mirror of https://git.yoctoproject.org/poky synced 2026-05-04 22:39:49 +02:00

Files

Gary Thomas efce51ec11 Suppress useless warnings during udev startup

I have a number of platforms which have no realtime clock
(i.e. no sense of what day/time it is).  On these platforms,
poky dutifully tries to keep somewhat sane with stored
time stamps that are saved on reboot and restored early
on during initialization.  A fair compromise.

However, before that code runs, the udev script tries to
restore well known devices using tar.  This will often
lead to messages such as these since the kernel has no
way to set the time:
   tar: dev/pts: implausibly old time stamp 1970-01-01 00:00:00
   tar: dev/char/3:134: time stamp 1970-01-01 00:00:09 is 0.435041705 s in the future

The attached patch filters these messages out as they don't
convey anything useful and indeed are worrisome to more naive
users.

--
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
------------------------------------------------------------

>From a6773d3e00dbd168817730fff1c3fc7e1b6950f5 Mon Sep 17 00:00:00 2001
From: Gary Thomas <gary@mlbassoc.com>
Date: Thu, 17 Feb 2011 11:30:18 -0700
Subject: [PATCH] Suppress messages about bad time stamps during initial device setup

Signed-off-by: Gary Thomas <gary@mlbassoc.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>

2011-02-24 14:34:49 -08:00

1.7 KiB

Raw Blame History

#!/bin/sh -e

BEGIN INIT INFO

Provides: udev

Required-Start: mountvirtfs

Required-Stop:

Default-Start: S

Default-Stop:

Short-Description: Start udevd, populate /dev and load drivers.

END INIT INFO

export TZ=/etc/localtime

[ -d /sys/class ] || exit 1 [ -r /proc/mounts ] || exit 1 [ -x /sbin/udevd ] || exit 1 [ -f /etc/udev/udev.conf ] && . /etc/udev/udev.conf

kill_udevd() { if [ -x /sbin/pidof ]; then pid=/sbin/pidof -x udevd [ -n "$pid" ] && kill $pid fi }

export ACTION=add

propagate /dev from /sys

echo -n "Starting udev"

mount the tmpfs on /dev, if not already done

LANG=C awk "$2 == "/dev" && $4 == "tmpfs" { exit 1 }" /proc/mounts && { mount -n -o mode=0755 -t tmpfs none "/dev" mkdir -m 0755 /dev/pts mkdir -m 1777 /dev/shm }

if [ -e /etc/dev.tar ]; then (cd /; tar xf /etc/dev.tar 2>&1 | grep -v 'time stamp') not_first_boot=1 fi

make_extra_nodes

kill_udevd > "/dev/null" 2>&1

    # trigger the sorted events
    echo -e '\000\000\000\000' > /proc/sys/kernel/hotplug
    /sbin/udevd -d

    /sbin/udevadm control --env=STARTUP=1
	if [ "$not_first_boot" != "" ];then
		/sbin/udevadm trigger --subsystem-nomatch=tty --subsystem-nomatch=mem --subsystem-nomatch=vc --subsystem-nomatch=vtconsole --subsystem-nomatch=misc --subsystem-nomatch=dcon --subsystem-nomatch=pci_bus  --subsystem-nomatch=graphics  --subsystem-nomatch=backlight --subsystem-nomatch=video4linux  --subsystem-nomatch=platform
		(/sbin/udevadm settle --timeout=3; /sbin/udevadm control --env=STARTUP=)&
	else
		/sbin/udevadm trigger
		/sbin/udevadm settle
	fi

echo exit 0

1.7 KiB Raw Blame History