As it turns out, because Mythbuntu already has Samba built in, it is easy to make it a file server in your home network by using the same tool. First, identify a place where you want to open up a new folder for file sharing. In this example, we’ll do “/fileserver/”. Then, let us issue the following command to edit the Samba config file.
su pico /etc/samba/smb.conf
Note the “su” command; it will require you to put in your password before editing. Once the text editor pico loads up, add the following section at the end of the configuration file.
[files] comment = Files path = /fileserver/ public = yes writable = yes create mask = 0660 directory mask = 0770 force user = mythtv force group = mythtv
Once this is done, restart the samba daemon from your command line.
/etc/init.d/smb restart
You should now be able to access the new “files” samba share from another computer on your network.