[mythtv-users] Carbon Footprint
Thomas Boehm
mythtv-users at lists.boehmi.net
Thu Aug 29 14:52:31 UTC 2013
Daryl McDonald wrote:
>
>
>
> On Thu, Aug 29, 2013 at 10:27 AM, Stephen Worthington
> <stephen_agent at jsw.gen.nz <mailto:stephen_agent at jsw.gen.nz>> wrote:
>
> On Thu, 29 Aug 2013 10:10:48 -0400, you wrote:
>
>
> >If I understand correctly, logging off, instead of powering off
> will allow
> >myth to power off the box and thereby enable powering on for
> recordings
> >when set up properly.
> >But I've hit a brick wall before I get that far, I'm following
> the how-to
> > for setting the alarm when clock is in RTC, I've swapped the
> ">" command
> >for ">." and even prefaced with "sudo" and still permission is
> denied. What
> >have I missed?
> >
> >daryl at daryl-A780L3C:~$ SECS=`date -u --date "2013-08-29 10:15:00"
> +%s`
> >daryl at daryl-A780L3C:~$ echo 0 >.; /sys/class/rtc/rtc0/wakealarm
>
> That should be:
>
> echo 0 >/sys/class/rtc/rtc0/wakealarm
>
> >bash: .: Is a directory
> >bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> >daryl at daryl-A780L3C:~$ sudo echo 0 >.; /sys/class/rtc/rtc0/wakealarm
>
> sudo echo 0 >/sys/class/rtc/rtc0/wakealarm
>
> >bash: .: Is a directory
> >bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> >daryl at daryl-A780L3C:~$
> >
> >Daryl
>
> As Chris Porter said, the > on that web page is html for a >
> character - it looks like the HTML editing software used to create the
> page put it in automatically instead of the correct > character in the
> examples, so wherever you see those characters in bash scripts inside
> the boxes on that page, replace all 4 characters with one single >
> character to get the correct syntax.
>
> I'm still getting permission denied:
>
> daryl at daryl-A780L3C:~$ SECS=`date -u --date "2013-08-29 10:50:00" +%s`
> daryl at daryl-A780L3C:~$ echo 0 > /sys/class/rtc/rtc0/wakealarm
> bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> daryl at daryl-A780L3C:~$ echo $SECS > /sys/class/rtc/rtc0/wakealarm
> bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> daryl at daryl-A780L3C:~$ SECS=`date -u --date "2013-08-29 10:50:00" +%s`
> daryl at daryl-A780L3C:~$ sudo echo 0 > /sys/class/rtc/rtc0/wakealarm
> bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> daryl at daryl-A780L3C:~$ sudo echo $SECS > /sys/class/rtc/rtc0/wakealarm
> bash: /sys/class/rtc/rtc0/wakealarm: Permission denied
> daryl at daryl-A780L3C:~$
>
> what can I try now?
All these commands need root privileges. Either you use "sudo" in front
of each command or get a root shell with "sudo bash" and try all
commands there.
HTH
Thomas
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