In Linux you can mount almost any formats! most people don’t know they can mount dmg files in Linux.
Dmg files are disk image format for Macintosh, file system type for dmg and cdr files in Mac is HFS+
in Linux you can mount it with this command:
# mount -o loop -t hfsplus image.dmg /path/to/directory/you/want
make sure the mount point (/path/to/directory/you/want) directory exists. you can mount it in /media/cdrom for instance if you didn’t insert any CD.
feel free to post your problems in comments
UPDATE: seems like hfsplus filesystem type is not working for everybody. there is another way of doing it. Basically DMG files are compressed IMG. So you need to decompress DMG to IMG file and then mount it.
For that you need to download dmg2img from http://vu1tur.eu.org/tools/download.pl?dmg2img.tar.gz
Run
tar -zxvf ./dmg2img.tar.gz
cd dmg2img
make all
If everything goes okay, then you can decompress your dmg file by executing the command,
./dmg2img -i /path/to/inputfile.dmg -o /path/to/outputfile.img
and remember, you must be inside the dmg2img directory at all times in order to run the command listed above. Also, the img file needs to be in the same location as the original dmg file. And preferably, the img file should have the same name as the dmg file.
After decompressing the dmg run
sudo modprobe hfsplus
then if hfsplus is installed (if not, run sudo apt-get install hfsplus ), run
sudo mount -t hfsplus -o loop /path/to/outputfile.img /mount/point
To create the mount point, run mkdir -p /mount/location
Note: hfsplus may not be installed by default. That might be why the first method is not working for some of you.
Leave your comment if works or not.
Thank you! This was exactly the information I needed. For some reason
using “-t auto” returned “you must specify the filetype”. I tried
“hfs” and “ufs”, which the man page for mount(8) mentions, but it
doesn’t list “hfsplus”. Looks like somebody (me?) needs to update the
kernel drivers to auto recognize an hfsplus image.
[UPDATE] I looked into adding the auto-detection to the Linux kernel.
Strangely, it looks like Apple hasn’t given back the changes to
recognize the magic in .dmg files to the “file” project at
darwinsys.org. That means the the file(1) command used by all BSD and
GNU/Linux distributions, the most fundamental command for recognizing
the file types regardless of extension, cannot detect DMG files. How
odd, I must be missing something. I can’t see a reason for Apple to
keep it secret.
tried and working on Ubuntu, not sure if you need to update or sth. what distro you’re using?
and btw I updated the tutorial with another method. DMG is a compressed .img file. So it might be easier to decompress it and mount it as normal. you just need http://vu1tur.eu.org/tools/download.pl?dmg2img.tar.gz
more info in the post
mount: wrong fs type, bad option, bad superblock on /dev/loop0,
missing codepage or helper program, or other error
In some cases useful info is found in syslog – try
dmesg | tail or so
fstype is not wrong and if you try you’ll see it’s working just fine!
i’ve tried this. it doesn’t work. have the same error as the guy above. followed instructions to the point.
I updated this howto, if didn’t work try second method. If both doesn’t work, it’s either your dmg damaged or you do something wrong
WORKS O.K.
except all the programs sizes are zero
mounted?
sorry about the caps.
fingers got in way…
Mounts just fine,
really has a problem with the resource/data forks in Mac OS (hfs/hfs+)
format. data files seem o.k.
I was not thinking I can mount DMG on Linux!
Dmg2Img isn’t working for me…
I will try mounting the DMG shortly.