I know this might seem like a duplicate, but I've seen the other posts, and they're problems and different than mine.
I installed Ubuntu along side Windows 10, and now I want to take more 30Gb from the hard drive I installed Ubuntu on. However, I'm not being able to do it.
I was following this video on youtube, and my problem begins at minute 10:45. He is able to resize the extended partition while mine is locked. I also noticed that my ext4 root partition is inside the extended one. Here's what it looks like: screenshot
I'm super new to this, so I'm sorry if I'm doing something stupid. Thanks