Unable to pull my Pantheon site after clean install

[kopeboy]

Running drush pullsite mysite.dev

Request failed: 403 "No realm detected." | [failed] Invalid argument supplied for foreach() terminus.drush.inc:4147 | [warning] Unable to retrieve the latest database backup from Pantheon. | [error] mkdir(): Permission denied terminatur.code.inc:37 sh: line 0: cd: /var/www/: No such file or directory | [warning] Could not clone code from the remote repository. Check that your SSH key is loaded and the codeserver is reachable. | [error]

Can you provide any help with the missing steps please?

[pirog]

i think this is a fairly well documented kalabox/kalastack/terminatur issue. have you looked at
kalamuna/kalaboxv1#82 ?