I'm sure I'm missing something quite basic here, but I'm running Ubuntu through Virtual Box on my Mac, and so I need to give my Ubuntu user read/write access to the folder shared by the host and guest systems (named sf_VB_Shared_Folder). I performed and got the following:
user@user-VirtualBox:/media$ ls -l
total 0
drwxrwx--- 1 root vboxsf 68 Aug 3 07:59 sf_VB_Shared_Folder
user@user-VirtualBox:/media$ sudo chmod ugo+rwx sf_VB_Shared_Folder
user@user-VirtualBox:/media$ ls -l
total 0
drwxrwx--- 1 root vboxsf 68 Aug 3 07:59 sf_VB_Shared_Folder
Why are the permissions not changing?