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Old 07-30-2011, 12:47 AM   #1
iBasher
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Registered: Sep 2010
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How do I properly mount a DMG file on ubuntu?


Hi!

I have a decrypted DMG file and want to mount it on /mnt/ramdisk. I ran file on it and it shows as it should:

Code:
# file ramdisk.dmg
ramdisk.dmg: Macintosh HFS Extended version 4 data last mounted by: '10.0', created: Tue Nov 16 23:25:47 2010, last modified: Wed Nov 17 01:29:16 2010, last checked: Tue Nov 16 23:25:47 2010, block size: 4096, number of blocks: 4272, free blocks: 429
So I tried to use losetup:

Code:
# losetup /dev/loop0 ramdisk.dmg
losetup: /dev/loop0: device is busy
What's wrong with that? Tried to mount anyway:

Code:
# mount -t hfsplus -o loop ramdisk.dmg /mnt/ramdisk
mount: wrong fs type, bad option, bad superblock on /dev/loop1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so
Tail shows:
Code:
# dmesg | tail -n 2
[ 9830.638694] hfs: invalid secondary volume header
[ 9830.638705] hfs: unable to find HFS+ superblock
The command losetup sets up the loop device for mounting so what I now did:

Code:
# losetup /dev/loop0 ramdisk.dmg
# mount /dev/loop0 /mnt/ramdisk
mount: wrong fs type, bad option, bad superblock on /dev/loop1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so
# dmesg | tail -n 2
[ 196.954927 ] hfs: invalid secondary volume header
[ 196.954927 ] hfs: unable to find HFS+ superblock
Now we have a new error. Any fix or way around?

Last edited by iBasher; 07-30-2011 at 01:46 PM.
 
Old 07-30-2011, 01:09 AM   #2
iBasher
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Anyone? -bump-

Last edited by iBasher; 07-30-2011 at 01:47 PM.
 
Old 07-30-2011, 11:00 AM   #3
iBasher
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Any help? Please?
 
Old 07-30-2011, 12:53 PM   #4
jefro
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You should edit posts. It looks from us to be two people have helped.

Don't make a loop make a folder and then mount it to that folder instead.

Might be a compressed file too.
 
Old 07-30-2011, 01:45 PM   #5
iBasher
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Registered: Sep 2010
Posts: 16

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But mount tells me that I need to use a loop device and im already trying to mount to a directory. I am kinda new to the forum thing so i didnt know about the edit. Sorry!
 
  


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