"Error Message" when opening software on MacBook Pro M2 Chip, How to fix?

"The disk image couldn't be opened failed to mount filesystems"

Help! I am downloading a software package, but when I try to open it I get that message. I have a MacBook Pro with an M2 chip and running Ventura 13.5.2. Contacted the software company, and they have never encountered this issue before. After a lengthy back and forth discussion and some digging on their part, they believe it is an Apple issue not their issue.

[Edited by Moderator]

MacBook Pro 13″, macOS 13.4

Posted on Sep 13, 2023 7:32 PM

Top-ranking reply

HWTech

Level 9

68,678 points

Posted on Sep 18, 2023 6:38 AM

Are you able to open & mount other .dmg files you download? Such as from Vivaldi, or Firefox?

If you can open these files, then the issue is most likely with the developer of your app. If you can verify you can open & mount other downloaded .dmg files, then the developer should be looking at the issue with their .dmg file, by providing a hash verification code so you can be sure you are getting the file uncorrupted since the download process (or even upload process) can be corrupting it.

Edit: You can also perform a clean install of macOS and test whether you can open a new downloaded copy of the .dmg file. You can install macOS to an external drive if you want so as not to interfere with the setup on the internal drive. At least this will narrow down the problem.

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"Error Message" when opening software on MacBook Pro M2 Chip, How to fix?

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