No Mountable File Systems Dmg Fix

Posted : admin On 11/10/2019

After downloading the dropboxinstaller.dmg from the website I recieve a warning dialogue box stating the disk image could not be openend because of no mountable file system. I downloaded it several times with the same result. The firewall is turned off. I rebooted the. I have just had the same problem, with a disk image created by Disk Utility itself. In my case, the disk image is whole disk image, i.e. It contains a bare filesystem, no partition map whatsoever.Neither Disk Utility nor hdiutil attach disk.dmg would work, both complaining about the dreaded 'no mountable file systems' issue. What helped was to mount it from the command line, in two easy steps.


Force-mount unmountable disk images 16 comments Create New Account
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Great, Great, Great.
I am creating a lot of disk images at the moment for the distribution of a product and obviously I have to test those images. After mounting about 10 the Finder stops doing it's work as described in the hint. This problem exists even in 10.3.5 and I am very happy now, cause rebooting, the only solution I had figured out so far, really interrupts my work big time.
Thanks for the tip.
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DubMaster
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Rehab is for quitters!

I have an image that is password protected, and it still doesn't mount with this hint. Here's the output from terminal. Since the GUI password box came up on the display, I suspect that whatever OSX bug the command line evades is non-evaded when the PW function is called. Another encrypted image that mounts ok in the standard way (double-click) mounts fine using hdiutil. Haven't tried rebooting to see if that lets me mount the first image.
AppleScript to Force-mount unmountable disk images
It just so happens that we already built an AppleScript solution using this method; I'll paste it below for those who are Terminally challenged. As for the issue with password protected disks, this script will indeed trigger a GUI window asking for any such passwords not already stored in Keychain. I have yet to find an instance where presentation of the password box triggered the failure we're looking to overcome in this hing, but the -stdinpass switch would likely resolve it (see the man page), and could be added to this script. Sorry about the code wraps, Rob, I tried to install AS returns, but they wouldn't deal with the line wraps any better because of the parentheticals.
AppleScript to Force-mount unmountable disk images
[Rob, you can delete the post above (when are we going to get edit privileges?) if you want; I modified the script to fit nicely--F]
It just so happens that we already built an AppleScript solution using this method; I'll paste it below for those who are Terminally challenged. As for the issue with password protected disks, this script will indeed trigger a GUI window asking for any such passwords not already stored in Keychain. I have yet to find an instance where presentation of the password box triggered the failure we're looking to overcome in this hing, but the -stdinpass switch would likely resolve it (see the man page), and could be added to this script.
AppleScript to Force-mount unmountable disk images
Man, it is amazing how fast folks around here report bugs. Sorry for the oversights; the script was originally written for single DMGs, and I added multiples without really testing it or thinking it through; also we rarely use a special character in a file path because we're so used to working on the web. All bugs should be resolved, except those idiosyncracies that exist with name problems in hdiutil (such as 'image already specified' errors).
AppleScript to Force-mount unmountable disk images

Now, if you could add an 'on open' handler that handled drag-and-drop, you'd be all set! Just drag your dmg files onto the script and they would mount. No file dialog to get in the way. :-)

AppleScript to Force-mount unmountable disk images

Hi there..
Well, I tried both versions of your script on several disk images (including one that I KNOW mounts fine by itself), and most of them were grayed out in my file dialog. My first thought was that perhaps they were corrupted, but at least one of them mounts fine on its own, and it was not accessible either.
I very much appreciate your scripting skills, but do you have any idea why I might be having such problems? Any suggestions from anyone else out there? I would really appreciate the help!
Thanks in advance,
mlaurenc

AppleScript to Force-mount unmountable disk images

I may just be a big newbie, (and I undoubtably am), but when running this script the only items I could select when it asked me which DMG I wanted to mount were file folders and no DMG files. Even with a foler selected, 'Choose' never highlit. Am I doing something wrong?
Also, is there an applescript super newbie thread I should be hitting up before getting to knee deep in this?
by the way, rebooting still didn't allow me to mount the DMGs. I'm running 10.3.7.
Thanks for any/all help guys!
-Seth

No Mountable File Systems Dmg Fix 1

AppleScript to Force-mount unmountable disk images

I may just be a big newbie, (and I undoubtably am), but when running this script the only items I could select when it asked me which DMG I wanted to mount were file folders and no DMG files. Even with a foler selected, 'Choose' never highlit. Am I doing something wrong?
Also, is there an applescript super newbie thread I should be hitting up before getting to knee deep in this?
by the way, rebooting still didn't allow me to mount the DMGs. I'm running 10.3.7.
Thanks for any/all help guys!
-Seth

While this is a nice workaround - I really wish the problem would be solved instead. Very annoying. On my machine - happens everyday after about my tenth disk mount. The image actually appears to get mounted and appears in /Volumes but it shows up no where else and is impossible to access.

I must say, it doesn't happen much with me. But if it shows up in /Volumes, you should be able to refresh the finder by doing 'disktool -r'. I am writing a script that triggers mounting of dmg and the 'disktool -r' seems to solve some of my problem.
Good luck

No Mountable File Systems Dmg Fix Windows 7

I tried this Hint for the first time today, but I didn't appear to have the relevant utility. Typing in hd and tab brought up
hdiutil
which is not the command quoted in the actual command string in the Hint.
Anyway, I tried hdiutil, and it tried to attach the dmg, but failed with the same problem: no mountable file systems. <sigh>
Back to restarting..
from Clytie, still having trouble
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Clytie Siddall -- Renmark, in the Riverland of South Australia
iBook G3, 10.3.5, all updates current

Yeah, 'hdituil' is a typo.

Unfortunately, this didn't work for me. :-(
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Ron

Dmg No Mountable File System

I tried the applescript but nothing is highlight-able
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Infants are born. Children learn as they grow. Knowledge is power. Information in the wrong minds is deadly!!!

Same here
It won't work
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Infants are born. Children learn as they grow. Knowledge is power. Information in the wrong minds is deadly!!!

Are you facing ‘no mountable file system’ error?

How to fix ‘dmg no mountable File System’ error?

Why DMG file becomes inaccessible?

Sometimes while accessing the file system of Mac’s OS you encounter an error message that is ‘No mountable File System’. This message indicates that stored files of file system can not accessible. You know that File System manages and maintains the different types of files and folders of the system. It is a self-regulating object of the operating system that helps the OS to run files properly. A user usually stores a large number of data in the file system. In this way it is necessary to give the security and compression to the file system. So to perform this responsible work Mac OS uses a DMG file with ’.dmg’ extension.

DMG (Disk Mounted Graphics) is a file used on Macintosh Operating System X. It is just like an image which contains all contents of the ‘File system’. Its format allows file compression of the data with password protection. You can easily create DMG file by the Disk Utility of the Mac’s OS with extension ‘.dmg’. Sometimes when operating system mounts (It is the process of making computer file system ready to use) this DMG file it throws an error message ‘No mountable File System’.

This error arises when OS do not get the file system in proper format to mount. In this situation file system either damaged or missing. Because of this reason you can not access DMG file and you have to face data loss situation. To tackle this problem your system required a Data Recovery Software that can recover your all lost data. Mac Data Recovery Software is the best choice in this case.

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