notes

automatic_updates

https://community.linuxmint.com/tutorial/view/765|Automatic Upgrades through Cron
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, <code>
, Pretty much everything here is done in terminal, so unless it is preceeded by *, it is a command done as root. I use XFCE so I use mousepad as a text editor, but if you use GNOME substitute gedit, if you use KDE substitute kate, and if you use LMDX substitute leafpad.
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,  
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, 1) Install anacron
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, - aptitude install anacron
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,      * This will ensure that the cron scripts are run daily during idle time
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,  
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, 2) Create log files
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,  
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, - mousepad /var/log/apt-safe-upgrade
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,      * save it as a blank file and exit
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, - mousepad /var/log/apt-full-upgrade
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,      * save it as a blank file and exit
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,  
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, 3) Create the upgrade scripts
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,  
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, - mousepad /etc/cron.daily/apt-safe-upgrade
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,      * Paste the following:
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,  
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, #!/bin/sh
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, echo DQ*********************DQ >> /var/log/apt-safe-upgrade
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, date >> /var/log/apt-safe-upgrade
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, aptitude update >> /var/log/apt-safe-upgrade
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, aptitude safe-upgrade -o Aptitude::Delete-Unused=false --assume-yes >> /var/log/apt-safe-upgrade
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, echo DQUpdates (if any) installedDQ >> /var/log/apt-safe-upgrade
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,  
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,      * Save the file and exit
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,  
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, - mousepad /etc/cron.monthly/apt-full-upgrade
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,      * Paste the following:
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,  
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, #!/bin/sh
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, echo DQ*********************DQ >> /var/log/apt-full-upgrade
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, date >> /var/log/apt-full-upgrade
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, aptitude update >> /var/log/apt-full-upgrade
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, aptitude full-upgrade -o Aptitude::Delete-Unused=false --assume-yes >> /var/log/apt-full-upgrade
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, echo DQUpdates (if any) installedDQ >> /var/log/apt-full-upgrade
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,  
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,      * Save the file and exit
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,  
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, 4) Create log rotation files
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,  
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, - mousepad /etc/logrotate.d/apt-safe-upgrade
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,      * Paste the following:
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,  
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, /var/log/apt-safe-upgrade {
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, rotate 2
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, daily
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, size 250k
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, compress
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, notifempty
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, }
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,  
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,      * Save the file and exit
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,  
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, - mousepad /etc/logrotate.d/apt-full-upgrade
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,      * Paste the following:
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,  
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, /var/log/apt-full-upgrade {
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, rotate 2
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, monthly
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, size 250k
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, compress
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, notifempty
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, }
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,      * Save the file and exit
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,  
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, 5) Make the scripts executable
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,  
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, - chmod +x /etc/cron.daily/apt-safe-upgrade
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, - chmod +x /etc/cron.monthly/apt-full-upgrade
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,  
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, 6) Choose settings for configuration files
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,  
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, - mousepad /etc/apt/apt.conf.d/local
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,      * Paste the following:
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,  
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, Dpkg::Options {
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, DQ--force-confdefDQ;
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, DQ--force-confoldDQ;
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, }
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,  
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,      * DQconfdefDQ sets the behavior to use new version when the file wasnt modified, keep old when it was
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,      * DQconfoldDQ makes it force using the old file if it still wants to prompt for some reason
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,      * if you want to overwrite the current file by default, replace both with just DQ--force-confnewDQ
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, Bam, now youre all set up for automatic updates via cron. If you dont believe me, over the next day or two check out /var/log/apt-safe-upgrade and see if it ran!
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, ** UPDATE FOR LAPTOPS **
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, So anacron, being a cron job itself, apparently is deferred when a laptop is running on battery! This means that if you only charge your laptop/netbook while off and only have it on while on battery, this job will never run. The solution (not elegant, but it works) is to modify /etc/init.d/anacron ... NOTE: the reason anacron defers running until charging is to save battery life, and by letting it run it will reduce battery life. That said, on my netbook, which after a year is down to 5 hours life, lost about 10 minutes ... totally worth it IMO. But here we go:
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, - mousepad /etc/init.d/anacron
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,      - modify this: (only partially shown)
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,           log_progress_msg DQdeferred while on battery powerDQ
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,           log_end_msg 0
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,           exit 0
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,      - to this:
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,           log_progress_msg DQrunning while on battery powerDQ
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,           log_end_msg 0
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, #        exit 0
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, Thats it! Just comment out the exit line and it will continue as normal. You can choose whatever progress message you want as well; personally I have it tell me I look good today. :P Enjoy!
, </code>