my_compartment_id }}"
     name: "{{ item.value.instance_name | default('instance-'~timestamp) }}"
-    image_id: "{{ ol_image_id }}"
+    source_details:
+      image_id: "{{ ol_image_id }}"
+      source_type: image
+      boot_volume_size_in_gbs: "{{ item.value.boot_volume_size_in_gbs | default(50) | int }}"
     shape: "{{ instance_shape }}"
     shape_config:
       ocpus: "{{ instance_ocpus }}"
@@ -77,7 +80,7 @@
 
 - name: Add block storage to an instance
   ansible.builtin.include_tasks: "block.yml"
-  loop: "{{ query('sequence', 'start=1 end='+(block_count)|string) }}"
+  loop: "{{ query('sequence', 'start=1 end=' + (block_count) | string) }}"
   loop_control:
     extended: true
   vars:
diff --git a/ocne2/default_vars.yml b/ocne2/default_vars.yml
index fc94593..b74d3ae 100644
--- a/ocne2/default_vars.yml
+++ b/ocne2/default_vars.yml
@@ -2,6 +2,7 @@ compute_instances:
   1:
     instance_name: "ocne"
     type: "server"
+    boot_volume_size_in_gbs: 50
 os: "Oracle Linux"
 os_version: "8"
 instance_shape: "VM.Standard.E4.Flex"
diff --git a/ocne2/host_setup.yml b/ocne2/host_setup.yml
index c77d367..9057c1f 100644
--- a/ocne2/host_setup.yml
+++ b/ocne2/host_setup.yml
@@ -37,6 +37,13 @@
     - name: Run facts module to get latest information
       ansible.builtin.setup:
 
+    - name: Grow the root filesystem
+      ansible.builtin.shell: |
+        /usr/libexec/oci-growfs -y
+      become: true
+      register: result
+      changed_when: result.rc == 0
+
     - name: Add user account with access to sudo
       ansible.builtin.user:
         name: "{{ username }}"