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From: Christopher Friedt <chrisfriedt@gmail.com>
Date: Sat, 23 Jul 2011 13:10:13 -0400
Message-ID: <CAF4BF-S452UcQNbJZ2ZZ=0mwvG+8BmauN1xhrVhaaJcDXNqJCw@mail.gmail.com>
Subject: [gentoo-embedded] sysvinit: sanetime for boards without an rtc?
To: gentoo-embedded@lists.gentoo.org
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Hi folks,
I have a couple of boards that ship by default without RTC devices and
boot time always incurs the following nasty messages in multiplicity.
...
=A0* One of the files in /etc/{conf.d,init.d} or /etc/rc.conf
=A0* has a modification time in the future!
=A0* One of the files in /etc/{conf.d,init.d} or /etc/rc.conf
=A0* has a modification time in the future!
...
A very simple solution was be to maintain an /etc/sanetime file that
would set a time other than the epoch at boot. Something within the
last day, month, year, or decade even ;-)
There's a fallback sanetime in /etc/init.d/sanetime just in case
/etc/sanetime doesn't exist, and it works naturally because time is
monotonically increasing (last I checked).
Also, it would seem that /etc/clock doesn't fail gracefully when there
is no rtc, even when there are provisions to 'fakeit' for other
reasons.
...
=A0* Cannot access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access metho=
d.Can
not access the Hardware Clock via any known method.
Use the --debug option to see the details of our search for an access metho=
d.
=A0* Failed to set clock You will need to set the clock yourself
=A0 [ !! ]
...
It was just a matter of adding an /etc/init.d/sanetime script,
slightly patching /etc/init.d/clock & /sbin/rc (AFAIK this only works
for sysvinit, not openrc).
See the attached files.
Cheers,
C
PS: I was going to file a bug report, but it seems that the
certificate for bugs.gentoo.org has become invalid ATM.
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