I restarted my Ubuntu Laptop after long time and now I can't start Graphical User Interface anymore. To solve this problem I tried to repair the packages from the recovery system, which said that there is not enough memory available. So I tried to free some memory using the root shell, but after freeing some memory, memory usage doesn't change and the calculation seems to be wrong too.
I have a Partition of 92 GB and only use 88 GB but df still says that I use 100% of the memory and 0 GB are available.
Is there any solution to correct the Memory calculation or is there a reason why it doesn't calculate correct?