How to rename branch in git on local and remote server?

Question

I am getting this there while updating Sub module in my main project

Answer 1

Local Server

If you want to rename a branch while pointed to any branch, do :

git branch -m <oldname> <newname>

If you want to rename the current branch, you can do:

git branch -m <newname>

Delete the oldname remote branch and push the newname local branch.

git push origin :oldname newname

Reset the upstream branch for the newname local branch.
Switch to the branch and then:

git push origin -u newname