See the front page of the YDL web site
regarding the "CD-RW Technical Advisory".
> Bug Report Traceback:
>
> TypeError: bad operand type(s) for +
>
> File "/usr/lib/yi/bootloader/py", line 463, in
> configure
> self.append = self.append + ("%s=ide-scsi" % device)
>
> File "/usr/lib/yi/template.py", line 57, in __call__
> return self.configure(args)