install vivid LTS kernel
diff --git a/ubuntu-14.04/http/preseed.cfg b/ubuntu-14.04/http/preseed.cfg
index d2b6f92..1ee1495 100644
--- a/ubuntu-14.04/http/preseed.cfg
+++ b/ubuntu-14.04/http/preseed.cfg
@@ -32,7 +32,7 @@
options/noatime{ noatime } \
. \
-d-i pkgsel/include string openssh-server
+d-i pkgsel/include string openssh-server linux-generic-lts-vivid
d-i pkgsel/install-language-support boolean false
d-i pkgsel/update-policy select unattended-upgrades
popularity-contest popularity-contest/participate boolean false