--- /dev/null
+--- prepare-build-env.sh.orig 2015-08-11 22:12:19.750626481 +0200
++++ prepare-build-env.sh 2015-08-11 22:43:42.308300848 +0200
+@@ -43,7 +43,7 @@
+ trusty)
+ GEMPKG="ruby ruby-dev"
+ # we need multistrap version 2.1.6, let's install it from devops mirror
+- sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys D5A05778
++ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 1D2B45A2
+ echo "deb http://mirror.fuel-infra.org/devops/ubuntu/ ./" | sudo tee /etc/apt/sources.list.d/fuel-devops.list
+ # be sure, that we will not update multistrap in future
+ sudo tee /etc/apt/preferences.d/fuel-pin-300 <<EOF