com.apple.DiskManagement.disenter error 49153

I keep getting com.apple.DiskManagement.disenter error 49153

none of my external drivers working anymore.

APPLE, please fix it.

The exact same driver with same format, works on another laptop. Also ran on catalina.

The problem seems only appear in MacBookPro (15-inch, 2018).

I was same problem. In my case helped open disk in another laptop (Macbook Air with Catalina). On first laptop error again but on second laptop opening correctly. I was insert disk again to mine macbook after this operation and it worked correctly.

Where is Apple Support when we need them? So many people having this error message. I upgraded my OS to Catalina only last week and my Mac Superdrive which has always worked no longer appears in finder, and when I try to mount using disk utility I also get the error message: com.apple.DiskManagement.disenter error 49153.

Not good enough Apple! Where are you?

Oliver said: "...it was because it used the old HFS standard disc format, for which support in new macOS versions was dropped." [emphasis added]

Although your findings coincide with many of our personal experiences, the question at hand is, did Apple deliberately drop support of the "old HFS standard disc format" or was it an unintentional side-effect (i.e., a bug).

Do you (or anyone) have some official Apple Tech Note that states that they have dropped support of HFS Standard-formatted media, or are you inferring it from all of our collective experiences with Catalina?

I'd love to hear from Apple one way or the other on this. (Actually, I'd love for them to "fix" this decision to make HFS Standard obsolete)

I had the same error with my Seagate HDD. Initially, I was only able to access it in Read Only via NTFS. What I did (by accident, coz I cannot find anything in the web) is, click Verify in NTFS menu and after that it will run and once done I was able to have a write access as well. Let me know if this works for you guys.

I've downgraded my entire computer to Mojave, not just because of the instability of Catalina and problems with drives, but because of the removal of support for 32 bit apps. As far as I'm concerned, Apple have removed the upgrade path for macOS. My entire system is now noticeably smoother and more reliable.

Sadly, this adds the Mac to the growing list of products I will no longer update.

Same problem here - bought a new super drive to access older cd and dvd back-ups. They won't mount.

Help, Please!

Error, "Could not mount "name of disc". (com.apple.DiskManagement.disenter error 49153.)

I have the same issue with the same error code(com.apple.DiskManagement.disenter error 49153.). Even DVDs from Photodisc in Mac OS standard are not mounting. Could this be a preferences issue?

MacBook Pro (Retina, 15-inch, Late 2013) 2.3 GHz Quad-Core Intel Core i7

I have the same problem, I can mount music and movies, but I can't mount an old English/French dictionary on CD-ROM. I've just upgraded to Catalina 10.15.3 beta, but the problem persists. I get the same (com.apple.DiskManagement.disenter error 49153) message.

I've just used the Feedback Assistant to notify Apple of the problem.

Having the same issue. I have MacPro (early 2013, trash can). Upgraded to Catalina and now my SuperDrive not recognized. Also have a new MacBook Pro running Catalina and won't work. Have and older MacBookPro (2013), running High Sierra and it works. So clearly this is an Apple OS issue AND NEEDS TO BE FIXED! Where is the Apple fix people? Called Apple to trouble shoot. Reseting RAM and other steps did not work. Had to send diagnostics and await an answer in three days! Agent admits there's an issue and sometimes it's correctable . . . but not with me. GEEZ! All my photo libraries from 15 plus years no longer accessible.

I have the same problem with the error com.apple.DiskManagement.disenter error 49153

i ran first aid to an external drive that has been working flawlessly for the past 3 years just to see if There are any errors or if there are issues I need to fix. I regretted this right away as after running first aid (and the machine saying there’s nothing wrong with the external drive) that drive wouldn’t mount no matter what I do. Similar issues as others, greyed out, repair and other first aid options work but won’t mount on my desktop or laptop computers. Of course Apple techs says it’s the machine’s fault that it decided to clonk out at that very exact moment I ran first aid. This is an 8Tb drive and many years’ worth of work. The only reason I’m not freaking out is I have a cloud service (not apple’s!) provider that sent me a copy of that drive. Best investment in my life. But c’mon Apple, don’t undermine my intelligence by saying it is the fault of the drive.

Thats' great that it worked for your situation, but that preference was already set on my system, and it doesn't address the error when mounting HFS Standard formatted CDs on my system. So, when you say "I finally got Apple to fix *this* issue..." it sounds like this fix is only for a very specific scenario.

Thanks for letting us know, though!

STILL waiting on Apple to either:

1) Acknowledge the problem, even if there is no currently planned fix

2) Tell us this is the new way of things, so we'd better find our own workarounds.

It would have been helpful for Apple to have posted a warning along with the Catalina upgrade/downgrade, allowing those of us with important data archived on HFS disks to copy it to other media beforehand.