-# http://git.savannah.gnu.org/cgit/grub.git
-Source0: http://git.savannah.gnu.org/cgit/grub.git/snapshot/grub-%{version}-%{beta}.tar.gz
-# Source0-md5: b6f4c2947ee2b972c124fea85c21d92c
+# 1. Download and unpack latest official beta snapshot from http://git.savannah.gnu.org/cgit/grub.git
+# 2. Run ./autogen.sh and ./linguas.sh
+# 3. Recompress and upload to DF
+Source0: grub-%{version}-%{beta}.tar.xz
+# Source0-md5: f262e61eba2e76a6f60b39a810814284