on a server with SLES 12, noticed that all of a sudden, the system would not go into the GUI, and complains that there is 'no space left on device'. It does take me to the prompt, where doing a 'df -kP' command i can see that /dev/sda2 is 100%.
i have tried to truncate system log files, but only gained small space in Kbytes. I then planned on removing orphaned RPM packages, but observed that removal of RPM packages also complains that there is no space on device, therefore this plan of action did not work.
Please provide input in order to gain space so that i can boot properly into the GUI.