Lost CAM Access to DVD Writer

Thomas Laus lausts at acm.org
Thu Sep 5 22:39:33 UTC 2013

> > Hi,
> > 
> >>>> :-( Unable to CAMGETPASSTHRU for /dev/cd0 Inappropriate ioctl for 
> > device.
> I encounter the same problem and reinstalling dvd+rw-tools-7.1 solved it.
> Henri

Thank you for solving this problem for me.  I removed and re-installed 
dvd+rw-tools-7.1 and this issue went away on both i386 computers.  I have 
been tracking FreeBSD 9-STABLE one one of them since 9.0 and I use FreeBSD 
release updates on the other one.  A system library must have changed that 
affected growisofs that required re-installation of that port.  It was 
totally unexpected that an update within a branch would affect a port.  There 
wasn't any UPDATING entry in /usr/ports that would have provided a warning to 
rebuild ports that depend on the updated system function.

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