diff --git a/profiles/CB4/package.use b/profiles/CB4/package.use
index 131fee20..27dd04cb 100644
--- a/profiles/CB4/package.use
+++ b/profiles/CB4/package.use
@@ -30,3 +30,7 @@ mail-mta/postfix -ldap
 net-dns/bind -ldap
 net-mail/dovecot -ldap
 net-proxy/squid -ldap
+
+# build for lxc
+# removed unnecessary dependence
+sys-apps/debianutils -installkernel
diff --git a/profiles/templates/6_ac_update_sync/world/grp/sys-kernel b/profiles/templates/6_ac_update_sync/world/grp/sys-kernel
index 3b64fb50..11479711 100644
--- a/profiles/templates/6_ac_update_sync/world/grp/sys-kernel
+++ b/profiles/templates/6_ac_update_sync/world/grp/sys-kernel
@@ -1,24 +1,37 @@
 # Calculate name=world format=world
 
-# server kernel
+#?in(os_linux_pkglist, CB1)!=#
+installkernel
+#in#
+
+#?in(os_linux_pkglist, CB2)!=#
+installkernel
+#in#
+
+# server kernels
 #?in(os_linux_pkglist, CB3)!=#
 #-world(sys-kernel/calculate-sources)-#
 #in#
 
 #?in(os_linux_pkglist, CB4)!=#
-sys-kernel/bliss-initramfs
-sys-kernel/calculate-sources
-sys-kernel/dracut
-sys-kernel/fake-sources
-sys-kernel/genkernel
-sys-kernel/gentoo-kernel-bin
-sys-kernel/installkernel-gentoo
-sys-kernel/kergen
-sys-kernel/linux-firmware
-sys-kernel/linux-headers
+bliss-initramfs
+calculate-sources
+dracut
+fake-sources
+genkernel
+gentoo-kernel-bin
+installkernel
+kergen
+linux-firmware
+linux-headers
 #in#
 
-# desktop kernel
+#?in(os_linux_pkglist, CBS)!=#
+installkernel
+#in#
+
+
+# desktop kernels
 #?in(os_linux_pkglist, CBS)!=#
 #-world(sys-kernel/calculate-sources)-#
 #in#