2 Replies Latest reply: Sep 8, 2008 7:17 AM by roam
Nub Cake Level 1 Level 1
I've got a disc image here, with the file extention ".iso" As far as I've read, macOSX should be able to mount the disc image BUT... it won't. I tried converting the image in disc utility (though I'm not entirely sure if I did it right) and it still didn't work. Whenever I try to mount the image, I get the message, "no mountable file systems" (and that goes for both the original image and the converted one). Is it likely that I just have a faulty disc image?

Macbook, Mac OS X (10.5.2)
Solved by Courcoul on Sep 8, 2008 6:56 AM Solved
A .iso is functionally identical to a .dmg, minus the error correction stuff, so if it is stored and/or transmitted on reliable media there's no reason to "convert". However, if Disk Image Mounter says it has 'no mountable filesystems', best bet is that it got damaged somewhere along the way and you will need to reacquire a good copy.

BTW, since .dmg is Apple-only, whereas .iso is an international open standard, I've had the need to go the other way: convert the .dmg to an .iso. There's a free utility called Damage Isolation (pun on the name) that does that quick enough.