Delete initial git commit of main branch

Question

How can I delete all the commits including initial commit from the main branch of my git project?

I know we can do it by deleting .git directory and reinitializing the git project. However, I will miss all the commit history. So is there a way to do it using git commands?

Answer 1

IIUC you want to rename main branch and create a new orphan main branch:

$ git branch -m main main.bak
$ git checkout  --orphan main
Switched to a new branch 'main'
$ git log main
fatal: your current branch 'main' does not have any commits yet

Commits done on old main branch are now on main.bak branch.