why is "saned" disabled on boot Ubuntu 12.04?

Solution 1:

As the error said, look inside /etc/default/saned :

# Defaults for the saned initscript, from sane-utils

# Set to yes to start saned
RUN=no

# Set to the user saned should run as
RUN_AS_USER=saned

If directive/variable "RUN" is set to "no", then you must change it to "yes". To do this, open /etc/default/saned file with following command:

sudo -H gedit /etc/default/saned

Set RUN=yes. Now, saned service will be started during start-up of Ubuntu, but to start the service for now, run following command:

sudo /etc/init.d/saned start

If you see a line similar to the below line, it means that the service is running.

[ ok ] Starting saned (via systemctl): saned.service.