diff --git a/tools/appliance/definitions/systemvmtemplate/definition.rb b/tools/appliance/definitions/systemvmtemplate/definition.rb
index 351a40d3449..59654065617 100644
--- a/tools/appliance/definitions/systemvmtemplate/definition.rb
+++ b/tools/appliance/definitions/systemvmtemplate/definition.rb
@@ -42,7 +42,7 @@ architectures = {
 config = {
     :cpu_count => '1',
     :memory_size => '256',
-    :disk_size => '3500', :disk_format => 'VDI', :hostiocache => 'off',
+    :disk_size => '2500', :disk_format => 'VDI', :hostiocache => 'off',
     :iso_download_timeout => '1200',
     :boot_wait => '10',
     :boot_cmd_sequence => [
diff --git a/tools/appliance/definitions/systemvmtemplate/preseed.cfg b/tools/appliance/definitions/systemvmtemplate/preseed.cfg
index 438488bb178..0d2f70b3d0b 100644
--- a/tools/appliance/definitions/systemvmtemplate/preseed.cfg
+++ b/tools/appliance/definitions/systemvmtemplate/preseed.cfg
@@ -50,7 +50,7 @@ d-i partman-auto/expert_recipe string                         \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /boot }                     \
               .                                               \
-              250 40 400 ext4                                 \
+              400 40 500 ext4                                 \
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ / }                         \