I have the same problem. It seems to be a problem with gksudo rather than the installer. If i try to run gksudo with whatever command it ends with
- Code: Select all
(gksudo:3859): Glib-CRITICAL **: g_str_has_prefix: assertion `str !=NULL' failed
while if I start the installer from terminal without gksudo it starts, but doesn't have the privileges to actually work.
EDIT: so the installer works, but can't get root priviledges any other way than gksudo which is broken. Mint user isn't in the sudoers file so even if you set a user password and try to sudo su, it won't work.
EDIT2: When I created the Live USB with Unetbootin instead of Universal USB Installer it started working.