In MacOS 12.1, cannot save file residing in encrypted disk image on PowerBook running OS X 10.5.8

Question

In MacOS 12.1, cannot save file residing in encrypted disk image on PowerBook running OS X 10.5.8

Hi,

For years, I've maintained a text file containing passwords and other sensitive data in a plaintext file stored inside an encrypted disk image on my 12" PowerBook running OS X 10.5 8. My main machine is a Mac Mini (2018) running MacOS 12.1 Monterey. Until upgrading to Monterey, I had no problems opening the disk image on my networked PowerBook, and then opening, editing, and saving the text file inside the disk image. Once I upgraded to Monterey (12.0), everything still worked, but dismounting the disk image from Monterey required me to use the "Force Eject" option (I posted about this issue a few weeks ago). But now, and I believe this began with my recent upgrade to MacOS 12.1, I can still mount the disk image and open the text file, but I'm no longer able to save the text file; when I try to save, I get a popup message box that reports that "The document "<filename>" could not be saved" (where "<filename>" is the name of the file I was attempting to save. As a workaround, I can access, edit, and save this file from my older Mac Mini (late 2009), running OS X El Capitan (10.11.6). Is this a known bug or limitation in Monterey?

Thanks,

Ken

Posted on Dec 21, 2021 9:54 PM

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Answer 1

Jan 4, 2022 3:57 PM in response to dialabrain

That's a reasonable assumption, but I didn't run into the "Force Eject" problem until MacOS 12.0 (it worked fine under Catalina and Big Sur), and I was able to edit and close the PowerBook file up through MacOS 12.0, so something in 12.1 appears to have broken that. I'm wondering if this actually is a 64-bit issue and perhaps Apple didn't fully implement the restrictions against 32-bit software initially, and what I'm seeing now are the "refinements" to that change.

Ken

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Answer 2

Jan 4, 2022 4:00 PM in response to David Carlin

Hi David,

I'm thinking that the fact that your files as well as mine that are exhibiting this problem might have something to do with the fact that they are encrypted. And since you reported in your separate post that you were able to open the files using Terminal makes me think that accessing remote, encrypted files was overlooked somewhat in MacOS 12.x.

Ken

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Answer 3

Jan 4, 2022 1:49 PM in response to Kenneth Hjulstrom

Ever find a solution? I have a similar concern here: https://discussions.apple.com/thread/253534944

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Answer 4

dialabrain

Level 10

122,651 points

Dec 21, 2021 10:37 PM in response to Kenneth Hjulstrom

My guess is, since Catalina and later are 64bit only, the PowerBook doesn't know how to deal with 64bit info. El Capitan still supported 32bit software.

Just a guess.

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In MacOS 12.1, cannot save file residing in encrypted disk image on PowerBook running OS X 10.5.8

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