diff --git a/conf/machine/sysmocom-idu.conf b/conf/machine/sysmocom-idu.conf
index 83bd105c92..67d4bf5243 100644
--- a/conf/machine/sysmocom-idu.conf
+++ b/conf/machine/sysmocom-idu.conf
@@ -16,7 +16,8 @@ MACHINE_FEATURES += "kernel26 x86 usbhost pci acpi"
 
 KERNEL_IMAGETYPE = "bzImage"
 
-IMAGE_FSTYPES = "tar.gz ext4"
+IMAGE_FSTYPES = "ext4"
+DEFAULTTUNE="core2"
 
 SERIAL_CONSOLE = "115200 ttyS0"
 MACHINE_CONSOLE = "console=ttyS0,115200n8"
diff --git a/conf/machine/sysmocom-odu.conf b/conf/machine/sysmocom-odu.conf
index 529b6e3b70..f24cea7c91 100644
--- a/conf/machine/sysmocom-odu.conf
+++ b/conf/machine/sysmocom-odu.conf
@@ -4,7 +4,8 @@
 
 require conf/machine/include/ti33x.inc
 
-IMAGE_FSTYPES += "ubi tar.gz"
+IMAGE_FSTYPES += "ubifs"
+DEFAULTTUNE = "cortexa8hf-neon"
 
 SERIAL_CONSOLE = "115200 ttyO0"