diff --git a/tools/appliance/definitions/systemvmtemplate/definition.rb b/tools/appliance/definitions/systemvmtemplate/definition.rb
index 3d9da813433..aee274155cc 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 => '3000', :disk_format => 'VDI', :hostiocache => 'off',
+    :disk_size => '18000', :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 2127090d62c..ea7774105a6 100644
--- a/tools/appliance/definitions/systemvmtemplate/preseed.cfg
+++ b/tools/appliance/definitions/systemvmtemplate/preseed.cfg
@@ -75,7 +75,7 @@ d-i partman-auto/expert_recipe string                         \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /var }                      \
               .                                               \
-              200 50 500 ext4                                 \
+              1000 40 15000 ext4                              \
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /var/log }                  \