From 6c3e3ad4197714ea39fcd49d572a1713f803d835 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Sat, 3 Nov 2012 08:27:58 +0000 Subject: New top-level directory: system This directory groups the following elements: * the default root filesystem skeleton * the default device tables * the Config.in options for system configuration (UART port for getty, system hostname, etc.) * the make rules to apply the system configuration options Even though the skeleton and device tables could have lived in fs/, it would have been strange to have the UART, system hostname and other related options into fs/. A new system/ directory makes more sense. As a consequence, this patch also removes target/Makefile.in, which has become useless in the process. [Peter: fixup TARGET_SKELETON settings / documentation to match] Signed-off-by: Thomas Petazzoni Acked-by: Yann E. MORIN Acked-by: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Peter Korsgaard --- system/skeleton/etc/init.d/S20urandom | 54 +++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100755 system/skeleton/etc/init.d/S20urandom (limited to 'system/skeleton/etc/init.d/S20urandom') diff --git a/system/skeleton/etc/init.d/S20urandom b/system/skeleton/etc/init.d/S20urandom new file mode 100755 index 000000000..f73cea59e --- /dev/null +++ b/system/skeleton/etc/init.d/S20urandom @@ -0,0 +1,54 @@ +#! /bin/sh +# +# urandom This script saves the random seed between reboots. +# It is called from the boot, halt and reboot scripts. +# +# Version: @(#)urandom 1.33 22-Jun-1998 miquels@cistron.nl +# + +[ -c /dev/urandom ] || exit 0 +#. /etc/default/rcS + +case "$1" in + start|"") + if [ "$VERBOSE" != no ] + then + echo -n "Initializing random number generator... " + fi + # Load and then save 512 bytes, + # which is the size of the entropy pool + if [ -f /etc/random-seed ] + then + cat /etc/random-seed >/dev/urandom + fi + # check for read only file system + if ! touch /etc/random-seed 2>/dev/null + then + echo "read-only file system detected...done" + exit + fi + rm -f /etc/random-seed + umask 077 + dd if=/dev/urandom of=/etc/random-seed count=1 \ + >/dev/null 2>&1 || echo "urandom start: failed." + umask 022 + [ "$VERBOSE" != no ] && echo "done." + ;; + stop) + if ! touch /etc/random-seed 2>/dev/null + then + exit + fi + # Carry a random seed from shut-down to start-up; + # see documentation in linux/drivers/char/random.c + [ "$VERBOSE" != no ] && echo -n "Saving random seed... " + umask 077 + dd if=/dev/urandom of=/etc/random-seed count=1 \ + >/dev/null 2>&1 || echo "urandom stop: failed." + [ "$VERBOSE" != no ] && echo "done." + ;; + *) + echo "Usage: urandom {start|stop}" >&2 + exit 1 + ;; +esac -- cgit v1.2.3