adaptions from Zirkus Zack branch

[bootimage] / config_base / etc / apt / preferences

diff --git a/config_base/etc/apt/preferences b/config_base/etc/apt/preferences
new file mode 100644 (file)
index 0000000..6534992
--- /dev/null
+++ b/config_base/etc/apt/preferences
@@ -0,0 +1,3 @@
+Package: *
+Pin: release n=stretch
+Pin-Priority: 900