diff --git a/release/Makefile.vm b/release/Makefile.vm
--- a/release/Makefile.vm
+++ b/release/Makefile.vm
@@ -37,8 +37,8 @@
 GCE_FORMAT=	raw
 GCE_FSLIST=	ufs zfs
 GCE_DESC=	Google Compute Engine image
-OCI_FORMAT=	qcow2
-OCI_FSLIST=	ufs
+OCI_FORMAT=	raw
+OCI_FSLIST=	ufs zfs
 OCI_DESC=	Oracle Cloud Infrastructure image
 OPENSTACK_FORMAT=qcow2
 OPENSTACK_FSLIST=	ufs
diff --git a/release/tools/oci.conf b/release/tools/oci.conf
--- a/release/tools/oci.conf
+++ b/release/tools/oci.conf
@@ -27,7 +27,7 @@
     "
 
 # Should be enough for base image, image can be resized in needed
-export VMSIZE=6g
+export VMSIZE=8g
 
 # Set to a list of third-party software to enable in rc.conf(5).
 export VM_RC_LIST="