burning .dmg image on non-mac

[mhill]

Hi, my question is how do you burn a .dmg disc image using a CD-R burner attached to a machine not running OS X, i.e. linux, windows, etc?

On these other platforms a disc image, usually an ISO9660 filesystem, is simply the exact byte stream found on the CD, but .dmg files are different and not well documented, AFAIK. So the .dmg must be converted somehow.

I have tried using Disk Copy to convert a .dmg (compressed UDIF) to a DVD/CD-R master (.cdr.dmg) and got a new coaster. I also tried converting to a UDIF read-only non-compressed image, but got a similar result. The unix file command reports that these images I created are "Apple Partition data...", which seems strange to me. The original compressed image mounts fine under OS X.

Note, I don't want to stick the .dmg file into an ISO filesystem on a CD, but re-create the original CD.

Thanks in advance,
Marti

[jasonxz]

Converting a dmg to a cd master format with DiskCopy should work; however, I've only had luck by converting a dmg with Toast, then burning that on a Windows PC with Nero (by changing the file name extension to nrg).

[mhill]

OK, I just confirmed that the disc I burned was good. Something is screwy with the machine I tested it out on.

So, to summarize, converting the .dmg file to a DVD/CD-R master image will give you a file you can burn using any non-mac burning software. In my case I used cdrecord under linux.

Martin

[rustyslide]

mhill:

I try to let AOL supply me with all my coasters, so here is a hint to help reduce the number you produce. :)

The loop device in Linux is very useful in testing your images that you create before burning them.

From the cdrecord man page:

mount image.cdr.dmg -r -t iso9660 -o loop /mnt


This should mount the iso9660 image you made with diskcopy and allow you to check that all the files you want on the CDare what you want and where you want them.

The sum or md5 commands are also useful for verifying the contents of your files.

[usayd]

OK, I just confirmed that the disc I burned was good. Something is screwy with the machine I tested it out on.

So, to summarize, converting the .dmg file to a DVD/CD-R master image will give you a file you can burn using any non-mac burning software. In my case I used cdrecord under linux.

Martin

rite i dont really understand...can you plz explain exactly how i wud burn a .dmg file on a PC that would work on a mac?