I know this question was answered a thousand times but I can't find a solution. So here's what I have:
128Gb SSD with Windows 10 installed 1Tb HDD with a partition of about 80Gb that I used to install Ubuntu 16 (I am still asking myself why I didn't give it more space in the first place).
I now need to give Ubuntu more space from the HDD. I tried unallocating some space from Windows (5Gb) and while in Ubuntu I tried to follow the instructions here: How to give Ubuntu 14.04 more disk space but I can't unmount /dev/sda2.
How can I give Ubuntu more space then? Also what are exactly /dev/sda2, /dev/sda3, /dev/sda5 and /dev/sda6? I thought Ubuntu had only one partition. Which one should get extended?
Thank you