git checkout tag, git pull fails in branch

Question

I have cloned a git repository and then checked out a tag:

# git checkout 2.4.33 -b my_branch

This is OK, but when I try to run git pull<

Answer 1

You need to set up your tracking (upstream) for the current branch

git branch --set-upstream master origin/master

Is already deprecated instead of that you can use --track flag

git branch --track master origin/master

I also like the doc reference that @casey notice:

-u 
  Set up 's tracking information so  is considered  
  's upstream branch. If no  is specified,  
  then it defaults to the current branch.