As far as I can tell, there are two possible problems here.
First, you cannot move or resize a partition while your operating system is running from it. Meaning, if you are running the Ubuntu installation, you cannot increase the size of its partition. You will need to run an OS from somewhere else.
Second, I'm assuming you had Windows before you installed Ubuntu. In that case, your Ubuntu partition is probably displayed to the right in gparted
, with the free space you removed from the Windows partition to the left of it. Problem is, a partition can only be expanded towards the right, so if the free space is to the left of your Ubuntu partition, you will need to move the Ubuntu partition to the left, and then expand it towards the right.
How I suggest doing so:
- As always, when messing with partitions, backup your data.
- Make a GParted live bootable USB stick.
- Boot into that, just like you did with the Ubuntu installer, and open
gparted
- Select your Ubuntu partition
- At the top, click Partition>Resize/Move
- Move it to the left, and expand it to the right and fill the 200GB.
gparted
, and then I can make the best recommendation. Start comments to me with @heynnema or I may miss them. – heynnema Jan 15 '20 at 15:05