@Lakotaubp Well, because I have to install OpenCV. If you know how to install or whether the root partition of a large-capacity mobile phone will also become larger, please let me know, thank you.

@kugiigi Thanks, I know the risks. But after I executed three commands in sequence, the root partition was still 2G. I don't know what went wrong.

@kugiigi Thanks for the reply, but I need to use apt to install, for example, I want to install opencv. Tried some of the methods provided in the community, and it was unsuccessful. Why is there so little root partition capacity? If installing with a large-capacity mobile phone, can the root partition become larger?

@Lakotaubp Thanks for the reply, but I need to use apt to install, for example, I want to install opencv. Why is there so little root partition capacity? If installing with a large-capacity mobile phone, can the root partition become larger?

After the nexus 5 mobile phone is installed with ubuntu touch, the root partition is only 2Gb, and I basically have no way to install any packages using apt. I checked some information and community posts, there is no feasible way to help make the root partition bigger.

I have a few questions

1. What is the basis for ubuntu touch to assign the root partition;
2. If I install ubuntu touch with a large storage phone, does the root partition become larger?

Advanced issues

1. Is there any way to adjust the root partition as needed
2. How to install opencv on ubuntu touch

Thanks to everyone who tried to help