On Tue, Jun 18, 2019 at 12:39 PM Anthony Sottile <asottile@xxxxxxxxx> wrote: > + git fetch origin --tags > Unpacking objects: 100% (10/10), done. > From https://github.com/asottile-archive/git-windows-branch-test > * [new branch] master -> origin/master > error: cannot lock ref 'refs/remotes/origin/pr/aux': Unable to create > 'C:/Users/IEUser/x/x/.git/refs/remotes/origin/pr/aux.lock': No such > file or directory > ! [new branch] pr/aux -> origin/pr/aux (unable to update local ref) AUX is a reserved[1] filename on Windows. Quoting from that source: Do not use the following reserved names for the name of a file: CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9. Also avoid these names followed immediately by an extension... The default Git "ref store" is filesystem-based, so a branch named "aux" is problematic. Other ref store implementations would not be subject to this limitation (though I'm not sure what the state of the others is -- someone with more knowledge can probably answer that). [1]: https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#naming-conventions
