When I git clone via http: git clone http://git.infradead.org/users/willy/linux-nvme.git I got the error: Cloning into 'linux-nvme'... fatal: http://git.infradead.org/users/willy/linux-nvme.git/info/refs not found: did you run git update-server-info on the server? How can I fix it? Thanks. Haiyan Hu