I'm very new to linux, coming from lifetime of windows. And also, apparently, stupid. because even though there are many questions similar to mine, I cant seem to find (or rather understand) solution. Anyway, I have installed linux (ubuntu 20.04, dual boot) on 30 GB (as suggested by most installation guides out there) partition on an empty 500 GB ssd. However, the 30 GB ran out quickly, because everything is installed on the system file partition (to be honest i don't understand if i can just install new softwares on the other partitions).
In windows, I used to install everything on C: drive and all my media and documents i kept on other drive (D:) . I did this because I wanted to make a separation between my files and installed softwares, in the case i'll have to format windows.
Now, I wish to enlarge my ubuntu system file (30 GB) partition. I resized the remaining ~450 GB partition and created a new 200GB partition:
and I wish to merge the unallocated partition (186GB) and my ubuntu partition (sdb5). How do i do that?? Is this possible? please remember that i read many posts before posting this, and still couldn't figure it out. Am I too dumb for linux??
Thanks a lot for any help!