When I try to upload new content to use in our customized captive portal I run into the following error.
System has low free memory and/or low free disk space. Please delete unwanted files by accessing WebUI Maintenance > File > Delete Files, reload the controller to recover free memory and try uploading the image again. If it fails again, try other upgrade options.
This error is pretty self-explanatory.. you'd say :)
What command can I use to determine wether dispace and/or memory is the issue?