Burning OS X .dmg disk images...

David Kelly dkelly at HiWAAY.net
Sun Sep 12 19:42:14 PDT 2004

On Sep 12, 2004, at 1:49 PM, mailing lists at MacTutor wrote:

> Does anyone know of how to burn Mac OS X .dmg images under FBSD?
> I have .dmg files from an OSX system (10.3.x) that I want to convert 
> to ISO images (if necessary) for burning to cd/dvd. I can't find 
> anything in the list archives about this.

On MacOS X use the command line utility "hdiutil" (see man page) to 
convert to .iso, shoot that file over to FreeBSD and then use either 
burncd or cdrecord.

Open a Terminal window on MacOS to get a shell then do something like 

% hdiutil makehybrid -o my.iso my.dmg -hfs -joliet -iso

For some reason the above with -hfs generates a .iso file which mounts 
when double-clicked but an icon does not appear on the desktop. It may 
have something to do with the particular .dmg file I used. However 
double-clicking the .dmg file appears on the desktop as expected. 
Remove -hfs from the hdiutil command and the default appearance is 
different than .dmg but otherwise produced a desktop icon for the 
mounted volume as expected.

Normally MacOS X mounts .iso files as a volume when one double-clicks, 
and the icon appears on the desktop. But not with the .dmg file 
converted to .iso with -hfs that I was playing with just now. It 
mounted but without the desktop icon. Was listed in /Volumes/ and with 
df(1). Had to use "hdiutil detach /dev/disk6s2" to get rid of it. Or 
logout/login did the trick as well.

David Kelly N4HHE, dkelly at HiWAAY.net
Top-posters will not be shown the honor of a reply.

More information about the freebsd-questions mailing list