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mythbackup via cron
http://forums.linhes.org/viewtopic.php?f=3&t=18000		 Page 1 of 1
Author:  bobmyth [ Wed Mar 05, 2008 9:09 pm ]
Post subject:  mythbackup via cron
I am not the best about backing-up my myth box and it could have saved me a few times. I've created script that can be called from a cron job to automatically backup my system. The script attempts to make sure your backend is not recording before performing the backup.
Code:
#/bin/sh

file=/tmp/status.html

wget -q -O $file http://localhost:6544
# Make sure backend is not already recording
grep -q 'is recording' $file
if test $? -eq 0 ; then
  # Some encoder is recording
  exit 0
fi

mythbackup
if $? -ne 0 ; then
  echo "Warning: mythbackup failed!"
fi
rm -f $file


I store this as run-mythbackup and have it execute from /etc/crontab once a week on Sunday:
Code:
15 4 * * 0      root    /usr/local/bin/run-mythbackup
Author:  mjl [ Wed Mar 05, 2008 11:41 pm ]
Post subject: 
Hi,

I also modified the menu halt button so my box does a backup before shutdown. That way if I forget to do a backup before going for an upgrade I don't hose myself :)
As always, watch for line wrapping.

halt-control.sh
Code:
#<code>
#!/bin/bash
# Shutdown mesage
lsmod |grep "ivtvfb "|cut -b1-6 >/tmp/tv
if [ $(cat /tmp/tv) = "ivtvfb" ]; then
fontsize="26"
fontcolor="lightyellow"
else
fontsize="34"
fontcolor="yellow"
fi
killall xterm
sudo killall mythfrontend&
echo "Starting Backup, followed with Shutdown" > /tmp/ver
echo "This may take a few minutes...." >> /tmp/ver
export DISPLAY=:0
export FONT="-adobe-helvetica-bold-*-*-*-$fontsize-*-*-*-*-*-*-*"
cat /tmp/ver | osd_cat --delay=180 --font=$FONT --color=$fontcolor --shadow=2 --pos=middle --align=centre&
festival --tts /tmp/ver >/dev/null
(play /usr/share/sounds/beg.wav) > /dev/null
sleep 1
sudo /usr/local/bin/mythbackup
killall osd_cat
(play /usr/share/sounds/end.wav)& > /dev/null
sleep 3
#(play /myth/saytime/gas.wav)& > /dev/null
sudo halt
#<end code>


Mike
Author:  tjc [ Thu Mar 06, 2008 6:45 pm ]
Post subject: 
Also see the discussion in this thread for a more robust script. http://knoppmyth.net/phpBB2/viewtopic.php?t=17988
Author:  bobmyth [ Thu Mar 06, 2008 9:17 pm ]
Post subject: 
Thanks for the suggestion. This is much better:
Code:
#/bin/sh

# Make sure backend is not busy
mythshutdown -s
if test $? -ne 0 ; then
  # 1 = transcoding, 2 = comm flag, 4 = grabbing data, 16 = locked
  exit 0
fi

mythbackup
if $? -ne 0 ; then
  echo "Warning: mythbackup failed!"
fi
Author:  tjc [ Thu Mar 06, 2008 9:36 pm ]
Post subject: 
Well, the intent was actually to have you try the idle.sh script posted in that thread which is substantially smarter about current and upcoming system activity... ;-)
Author:  tjc [ Sat Mar 08, 2008 3:55 pm ]
Post subject: 
I've published a link to the full blown idle.sh script in the thread mjl refers to above.

- Download it from there and put it in /usr/local/bin

- Make sure it's owned by root and has execute permissions:
Code:
chown root:root /usr/local/bin/idle.sh
chmod u=rwx,go=rx /usr/local/bin/idle.sh


- Change your cron command to be something like:
Code:
/usr/local/bin/idle.sh -s && /usr/local/bin/mythbackup >/var/log/backup.log 2>&1

Another possibility is to do something like this
Code:
(/usr/local/bin/idle.sh && /usr/local/bin/mythbackup) >/var/log/backup.log 2>&1

Which will include the verbose output from idle.sh in the log file. Note that both of these should be run as root to allow writing the logs in /var/log

- If you want to get really fancy configure the logfile rolling to keep a recent history of the logs.
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