Safeboot says my password is expiring, how do I change my safeboot password?
After you enter your username and password at the Safeboot login screen, check the box for “change password” and you will be prompted to change your password. You must enter your current username and password before you’ll be able to check the box. There is no harm in waiting for the password to expire on its own. After it expires you will be prompted to change it before you can login. You can see a screen shot here.