Q:

Git clone remote repo into another remote repo

Cloning git repo from remote server to local computer is rather easily done the standard way, but I need to clone a remote repo into another remote repo, is it possible?
P.S. I come up with this problem because I just can't fork my own project on GitHub to create a child project, I can fork the projects of other users only. This is about cloning to make a whole child project from parent project, not just a submodule.

A:

Cloning git repo from remote server to local computer is rather easily done the standard way, but I need to clone a remote repo into another remote repo, is it possible?

In git you can't have .git folder inside another git folder
What can you do?

Clone the original repo
Add new remote git remote add <origin2> <url2>
Use the code from both the repositories inside a single repo

Now you can pull and merge the branches from the 2 remotes and have the code of both of them in a single repository.
As you can see in the image below you will have 2 repositories  which builds up your big repository.
# clone first repository
git clone <repo1>

# add remote 
git remote add <remote2> <url2>

# display the list of all the remotes
git remote -v

