postinst_intercepts: add a delay_to_first_boot hook

This allows postinsts scripts to explicitly request a deferral to first boot
(by calling 'postinst_intercept delay_to_first_boot') instead of 'exit 1' which
should be used only to indicate actual script failures.

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/scripts/postinst-intercepts/delay_to_first_boot b/scripts/postinst-intercepts/delay_to_first_boot
new file mode 100644 (file)
index 0000000..ecdbef9
--- /dev/null
+++ b/scripts/postinst-intercepts/delay_to_first_boot
@@ -0,0 +1,2 @@
+#!/bin/sh
+exit 1