I am using Ubuntu 12.04 for an embedded project.
I need cron jobs to execute only at their specified time, because time may be stepped forwards (resulting in a missed job) but those jobs should be skipped.
While testing this, even when I place my crontabs into /etc/cron.d, and for example schedule the job for 13:15, set system time to 13:25, the job will execute at ~13:26.
I do not want to execute missed jobs, they should be ignored (according to the research I've done, this is "normal" cron behavior).
Any suggestions on how to remove anacron and just keep plain old cron?
Thanks.