diff --git a/ubuntu-14.04/http/preseed-lvm.cfg b/ubuntu-14.04/http/preseed-lvm.cfg
index c0863a2..528a577 100644
--- a/ubuntu-14.04/http/preseed-lvm.cfg
+++ b/ubuntu-14.04/http/preseed-lvm.cfg
@@ -1,4 +1,7 @@
-choose-mirror-bin mirror/http/proxy string
+d-i apt-setup/use_mirror boolean false
+d-i apt-setup/local0/repository string [arch=amd64] http://apt.cloudlab.cz/nightly trusty main cloudlab security
+d-i apt-setup/local0/key string http://apt.cloudlab.cz/public.gpg
+
 d-i debian-installer/framebuffer boolean false
 d-i debconf/frontend select noninteractive
 d-i base-installer/kernel/override-image string linux-server
@@ -25,19 +28,21 @@
 
 d-i partman-auto/expert_recipe string                         \
       boot-root ::                                            \
-              64 128 128 ext3                                 \
+              64 128 128 ext4                                 \
                       $primary{ } $bootable{ }                \
                       method{ format } format{ }              \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ /boot }                     \
+                      options/noatime{ noatime }              \
               .                                               \
               128 512 200% linux-swap                         \
                       method{ swap } format{ }                \
               .                                               \
-              512 512 512 ext3                                \
+              512 512 512 ext4                                \
                       method{ format } format{ } $lvmok{ }    \
                       use_filesystem{ } filesystem{ ext4 }    \
                       mountpoint{ / }                         \
+                      options/noatime{ noatime }              \
               .                                               \
 
 d-i partman/default_filesystem string ext4
diff --git a/ubuntu-14.04/http/preseed.cfg b/ubuntu-14.04/http/preseed.cfg
index 06c2ddd..adb5924 100644
--- a/ubuntu-14.04/http/preseed.cfg
+++ b/ubuntu-14.04/http/preseed.cfg
@@ -1,4 +1,7 @@
-choose-mirror-bin mirror/http/proxy string
+d-i apt-setup/use_mirror boolean false
+d-i apt-setup/local0/repository string [arch=amd64] http://apt.cloudlab.cz/nightly trusty main cloudlab security
+d-i apt-setup/local0/key string http://apt.cloudlab.cz/public.gpg
+
 d-i debian-installer/framebuffer boolean false
 d-i debconf/frontend select noninteractive
 d-i base-installer/kernel/override-image string linux-server