I have installed 10.12.6 from scratch, using the Migration Assistant for copying everything from my 10.11.6 installation, but there's one thing that behaves differently. I have two users. My normal user isn't in the sudoers file. But I have another superuser, which is. So, whenever I need to do some system change, I enter the superuser password. However, in 10.11.6, when I wanted superuser privileges from Terminal, I just typed "su superuser" and then I was able to "sudo" as superuser. It worked fine even if the current directory belonged to my normal user. But now, in my new 10.12.6 installation, if I "su superuser" for a folder belonging to my normal user, I get: "shell-init: error retrieving current directory: getcwd: cannot access parent directories: Permission denied" which means that superuser cannot read my normal user folders. This error didn't happen in 10.11.6, although I don't remember if I had to change anything for it to work. What could be the easiest way of fixing this? Thanks!!!