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Asked: 2012-01-10 13:05:27 +0800 CST

Run anacron even when on battery (laptop)

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There is a known behavior of anacron not to run when the laptop is running on batteries. Is there any way to stop this behavior and run anacron whatever the power state?

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=152402

http://www.mail-archive.com/[email protected]/msg560900.html

https://bugs.launchpad.net/ubuntu/+source/anacron/+bug/36816

11.10

3 Answers

  1. Best Answer

    Please never change any files in /usr! Instead, you may change a line in the file /etc/default/anacron to

    ANACRON_RUN_ON_BATTERY_POWER=yes

    Thanks @Teresa e Junior. :)

    • 4

  2. I found how to do this and summarized it in my blogpost

    http://opensourceresearchtips.blogspot.com/2012/01/linux-anacron-tips.html

    To change this behavior of anacron do the following:

     sudo gedit /usr/lib/pm-utils/power.d/anacron

    and change to

    case $1 in
    false)
 start -q anacron || :
 ;;
    true)
 start -q anacron || :
 ;;
esac
    • 1

  3. For Debian based systems using systemd look at /usr/share/doc/anacron/README.Debian for instructions on creating /etc/systemd/system/anacron.service.d/on-ac.conf. The README tells what contents the file should be created with. This worked for me running daily snapshots with rsnapshot. I Have only tried this on Ubuntu 20.04. It seems likely that other distros may have a similar README in that directory. /etc/default/anacron has instructions to look in /usr/share/doc/anacron/README.Debian in Ubuntu 20.04. Thanks so much @mzuther : )

    Just in case the README is not on someone's system the file contents should be:

    [Unit]
ConditionACPower=
    • 1