Have you enabled automatic printing of status messages in case of warming or errors? (see <http://logback.qos.ch/manual/configuration.html#automaticStatusPrinting> http://logback.qos.ch/manual/configuration.html#automaticStatusPrinting) It will go to your console. From: logback-user-bounces@qos.ch [mailto:logback-user-bounces@qos.ch] On Behalf Of Tony Trinh Sent: 25. august 2012 23:57 To: logback users list Subject: Re: [logback-user] Problem with Logging in Linux On Fri, Aug 24, 2012 at 6:52 AM, Oliver Zemann <oliver.zemann@gmail.com> wrote: Hi, i have the absolut identical file for Windows which works as expected (logging), but not for linux: http://rifers.org/paste/show/1801 There is just no logging - i started everything as root. Even when i use the FileAppender with its file name property set to "somelog.log" or "/root/somelog.log" it just saves nothing and i have no idea why. I used updatedb && locate to find a file called like this but there was nothing. Also lsof with a grep find nothing opened. So it is really not logging. Regards, Oli Your config for the RollingFileAppender is missing the <file> element. The manual contains a good example of all the necessary elements [1]. logback should print a warning in the debug output for this. It would be helpful if you provided additional details to reproduce the problem: * What version of logback and slf4j are you using? * Which flavor (and version) of Linux are you running? * Does the same problem occur when you try your logback config in a simple HelloWorld app (outside of install4j)? FYI, your logback config works (writes to a file) for me in Android. It looks like Install4j supports a console [2], when running the installer with "-c". It might be worth seeing if logback's debug-output prints in that console. [1]: http://logback.qos.ch/manual/appenders.html#logback-RollingTimeBased [2]: http://www.ej-technologies.com/products/install4j/whatsnew4.html