Adobe connect no mountable file systems

Question:

Question: "No Mountable File Systems"

This appears to be a pretty known error. The only problem is, no solution seems to fix it. Lately I have been trying to download a few trials for software such as Little Snitch and Ableton(they both are amazing products from what I have heard). The only issue is for both of them the Disk Mounter gives me an error "No Mountable File Systems". This just started recently so I really have no idea what is going on. I tried opening them with Disk Utility as well and I get the same error. I also tried terminal commands and got the same error. There really seems to be no winning on this one. I really need to fix this ASAP.

Thanks.

Mac OS X (10.7.3)

Posted on Mar 12, 2012 9:54 AM

Answer:

Answer:

I finally tracked down my "no mountable file systems" errors to com.lexar.driver.LexarFilterScheme - this is installed as part of a Lexar Jump Drive's secure II vault driver that my work requires me to use. Doesn't seem to be a newer version on Lexar's site.

As soon as I deleted /System/Library/Extensions/LexarFilterScheme.kext and rebooted, the error went away. Took me quite a while to isolate it to that piece of crap. 🙂

Posted on May 13, 2012 7:42 AM

User profile for user: diablo9333

Question: "No Mountable File Systems"

Fix The Error 'No Mountable File Systems' on Mac

Summary: Help you fix the Mac error "The following disk images couldn't be opened. No mountable file systems." with efficient solutions. Then, you can mount and open the DMG file on your Mac again.

Usually, when you double-click a dmg file (Disk Image), it will mount and open automatically. However, the target DMG file doesn't open this time but pops up an error message like the following:

The following disk images couldn't be opened. No mountable file systems.

What's wrong? Don't worry. This article will show you what this error means and how to fix the "No mountable file systems" error on your Mac. And then, you can access all data on the DMG file. Let's explore more together.

Table of Contents:

• 1. What does it mean when Mac says 'no mountable file systems'?
• 2. How to fix the error 'No mountable file systems'?
• 3. Why does the 'No mountable file systems' error occur on Mac?
• 4. FAQs about no mountable file system

What does it mean when Mac says 'no mountable file systems'?

The error "No mountable file systems" showing up on your Mac indicates that the disk image (or dmg file) cannot be mounted and opened. Mostly, it is a corrupted dmg file or the operating system fails to recognize it.

How to fix the error 'No mountable file systems'?

The causes of the error vary as there are different scenarios. So, there are several solutions for resolving the problem. You can troubleshoot this error by trying the ways below one by one.

Solutions for fixing "No mountable file systems" on Mac:

1. Download the DMG again
2. Reboot your Mac
3. Check the file system of the DMG
4. Mount the DMG through the Terminal

Solution 1: Download the DMG file once again

Most of the time, this error shows that the DMG file is already corrupt or corrupt by your wrong operation during downloading.

So, you can try to download it again with all the download assistant plug-ins off. If the newly downloaded DMG file still cannot be opened, try downloading it from another browser.

Or, you can directly download the DMG file via using Terminal.

• Open Finder > Applications > Utilities > Terminal.
• Enter the following command in Terminal. Here, you should replace url with the DMG download URL. Then, press Return / Enter.curl -O url

 Note: To check the DMG download URL, right-click it in Finder and click Get Info > More Info > Where from.

Solution 2: Restart your Mac

Sometimes, the Mac OS detects the DMG file but fails to recognize its format. So, it feedbacks you on the error message "No mountable file systems" when you click the DMG.

You can try to reboot your Mac to check if it is just caused by a temporary bug in your operating system.

Solution 3: Check the file system of the DMG

The Disk Image is a type of virtual drive. It is also formatted with a file system before storing data. If the format of the downloaded DMG is not compatible with your Mac, it can't be mounted.

Usually, Mac OS is only compatible with APFS, HFS+, exFAT, and FAT32/16 while read-only on NTFS drives. Besides, macOS Sierra (10.12) and earlier don't support APFS.

You can download the DMG on a Windows PC to see if it can be opened. If yes, the DMG maybe only Windows-compatible. And if your Mac runs macOS 10.12 or earlier, you can upgrade your macOS version to check if the error can be fixed.

Solution 4: Mount the DMG in Terminal

If the above simple tricks can't help you mount and open the Disk Image, you can try to mount it using the command in Terminal.

Here's how to mount the DMG in Terminal:

• Search for Terminal in the Spotlight Search box at the upper right corner of your screen. Double-click Terminal in the recommended results to open it.  
  
• Type the following command in Terminal and add a space. Don't press Return / Enter at this time.hdiutil attach -verbose
• Drag the DMG file from your Finder onto the Terminal window to fill in the location of the DMG file into your Terminal.

Now, you can check whether the DMG file shows up on your desktop or Finder. If it is, the DMG file is mounted successfully.

Moreover, some users even find that the security policies they set will make the DMG file can't be mounted on Mac. Therefore, you can also check your security settings to enable the DMG mountable on your Mac.

Why does the 'No mountable file systems' error occur on Mac?

The unmountable issue of Disk Images is just like that of hard drives, which is also related to the OS and the file format.

When a Disk Image is not mounted on your Mac, the most common reasons are as below:

• The DMG file is already corrupt.
• The format of the DMG file is corrupt or not compatible with your Mac OS.
• Some bugs pop up during the operating system recognizing the DMG file.
• Virus attack. 

Conclusion

The macOS error "The following disk images couldn't be opened. No mountable file systems." is very common in daily life. When you run into this problem, it doesn't mean that you can't access the DMG files anymore.

The fixes mentioned in this post are testified useful for resolving the issue. You can follow them one by one to make your unmounted DMG file accessible again. Hope you this article will help you out the trouble.

Also like:

• Cannot Mount External Hard Drive on Mac, How to Fix?

FAQs about no mountable file system

A

An Apple Disk Image (DMG) often refers to the file format used to store compressed software installers instead of a need for a physical disk. When a DMG opened, it also mounted as a volume in Finder and Disk Utility.

A

Usually, when you double-click the DMG file in Finder, it will mount and open automatically. Then, you can access files or software installers stored on it.

Connie Yang

Connie Yang is the primary columnist in the computer field at iBoysoft. She is enthusiastic about sharing tech tutorials on data recovery and operating system-related problems resolution. Over the years, Connie has published many computer-related guides and introductory articles.

Jessica Shee

Jessica Shee is a senior tech editor at iBoysoft. Throughout her 3 years of experience, Jessica has written many informative and instructional articles in data recovery, data security, and disk management to help a lot of readers secure their important documents and take the best advantage of their devices.