In the "#======================= Share Definitions =======================" section of smb.conf exists the original [homes] share from Debian which looks like this but is scattered throughout the section:
[homes] comment = Home Directories browseable = no read only = yes create mask = 0700 directory mask = 0700 valid users = %S Ubuntu usually comments out this share but in this case it was incomplete. Only [homes], "comment = Home Directories", and "browseable = no" were commented out. This leaves "read only = yes", "create mask = 0700", "directory mask = 0700" and "valid users = %S" intact and interpreted by samba as global parameters which makes a mess of things. In this particular bug report having "valid users = %S" interpreted as a global parameter induces the originally posted error message. All of the [homes] share parameters must be commented out. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1261873 Title: 'net usershare' returned error 255 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/samba/+bug/1261873/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs