diff --git a/samples/lvm/ks.default b/samples/lvm/ks.default
index 329c785..0cf3fdf 100644
--- a/samples/lvm/ks.default
+++ b/samples/lvm/ks.default
@@ -44,7 +44,7 @@ clearpart --all --initlabel
 part /boot --fstype ext2 --size=500
 part pv.01 --size=1 --grow
 volgroup vg_root pv.01
-logvol  /  --vgname=vg_root  --name=lv_root --grow
+logvol  /  --vgname=vg_root  --name=lv_root  --size 1  --grow
 
 #System authorization infomation
 auth  --useshadow  --enablemd5
diff --git a/samples/lvm/seed.default b/samples/lvm/seed.default
index 7401018..9069065 100644
--- a/samples/lvm/seed.default
+++ b/samples/lvm/seed.default
@@ -29,6 +29,11 @@ d-i     grub-installer/timeout  string 2
 # Add the network and tasks oem-config steps by default.
 oem-config      oem-config/steps        multiselect language, timezone, keyboard, user, network, tasks
 
+# Overwrite/remove existing LVMs
+d-i partman-lvm/confirm_nooverwrite boolean true
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman-lvm/confirm boolean true
+
 # Bypass no swap warning
 d-i partman-basicfilesystems/no_swap boolean false