Hard Drive Won’t Mount | What is Mac Error -119930876?

Are you trying to connect your external hard drive to your Mac but you keep seeing dialogue box with the term “Could not mount” + the name of your external hard drive + followed by the phrase “com.apple.DiskManagement.disenter error -119930876 message”?


Take a deep breath, you’re in the right place. This error message is hardly descriptive of the problem, and essentially leaves the computer user no better off than if it had simply said “ERROR”. While the content of the message itself is essentially useless, you can rest assured that the underlying issue is fairly straightforward.

Problems Mounting External Hard Drive on Mac

This article will touch on what can cause “Could not mount” errors, how to reduce the risk of these particular threats, and how to resolve issues. While we honestly intend for this guide to enable our readers to personally restore their files at home, the fact of the matter is that not every “Could not mount” error message is equal, so we will also provide instruction on the best way to go about data recovery in the event that you would require professional assistance to retrieve your files.


Having a Hard Time Mounting a Hard Drive on Your Mac?

There is no cause for concern if the error message you saw is slightly different than what’s pictured in this screenshot. The section of the actual message that says “flash256” is simply in reference to the name of my flash drive (with a capacity of 256 GB and change) that I was attempting to mount on my laptop.

The screenshot included in this section was actually encountered by the author, JB, in the course of regular work activities. While this error message initially caught me off guard and left me scratching my head, it really isn’t all that complicated.

What is Error -119930876?

The “error -119930876” error message indicates that your computer has encountered a conflict while mounting and / or unmounting a removable storage device like a flash drive, SD card, or external hard drive. In my particular instance it’s related to software that can be used to flash bootable .iso files to removable storage. The Fedora media writer makes it easy to download and flash the latest version of any of the official Fedora (Linux operating system) images. The Fedora media writer can also be used to flash additional .iso files, outside of the umbrella of software Fedora creates themselves.

How to Fix Error -119930876?

This article is not an indemnification of Fedoras tool. I still have the Fedora media writer application on my desktop and I still use it on a semi-regular basis. However, I still run into error -119930876 if I attempt to mount or unmount a removable disk using disk utility while I have Fedora Media Writer open in the background. In my particular instance of error -119930876, the issue can be resolved instantly, by simply closing the (Fedora) application running in the background, and attempting the initial action again.

Data Recovery After Error -119930876

While my personal experience with error -119930876 was relatively painless, not everyone who encounters this error message will get off so easily. There are some scenarios where your pictures, videos, documents, spreadsheets, files, …, your data, will be inaccessible regardless of which applications are open in the background. In these situations having a data recovery plan in place is crucial to maximize the likelihood that you regain access to your precious data. Fortunately, Gillware data recovery has two decades of experience restoring files that were lost, deleted, overwritten, or otherwise inaccessible. So, if you ran into error -119930876, followed the suggestions outlined in this article, and still don’t have access to your files; your next step is submitting your information to Gillware using the form below.

Did you Recently Lose Data After Experiencing Error -119930876?

We can help!


Additional Reading

Interested in learning more about “Could not mount” error -119930876? Visit the official Apple discussion forum to review expert responses to the Apple error in question or contribute to the conversation if you have valuable info to add!

JB Larson
JB Larson

JB Larson is technologist passionate about researching data storage devices, educating clients about technology, and playing the piano when he's not working.

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