Debian – How to recreate /etc/cron.daily/apt

aptcron.dailydebianupgrade

On my Debian 6.0.8 system the /etc/cron.daily/apt file is missing. Therefore, unattended upgrades do not work.

How can I recreate/fix /etc/cron.daily/apt?

Best Answer

first find which package contains the missing file:

$ dpkg --search /etc/cron.daily/apt
apt: /etc/cron.daily/apt

which is that case is the package "apt", and then re-install it:

$ sudo apt-get -o Dpkg::Options::="--force-confmiss" --reinstall install apt

edit: added the option to force the miss conf

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Ubuntu – How to get automatic upgrades to work on Ubuntu Server

Have you check /etc/apt/apt.conf.d/10periodic ?

it should have the last line

APT::Periodic::Update-Package-Lists "1";
APT::Periodic::Download-Upgradeable-Packages "1";
APT::Periodic::AutocleanInterval "1";
APT::Periodic::Unattended-Upgrade "1";

Ubuntu – /etc/cron.daily/apt: Segmentation fault

I'm betting your problem stems from insufficient environment variables in that apt script. (eg: $PATH or $LD_LIBRARY_PATH) Essentially, there's a difference between running things via cron and running them in an interactive shell. The latter gets your login environment from places like /etc/profile and ~/.bashrc. Try adding a line or two at the start /etc/cron.daily/apt to import those settings, like so:
. /etc/profile

I'll be totally honest, and point out that I'm not too familiar with Ubunto, so those file locations may not be perfect. If you're using a shell other than Bash, your personal login file may be ~/.profile, or ~/.cshrc, or even something completely different. But the concept is the same.

A related question can be found here.

--Christopher Karel

Best Answer

Related Solutions

Ubuntu – How to get automatic upgrades to work on Ubuntu Server

Ubuntu – /etc/cron.daily/apt: Segmentation fault

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