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+# build
+```bash
+tar -xvf grub2_2.06-3~aco2.debian.tar.xz
+cp -r debian grub-2.06
+cd grub-2.06
+debuild -S -uc -us
+cd ..
+
+# upload files bellow to obs
+#   grub2_2.06-3~aco2.debian.tar.xz
+#   grub2_2.06.orig.tar.xz
+#   grub2_2.06.orig.tar.xz.asc
+#   grub2_2.06-3~aco2.dsc
+
+```