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