Several hours ago I took the ASA device in my lab to the routine software upgrade. I started with the fresh ASDM image upload, but it failed with the error message “Not enough space on device”. The reason sounds obvious, but it is not so trivial – how can you clean up some space on the physical appliance?

It appears that ASA does not clean up old software packages after their installation via ASDM. After several upgrades the flash memory of the device will be full of unused files, with no room to upload new ones. This is the time for manual cleanup. Continue reading “Cisco ASA: “Not enough space on device” error fixed” →