I want to know how to use apt on Ubuntu Touch?

[JacekRock]

I run

sudo apt install vim

but failed

[incyi]

What does the "fail" say ?

[JacekRock]

W: Not using locking for read only lock file /var/lib/dpkg/lock
E: Unable to write to /var/chache/apt/
E: The package lists or status file could not be parsed or opened.

[Lakotaubp]

Fairly certain apt does not work on UT.

[alan_g]

See the FAQ: "Can I use the APT repositories on Ubuntu Touch and install packages?"

The system partition is intentionally read-only (because of design trade-offs suited to a phone). You can create a chroot and install things there.

[JacekRock]

but it says "Our goal is to provide a single platform for application developers, allowing a single code base to run on all Ubuntu Touch devices. Running apt on Ubuntu Touch is possible, but it's only for developers because it will break future OTA update push." Doesn't apt work in theory?

[dobey]

@JacekRock The supported method of using apt, is to create a container in libertine and install the legacy/console apps you want to use, in there. Being a single converged platform, doesn't mean supporting legacy insecure packaging methods of traditional distributions.

[arubislander]

@JacekRock
While I realize your question is about using apt, it might be worth noting that vim is already installed in the root filesystem.
You can access it with vi from the terminal application.

[jezek]

@arubislander vi is not vim. Or did I miss something?

[AppLee]

@jezek
mv vim vi and it is
I think @arubislander is correct and this is in fact vim that is executed with command vi on Ubuntu Touch.
I remember that happy face I had when I accidentally typed insert and saw the insertion mode message.

But my memory is bad so don't trust it too much.

[dobey]

vi on Debian/Ubuntu is indeed just vim in a more pure vi mode.