Fix Toast disk image mounting under 10.2.x
Although the much enhanced Disk Copy under OS X offers great support for various disk image formats, it is limited to supporting data disk images. Toast also can support making disk images of other CD types - especially Audio CDs
Toast makes use of a kernel extension to handle a lot of it's disk image magic, particularly the mounting of disk images as virtual disks on the desktop.
Under 10.2.x, Apple made changes to the kernel extension system to make it more secure and stable. Previously kernel extensions could be owned by any user, however as they run at such a low level in the OS hierarchy, this created a security loophole whereas an untrusted kernel extension could be installed and run with non admin rights.
These changes however have broken Toast's disk image handling kernel extension which is hidden inside the Toast application package so that it will no longer mount disk images.
The following procedure outlines how to fix this.
Prequisites 10.2 & Toast 5.1.4
- find the TDIX directory
dirname "`locate ToastImageMounter`" - in the terminal, change directory to the location generated from the above command
- set permissions on the TDIX kext
sudo chown -R root:wheel ./TDIXController.kext - load the kext to force the OS to fix the kext for 10.2
sudo kextload ./TDIXController.kext - Click fix in the dialog that appears
- Disk mounting will now work properly under 10.2
Is there a hack to 10.2 to allow DiskCopy to image an Audio CD?
I tried your directions, but nothing seemed to work, i just kept getting 'usage: dirname path' from the start... a little help would be nice. thanks. Also, when i try to drag audio cds into the toast window, it goes to the audio tab, and then nothing happens... this worked fine until I upgraded to 10.2.... the other week... thanks
I've been using Disk Utility to make the disk image to get around the problem... Will this also fix 10.3?
and will those instructions work for anyone exactly as shown, no mods? (looks scary to me).
This was made redundant by more recent Toast updates that fixed this problem, however the technique is still useful to note for other kernel extensions that won't load.
Again, this is not normal stuff and use with caution.