Moodle installation error on Homestead VM

I have installed the Homestead VM and setup the Moodle installation folder on my Mac (OSX Yosemite). I also created the 'moodledata' folder and gave it the permissions 0777 as well as the folder 'moodledata/sessions' via my system command line (I tried doing this via SSH inside the VM but it didn't appear to change the permissions). However checking the permissions after doing it via my system showed the folder was writable from inside the VM. I then moved on to the installation which ran through and created the DB tables and did the check which showed 2 check warnings: Intl and xmlrpc to check I don't believe these are essential for initial installation so carried on. It is when I get to the admin user creation where I am getting a problem. The page (/user/editadvanced.php?id=2) stops loading any images and when I post the form I get an error: 'Incorrect sesskey submitted, form not accepted!' I thought this could be down to the session not being writable in the moodledata folder but as I have checked that now I am out of ideas! I have attached a couple of screenshots. Many thanks, Mike. [![Folder permission from inside the VM][1]][1] [![Moodle page when it starts having problems][2]][2] [1]: https://i.sstatic.net/P14j0.png [2]: https://i.sstatic.net/2Lbe5.png